The Experts below are selected from a list of 1968 Experts worldwide ranked by ideXlab platform
Morris Goodman - One of the best experts on this subject based on the ideXlab platform.
-
Phylogenetic relationships and divergence times among New World monkeys (Platyrrhini, Primates).
Molecular Phylogenetics and Evolution, 2006Co-Authors: Juan C. Opazo, Derek E. Wildman, Tom Prychitko, Robert M. Johnson, Morris GoodmanAbstract:Orthologous sequences of six nuclear genes were obtained for all recognized genera of New World monkeys (Primates: Platyrrhini) and outgroups to evaluate the phylogenetic relationships and to estimate divergence times. Phylogenetic relationships were reconstructed by maximum parsimony, maximum likelihood, and Bayesian approaches. All methods resolved with 100% branch support genus-level relationships, except for the grouping of Aotus as a sister taxa of Cebus and Saimiri, which was supported by low bootstrap percentages and posterior probability. All approaches depict three monophyletic New World monkey families: Atelidae, Cebidae, and Pitheciidae; also within each family, all approaches depict the same branching topology. However, the approaches differ in depicting the relationships of the three families to one another. Maximum parsimony depicts the Atelidae and Cebidae as sister families next joined by the Pitheciidae. Conversely, likelihood and Bayesian phylogenetic trees group families Atelidae and Pitheciidae together to the exclusion of Cebidae. Divergence time estimations using both local molecular clock and Bayesian approaches suggest the families diverged from one another over a short period of geological time in the late Oligocene-early Miocene.
-
The Place of Callimico Goeldii in the Callitrichine Phylogenetic Tree: Evidence from von Willebrand Factor Gene Intron II Sequences
Molecular Phylogenetics and Evolution, 1999Co-Authors: Renata Chaves, Scott L. Page, Iracilda Sampaio, Horacio Schneider, Maria Paula Cruz Schneider, Morris GoodmanAbstract:Sequences of a 0.9-kb DNA segment spanning intron 11 of the von Willebrand Factor gene (vWF) were determined for 21 individuals of 19 primate species. The results of maximum parsimony and maximum likelihood analyses of these vWF sequences are congruent with previous molecular findings from other nonlinked nuclear genomic loci which divide the platyrrhine superfamily Ceboidea into three monophyletic families: Cebidae, Atelidae, and Pitheciidae. The vWF results strongly support the taxon Callitrichinae as a monophyletic subfamily within Cebidae. The four extant callitrichine genera constitute tribe Callitrichini, and the basal branchings within this tribe first separate out Saguinus (tamarins), next Leontopithecus (lion tamarins), and last the sister genera Callimico (Goeldi's monkeys) and Callithrix (marmosets). Callithrix divides into three subclades, with pygmy marmosets (C. pygmaea) as sister of the C. argentata species group and with the C. jacchus species group as their sister. Fossil and DNA evidence place the emergence of the callitrichine clade in the basal cebid radiation at about 20 Ma (million years ago) and the three basal branchings in the callitrichin radiation at about 13 to 11 Ma. In turn, the branchings separating the three subclades of Callithrix are placed at about 5 to 4 Ma.
-
The Genomic Record of Humankind's Evolutionary Roots
American Journal of Human Genetics, 1999Co-Authors: Morris GoodmanAbstract:Taxa above the genus level that are referred to in the text are indicated here in boldface. Order Primates (63 Ma) Semiorder Strepsirhini (50 Ma) Suborder Lemuriformes (45 Ma) Infraorder Chiromyiformes Family Daubentoniidae, Daubentonia: aye-ayes Infraorder Eulemurides Superfamily Lemuroidea (28 Ma) Family Cheirogaleidae (22 Ma) Subfamily Microcebinae, Microcebus: mouse lemurs Subfamily Cheirogaleinae, Cheirogaleus: dwarf lemurs Family Indridae, Propithecus: sifakas Family Lemuridae, Eulemur: brown lemurs Suborder Loriformes Family Loridae (23 Ma) Subfamily Galagoninae, Otolemur: bush babies Subfamily Perodicticinae, Perodicticus: pottos Subfamily Lorinae, Nycticebus: slow lorises Semiorder Haplorhini (58 Ma) Suborder Tarsiiformes Family Tarsiidae, Tarsius: tarsiers Suborder Anthropoidea (40 Ma) Infraorder Platyrrhini Superfamily Ceboidea (26 Ma) Family Cebidae (22 Ma) Subfamily Cebinae (20 Ma) Tribe Cebini, Cebus: capuchin monkeys Tribe Saimiriini, Saimiri: squirrel monkeys Subfamily Aotinae, Aotus: night monkeys Subfamily Callitrichinae Tribe Callitrichini (13 Ma) Subtribe Saguinina, Saguinus: tamarins Subtribe Leontopithecina, Leontopithecus: golden lion tamarins Subtribe Callimiconina, Callimico: goeldi's monkeys Subtribe Callitrichina Callithrix (Callithrix): marmosets (jacchus group) Callithrix (Cebuella): pygmy marmosets Callithrix (Mico): marmosets (argentata group) Family Pitheciidae Subfamily Pitheciinae (19 Ma) Tribe Callicebini, Callicebus: titi monkeys Tribe Pitheciini Subtribe Pitheciina (11 Ma) Pithecia: saki monkeys Chiropotes (Chiropotes): bearded saki monkeys Chiropotes (Cacajao): uacari monkeys Family Atelidae Subfamily Atelinae (17 Ma) Tribe Alouattini, Alouatta: howler monkeys Tribe Atelini (12 Ma) Subtribe Atelina, Ateles: spider monkeys Subtribe Brachytelina (10 Ma) Lagothrix: woolly monkeys Brachyteles: woolly spider monkeys Infraorder Catarrhini Superfamily Cercopithecoidea (25 Ma) Family Cercopithecidae Subfamily Cercopithecinae (15 Ma) Tribe Colobini (10 Ma) Subtribe Colobina, Colobus: colobus monkeys Subtribe Presbytina (7 Ma) Trachypithecus: langurs Nasalis: proboscis monkeys Tribe Cercopithecini (10 Ma) Subtribe Cercopithecina (9 Ma) Cercopithecus: guenons Erythrocebus: patas monkeys Chlorocebus: green monkeys Subtribe Papionina (9 Ma) Macaca: macaques Cercocebus (Cercocebus): terrestrial mangabeys Cercocebus (Mandrillus): mandrills, drills Papio (Papio): baboons (hamadryas group) Papio (Theropithecus): gelada baboons Papio (Lophocebus): arboreal mangabeys Family Hominidae Subfamily Homininae (18 Ma) Tribe Hylobatini Subtribe Hylobatina (8 Ma) Symphalangus: siamangs Hylobates: gibbons Tribe Hominini (14 Ma) Subtribe Pongina, Pongo: orangutans Subtribe Hominina (7 Ma) Gorilla: gorillas Homo (Homo): humans Homo (Pan): chimpanzees, bonobosAdditional relevant references are included in a Supplemental Reading List, which appears, in the electronic version of this article, immediately after the References.
-
Molecular phylogeny of the New World monkeys (Platyrrhini, primates) based on two unlinked nuclear genes: IRBP intron 1 and epsilon-globin sequences.
American Journal of Physical Anthropology, 1996Co-Authors: Harald Schneider, M.l. Harada, C. M. L. Barroso, John Czelusniak, Iracilda Sampaio, Maria Paula Cruz Schneider, Morris GoodmanAbstract:Nuclear sequences of the 1.8 kilobase (kb) long intron 1 of the interstitial retinol-binding protein gene (IRBP), previously determined for 11 of the 16 extant genera of New World monkeys (superfamily Ceboidea, infraorder Platyrrhini), have now been determined for the remaining 5 genera. The maximum parsimony trees found, first with IRBP sequences alone and then with tandemly combined IRBP and ϵ-globin gene sequences from the same species, supported a provisional cladistic classification with the following clusters. Subtribes Callitrichina (Callithrix, Cebuella), Callimiconina (Callimico), Leontopithecina (Leontopithecus) and Saguina (Saguinus) constitute subfamily Callitrichinae, and subfamilies Callitrichinae, Aotinae (Aotus), and Cebinae (Cebus, Saimiri) constitute family Cebidae. Subtribes Chiropotina (Chiropotes, Cacajao) and Pitheciina (Pithecia) constitute tribe Pitheciini; and tribes Pitheciini and Callicebini (Callicebus) constitute subfamily Pitheciinae. Subtribes Brachytelina (Brachyteles, Lagothrix) and Atelina (Ateles) constitute tribe Atelini, and tribes Atelini and Alouattini (Alouatta) constitute subfamily Atelinae. The parsimony results were equivocal as to whether Pitheciinae should be grouped with Atelinae in family Atelidae or have its own family Pitheciidae. The cladistic groupings of extant ceboids were also examined by different stochastic evolutionary models that employed the same stochastic process of nucleotide substitutions but alternative putative phylogenetic trees on which the nucleotide substitutions occurred. Each model, i.e., each different tree, predicted a different multinomial distribution of nucleotide character patterns for the contemporary sequences. The predicted distributions that were closest to the actual observed distributions identified the best fitting trees. The cladistic relationships depicted in these best fitting trees agreed in almost all cases with those depicted in the maximum parsimony trees. © 1996 Wiley-Liss, Inc.
-
DNA Evidence on the Phylogenetic Systematics of New World Monkeys: Support for the Sister-Grouping of Cebus and Saimiri from Two Unlinked Nuclear Genes
Molecular Phylogenetics and Evolution, 1995Co-Authors: M.l. Harada, John Czelusniak, Harald Schneider, Iracilda Sampaio, Maria Paula Cruz Schneider, Morris GoodmanAbstract:Abstract Previous inferences from ϵ-globin gene sequences on cladistic relationships among the 16 extant genera of Ceboidea (the New World monkeys) were tested by strength of grouping and bootstrap values for the clades in the most parsimonious trees found: for this epsilon data set enlarged with additional Cebus and Saimiri orthologues; for another nuclear DNA sequence data set consisting of IRBP (interstitial retinol-binding protein gene) intron 1 orthologues; and for tandemly combined epsilon and IRBP sequences. Different ceboid species of the same genus always grouped strongly together as demonstrated by results on Cebus (capuchin monkeys), Saimiri (squirrel monkeys), Callicebus (titi monkeys), Aotus (night monkeys), Ateles (spider monkeys), and Alouatta (howler monkeys). Other strong groupings that could be represented as monophyletic taxa in a cladistic classification were: Cebuella (pygmy marmoset) and Callithrix (marmoset) into subtribe Callitrichina; Callitrichina, Callimico (Goeldi′s monkey), Leontopithecus (lion tamarin), and Saguinus (tamarin) into subfamily Callitrichinae; Callitrichinae, Aotus , Cebus , and Saimiri into family Cebidae; Cacajao (uakari monkey) and Chiropotes (saki) into subtribe Chiropotina; Chiropotina and Pithecia (bearded saki) into tribe Pitheciini; Pitheciini and Callicebus into subfamily Pitheciinae; Brachyteles (woolly spider monkey), Lagothrix (woolly monkey), and Ateles into tribe Atelini; and Atelini and Alouatta into subfamily Atelinae. In addition the ϵ and IRBP results congruently grouped (but at lesser strengths) Brachyteles and Lagothrix into subtribe Brachytelina within Atelini, and also Cebus and Saimiri into subfamily Cebinae within Cebidae. Because the IRBP results weakly grouped Pitheciinae with Cebidae, whereas the epsilon results weakly grouped Pitheciinae with Atelinae, the present evidence is best represented in an interim cladistic classification of ceboids by dividing the superfamily Ceboidea into three families: Atelidae, Pitheciidae, and Cebidae.
Iracilda Sampaio - One of the best experts on this subject based on the ideXlab platform.
-
Molecular data highlight hybridization in squirrel monkeys (Saimiri, Cebidae)
Genetics and Molecular Biology, 2016Co-Authors: Jeferson Carneiro, Horacio Schneider, Luis Fernando Da Silva Rodrigues-filho, Iracilda SampaioAbstract:Hybridization has been reported increasingly frequently in recent years, fueling the debate on its role in the evolutionary history of species. Some studies have shown that hybridization is very common in captive New World primates, and hybrid offspring have phenotypes and physiological responses distinct from those of the "pure" parents, due to gene introgression. Here we used the TA15 Alu insertion to investigate hybridization in the genus Saimiri. Our results indicate the hybridization of Saimiri boliviensis peruviensis with S. sciureus macrodon, and S. b. boliviensis with S. ustus. Unexpectedly, some hybrids of both S. boliviensis peruviensis and S. b. boliviensis were homozygous for the absence of the insertion, which indicates that the hybrids were fertile.
-
Alu elements and the phylogeny of capuchin (Cebus and Sapajus) monkeys.
American Journal of Primatology, 2014Co-Authors: Antonio M.g. Martins, Nadia Amorim, Paulo Roberto Antunes De Mello Affonso, Iracilda Sampaio, Jeferson Carneiro, Horacio SchneiderAbstract:Three families of New World monkeys, the Pitheciidae, Atelidae, and Cebidae, are currently recognized. The monophyly of the Cebidae is supported unequivocally by the presence of ten unique Alu elements, which are absent from the other two families. In this paper, the five genomic regions containing these Alu elements were sequenced in specimens representing nine capuchin (Cebus, Sapajus) species in order to identify mutations that may help elucidate the taxonomy and phylogenetic relationships of the cebids. The results confirmed the presence of previously described Alu elements in the capuchins. An Alu insertion present in the Cebidae2 genomic region belonging to the AluSc subfamily was amplified and sequenced only in Sapajus. No amplified or unspecific product was obtained for all other species studied here. An AluSc insertion present in the CeSa1 region was found only in Cebus, Sapajus, and Saimiri. Cebidae4 was characterized by two insertions, an AluSz6 shared by all cebids, and a complete SINE (AluSx3) found only in the capuchins (Cebus and Sapajus). The genomic region Cebidae5 revealed two insertion events, one of the AluSx subfamily, which was shared by all cebids, and another (AluSc8), that was unique to Cebus, offering a straightforward criterion for the differentiation of the two genera, Cebus and Sapajus. The Cebidae6 region showed four distinct insertion events: a 52-bp simple repeat ((TATG) n), two very ancient repeats (MIRc) and a TcMar-Tigger shared by all New World monkeys studied so far, and an Alu insertion of the AluSx subfamily present exclusively in the cebids. The phylogenetic tree confirmed the division of the capuchins into two genera, Cebus and Sapajus, and suggested the southern species Sapajus nigritus robustus and S. cay as the earliest and second earliest offshoots in this genus, respectively. This supports a southern origin for the Sapajus radiation. Am. J. Primatol. 77:368–375, 2015. © 2014 Wiley Periodicals, Inc.
-
Alu elements and the phylogeny of capuchin (Cebus and Sapajus) monkeys.
American Journal of Primatology, 2014Co-Authors: Antonio M.g. Martins, Nadia Amorim, Paulo Roberto Antunes De Mello Affonso, Iracilda Sampaio, Jeferson Carneiro, Horacio SchneiderAbstract:Three families of New World monkeys, the Pitheciidae, Atelidae, and Cebidae, are currently recognized. The monophyly of the Cebidae is supported unequivocally by the presence of ten unique Alu elements, which are absent from the other two families. In this paper, the five genomic regions containing these Alu elements were sequenced in specimens representing nine capuchin (Cebus, Sapajus) species in order to identify mutations that may help elucidate the taxonomy and phylogenetic relationships of the cebids. The results confirmed the presence of previously described Alu elements in the capuchins. An Alu insertion present in the Cebidae2 genomic region belonging to the AluSc subfamily was amplified and sequenced only in Sapajus. No amplified or unspecific product was obtained for all other species studied here. An AluSc insertion present in the CeSa1 region was found only in Cebus, Sapajus, and Saimiri. Cebidae4 was characterized by two insertions, an AluSz6 shared by all cebids, and a complete SINE (AluSx3) found only in the capuchins (Cebus and Sapajus). The genomic region Cebidae5 revealed two insertion events, one of the AluSx subfamily, which was shared by all cebids, and another (AluSc8), that was unique to Cebus, offering a straightforward criterion for the differentiation of the two genera, Cebus and Sapajus. The Cebidae6 region showed four distinct insertion events: a 52-bp simple repeat ((TATG) n), two very ancient repeats (MIRc) and a TcMar-Tigger shared by all New World monkeys studied so far, and an Alu insertion of the AluSx subfamily present exclusively in the cebids. The phylogenetic tree confirmed the division of the capuchins into two genera, Cebus and Sapajus, and suggested the southern species Sapajus nigritus robustus and S. cay as the earliest and second earliest offshoots in this genus, respectively. This supports a southern origin for the Sapajus radiation. Am. J. Primatol. 77:368–375, 2015. © 2014 Wiley Periodicals, Inc.
-
RESEARCH ARTICLE Alu Elements and the Phylogeny of Capuchin (Cebus and Sapajus) Monkeys
2014Co-Authors: Nadia Amorim, Iracilda Sampaio, Jeferson Carneiro, Horacio SchneiderAbstract:Three families of New World monkeys, the Pitheciidae, Atelidae, and Cebidae, are currently recognized. The monophyly of the Cebidae is supported unequivocally by the presence of ten unique Alu elements, which are absent from the other two families. In this paper, the five genomic regions containing these Alu elements were sequenced in specimens representing nine capuchin (Cebus, Sapajus) species in order to identify mutations that may help elucidate the taxonomy and phylogenetic relationships of the cebids. The results confirmed the presence of previously described Alu elements in the capuchins. An Alu insertion present in the Cebidae2 genomic region belonging to the AluSc subfamily was amplified and sequenced only in Sapajus. No amplified or unspecific product was obtained for all other species studied here. An AluSc insertion present in the CeSa1 region was found only in Cebus, Sapajus, and Saimiri. Cebidae4 was characterized by two insertions, an AluSz6 shared by all cebids, and a complete SINE (AluSx3) found only in the capuchins (Cebus and Sapajus). The genomic region Cebidae5 revealed two insertion events, one of the AluSx subfamily, which was shared by all cebids, and another (AluSc8), that was unique to Cebus, offering a straightforward criterion for the differentiation of the two genera, Cebus and Sapajus. The Cebidae6 region showed four distinct insertion events: a 52-bp simple repeat ((TATG) n), two very ancient repeats (MIRc) and a TcMar-Tigger shared by all New World monkeys studied so far, and an Alu insertion of the AluSx subfamily present exclusively in the cebids. The phylogenetic tree confirmed the division of the capuchins into two genera, Cebus and Sapajus, and suggested the southern species Sapajus nigritus robustus and S. cay as the earliest and second earliest offshoots in this genus, respectively. This supports a southern origin for the Sapajus radiation. Am. J. Primatol. © 2014 Wiley Periodicals, Inc.
-
Can molecular data place each neotropical monkey in its own branch
Chromosoma, 2001Co-Authors: Horacio Schneider, Iracilda Sampaio, Flavio Canavez, Miguel Ângelo Martins Moreira, Claudia Helena Tagliaro, Héctor N. SeuánezAbstract:Four different DNA datasets, representative of all extant neotropical primate genera, were tandemly aligned, comprising some 6,763 base pairs (bp) with 2,086 variable characters and 674 informative sites. Maximum Parsimony, Maximum Likelihood and Neighbor-Joining analyses suggested three monophyletic families (Atelidae, Pitheciidae and Cebidae) that emerged almost at the same time during primate radiation. Combined molecular data showed congruent branching inside the atelid clade, placing Alouatta as the most basal lineage followed by Ateles and a more derived branch including Brachyteles and Lagothrix as sister groups. In the Pitheciidae, Callicebus was the most basal lineage with respect to Pithecia and to the more derived sister groups (Cacajao and Chiropotes). Conjoint analysis strongly supported the monophyly of the Cebidae, grouping Aotus, Cebus and Saimiri with the small callitrichines. Within callitrichines, Cebuella merged with Callithrix, Callimico appeared as a sister group of Callithrix/Cebuella, Leontopitecus as a sister group of the previous clade, and Saguinus was the earliest callitrichine offshoot. Two major points remained to be clarified in platyrrhine phylogeny: (i) the exact branching pattern of Aotus, Cebus, Saimiri and the callitrichines, and (ii), which two of these three families (Atelidae, Pitheciidae and Cebidae) are more closely related to one another.
Francesca Bigoni - One of the best experts on this subject based on the ideXlab platform.
-
Phylogenomics of species from four genera of New World monkeys by flow sorting and reciprocal chromosome painting.
BMC evolutionary biology, 2007Co-Authors: Francesca Dumas, Roscoe Stanyon, Luca Sineo, Gary Stone, Francesca BigoniAbstract:The taxonomic and phylogenetic relationships of New World monkeys (Platyrrhini) are difficult to distinguish on the basis of morphology and because diagnostic fossils are rare. Recently, molecular data have led to a radical revision of the traditional taxonomy and phylogeny of these primates. Here we examine new hypotheses of platyrrhine evolutionary relationships by reciprocal chromosome painting after chromosome flow sorting of species belonging to four genera of platyrrhines included in the Cebidae family: Callithrix argentata (silvered-marmoset), Cebuella pygmaea (pygmy marmoset), Callimico goeldii (Goeldi's marmoset) and Saimiri sciureus (squirrel monkey). This is the first report of reciprocal painting in marmosets. The paints made from chromosome flow sorting of the four platyrrhine monkeys provided from 42 to 45 hybridization signals on human metaphases. The reciprocal painting of monkey probes on human chromosomes revealed that 21 breakpoints are common to all four studied species. There are only three additional breakpoints. A breakpoint on human chromosome 13 was found in Callithrix argentata, Cebuella pygmaea and Callimico goeldii, but not in Saimiri sciureus. There are two additional breakpoints on human chromosome 5: one is specific to squirrel monkeys, and the other to Goeldi's marmoset. The reciprocal painting results support the molecular genomic assemblage of Cebidae. We demonstrated that the five chromosome associations previously hypothesized to phylogenetically link tamarins and marmosets are homologous and represent derived chromosome rearrangements. Four of these derived homologous associations tightly nest Callimico goeldii with marmosets. One derived association 2/15 may place squirrel monkeys within the Cebidae assemblage. An apparently common breakpoint on chromosome 5q33 found in both Saimiri and Aotus nancymae could be evidence of a phylogenetic link between these species. Comparison with previous reports shows that many syntenic associations found in platyrrhines have the same breakpoints and are homologous, derived rearrangements showing that the New World monkeys are a closely related group of species. Our data support the hypothesis that the ancestral karyotype of the Platyrrhini has a diploid number of 2n = 54 and is almost identical to that found today in capuchin monkeys; congruent with a basal position of the Cebidae among platyrrhine families.
-
Phylogenomics of species from four genera of New World monkeys by flow sorting and reciprocal chromosome painting.
BMC Evolutionary Biology, 2007Co-Authors: Francesca Dumas, Roscoe Stanyon, Luca Sineo, Gary Stone, Francesca BigoniAbstract:Background The taxonomic and phylogenetic relationships of New World monkeys (Platyrrhini) are difficult to distinguish on the basis of morphology and because diagnostic fossils are rare. Recently, molecular data have led to a radical revision of the traditional taxonomy and phylogeny of these primates. Here we examine new hypotheses of platyrrhine evolutionary relationships by reciprocal chromosome painting after chromosome flow sorting of species belonging to four genera of platyrrhines included in the Cebidae family: Callithrix argentata (silvered-marmoset), Cebuella pygmaea (pygmy marmoset), Callimico goeldii (Goeldi's marmoset) and Saimiri sciureus (squirrel monkey). This is the first report of reciprocal painting in marmosets.
-
Phylogenomics of species from four genera of New World monkeys by flow sorting and reciprocal chromosome painting
BMC Evolutionary Biology, 2007Co-Authors: Francesca Dumas, Roscoe Stanyon, Luca Sineo, Gary Stone, Francesca BigoniAbstract:Background: The taxonomic and phylogenetic relationships of New World monkeys (Platyrrhini) are difficult to\ud distinguish on the basis of morphology and because diagnostic fossils are rare. Recently, molecular data have led to a\ud radical revision of the traditional taxonomy and phylogeny of these primates. Here we examine new hypotheses of\ud platyrrhine evolutionary relationships by reciprocal chromosome painting after chromosome flow sorting of species\ud belonging to four genera of platyrrhines included in the Cebidae family: Callithrix argentata (silvered-marmoset), Cebuella\ud pygmaea (pygmy marmoset), Callimico goeldii (Goeldi's marmoset) and Saimiri sciureus (squirrel monkey). This is the first\ud report of reciprocal painting in marmosets.\ud Results: The paints made from chromosome flow sorting of the four platyrrhine monkeys provided from 42 to 45\ud hybridization signals on human metaphases. The reciprocal painting of monkey probes on human chromosomes revealed\ud that 21 breakpoints are common to all four studied species. There are only three additional breakpoints. A breakpoint\ud on human chromosome 13 was found in Callithrix argentata, Cebuella pygmaea and Callimico goeldii, but not in Saimiri\ud sciureus. There are two additional breakpoints on human chromosome 5: one is specific to squirrel monkeys, and the\ud other to Goeldi's marmoset.\ud Conclusion: The reciprocal painting results support the molecular genomic assemblage of Cebidae. We demonstrated\ud that the five chromosome associations previously hypothesized to phylogenetically link tamarins and marmosets are\ud homologous and represent derived chromosome rearrangements. Four of these derived homologous associations tightly\ud nest Callimico goeldii with marmosets. One derived association 2/15 may place squirrel monkeys within the Cebidae\ud assemblage. An apparently common breakpoint on chromosome 5q33 found in both Saimiri and Aotus nancymae could be\ud evidence of a phylogenetic link between these species. Comparison with previous reports shows that many syntenic\ud associations found in platyrrhines have the same breakpoints and are homologous, derived rearrangements showing that\ud the New World monkeys are a closely related group of species. Our data support the hypothesis that the ancestral\ud karyotype of the Platyrrhini has a diploid number of 2n = 54 and is almost identical to that found today in capuchin\ud monkeys; congruent with a basal position of the Cebidae among platyrrhine families
Horacio Schneider - One of the best experts on this subject based on the ideXlab platform.
-
Molecular data highlight hybridization in squirrel monkeys (Saimiri, Cebidae)
Genetics and Molecular Biology, 2016Co-Authors: Jeferson Carneiro, Horacio Schneider, Luis Fernando Da Silva Rodrigues-filho, Iracilda SampaioAbstract:Hybridization has been reported increasingly frequently in recent years, fueling the debate on its role in the evolutionary history of species. Some studies have shown that hybridization is very common in captive New World primates, and hybrid offspring have phenotypes and physiological responses distinct from those of the "pure" parents, due to gene introgression. Here we used the TA15 Alu insertion to investigate hybridization in the genus Saimiri. Our results indicate the hybridization of Saimiri boliviensis peruviensis with S. sciureus macrodon, and S. b. boliviensis with S. ustus. Unexpectedly, some hybrids of both S. boliviensis peruviensis and S. b. boliviensis were homozygous for the absence of the insertion, which indicates that the hybrids were fertile.
-
Alu elements and the phylogeny of capuchin (Cebus and Sapajus) monkeys.
American Journal of Primatology, 2014Co-Authors: Antonio M.g. Martins, Nadia Amorim, Paulo Roberto Antunes De Mello Affonso, Iracilda Sampaio, Jeferson Carneiro, Horacio SchneiderAbstract:Three families of New World monkeys, the Pitheciidae, Atelidae, and Cebidae, are currently recognized. The monophyly of the Cebidae is supported unequivocally by the presence of ten unique Alu elements, which are absent from the other two families. In this paper, the five genomic regions containing these Alu elements were sequenced in specimens representing nine capuchin (Cebus, Sapajus) species in order to identify mutations that may help elucidate the taxonomy and phylogenetic relationships of the cebids. The results confirmed the presence of previously described Alu elements in the capuchins. An Alu insertion present in the Cebidae2 genomic region belonging to the AluSc subfamily was amplified and sequenced only in Sapajus. No amplified or unspecific product was obtained for all other species studied here. An AluSc insertion present in the CeSa1 region was found only in Cebus, Sapajus, and Saimiri. Cebidae4 was characterized by two insertions, an AluSz6 shared by all cebids, and a complete SINE (AluSx3) found only in the capuchins (Cebus and Sapajus). The genomic region Cebidae5 revealed two insertion events, one of the AluSx subfamily, which was shared by all cebids, and another (AluSc8), that was unique to Cebus, offering a straightforward criterion for the differentiation of the two genera, Cebus and Sapajus. The Cebidae6 region showed four distinct insertion events: a 52-bp simple repeat ((TATG) n), two very ancient repeats (MIRc) and a TcMar-Tigger shared by all New World monkeys studied so far, and an Alu insertion of the AluSx subfamily present exclusively in the cebids. The phylogenetic tree confirmed the division of the capuchins into two genera, Cebus and Sapajus, and suggested the southern species Sapajus nigritus robustus and S. cay as the earliest and second earliest offshoots in this genus, respectively. This supports a southern origin for the Sapajus radiation. Am. J. Primatol. 77:368–375, 2015. © 2014 Wiley Periodicals, Inc.
-
Alu elements and the phylogeny of capuchin (Cebus and Sapajus) monkeys.
American Journal of Primatology, 2014Co-Authors: Antonio M.g. Martins, Nadia Amorim, Paulo Roberto Antunes De Mello Affonso, Iracilda Sampaio, Jeferson Carneiro, Horacio SchneiderAbstract:Three families of New World monkeys, the Pitheciidae, Atelidae, and Cebidae, are currently recognized. The monophyly of the Cebidae is supported unequivocally by the presence of ten unique Alu elements, which are absent from the other two families. In this paper, the five genomic regions containing these Alu elements were sequenced in specimens representing nine capuchin (Cebus, Sapajus) species in order to identify mutations that may help elucidate the taxonomy and phylogenetic relationships of the cebids. The results confirmed the presence of previously described Alu elements in the capuchins. An Alu insertion present in the Cebidae2 genomic region belonging to the AluSc subfamily was amplified and sequenced only in Sapajus. No amplified or unspecific product was obtained for all other species studied here. An AluSc insertion present in the CeSa1 region was found only in Cebus, Sapajus, and Saimiri. Cebidae4 was characterized by two insertions, an AluSz6 shared by all cebids, and a complete SINE (AluSx3) found only in the capuchins (Cebus and Sapajus). The genomic region Cebidae5 revealed two insertion events, one of the AluSx subfamily, which was shared by all cebids, and another (AluSc8), that was unique to Cebus, offering a straightforward criterion for the differentiation of the two genera, Cebus and Sapajus. The Cebidae6 region showed four distinct insertion events: a 52-bp simple repeat ((TATG) n), two very ancient repeats (MIRc) and a TcMar-Tigger shared by all New World monkeys studied so far, and an Alu insertion of the AluSx subfamily present exclusively in the cebids. The phylogenetic tree confirmed the division of the capuchins into two genera, Cebus and Sapajus, and suggested the southern species Sapajus nigritus robustus and S. cay as the earliest and second earliest offshoots in this genus, respectively. This supports a southern origin for the Sapajus radiation. Am. J. Primatol. 77:368–375, 2015. © 2014 Wiley Periodicals, Inc.
-
RESEARCH ARTICLE Alu Elements and the Phylogeny of Capuchin (Cebus and Sapajus) Monkeys
2014Co-Authors: Nadia Amorim, Iracilda Sampaio, Jeferson Carneiro, Horacio SchneiderAbstract:Three families of New World monkeys, the Pitheciidae, Atelidae, and Cebidae, are currently recognized. The monophyly of the Cebidae is supported unequivocally by the presence of ten unique Alu elements, which are absent from the other two families. In this paper, the five genomic regions containing these Alu elements were sequenced in specimens representing nine capuchin (Cebus, Sapajus) species in order to identify mutations that may help elucidate the taxonomy and phylogenetic relationships of the cebids. The results confirmed the presence of previously described Alu elements in the capuchins. An Alu insertion present in the Cebidae2 genomic region belonging to the AluSc subfamily was amplified and sequenced only in Sapajus. No amplified or unspecific product was obtained for all other species studied here. An AluSc insertion present in the CeSa1 region was found only in Cebus, Sapajus, and Saimiri. Cebidae4 was characterized by two insertions, an AluSz6 shared by all cebids, and a complete SINE (AluSx3) found only in the capuchins (Cebus and Sapajus). The genomic region Cebidae5 revealed two insertion events, one of the AluSx subfamily, which was shared by all cebids, and another (AluSc8), that was unique to Cebus, offering a straightforward criterion for the differentiation of the two genera, Cebus and Sapajus. The Cebidae6 region showed four distinct insertion events: a 52-bp simple repeat ((TATG) n), two very ancient repeats (MIRc) and a TcMar-Tigger shared by all New World monkeys studied so far, and an Alu insertion of the AluSx subfamily present exclusively in the cebids. The phylogenetic tree confirmed the division of the capuchins into two genera, Cebus and Sapajus, and suggested the southern species Sapajus nigritus robustus and S. cay as the earliest and second earliest offshoots in this genus, respectively. This supports a southern origin for the Sapajus radiation. Am. J. Primatol. © 2014 Wiley Periodicals, Inc.
-
Can molecular data place each neotropical monkey in its own branch
Chromosoma, 2001Co-Authors: Horacio Schneider, Iracilda Sampaio, Flavio Canavez, Miguel Ângelo Martins Moreira, Claudia Helena Tagliaro, Héctor N. SeuánezAbstract:Four different DNA datasets, representative of all extant neotropical primate genera, were tandemly aligned, comprising some 6,763 base pairs (bp) with 2,086 variable characters and 674 informative sites. Maximum Parsimony, Maximum Likelihood and Neighbor-Joining analyses suggested three monophyletic families (Atelidae, Pitheciidae and Cebidae) that emerged almost at the same time during primate radiation. Combined molecular data showed congruent branching inside the atelid clade, placing Alouatta as the most basal lineage followed by Ateles and a more derived branch including Brachyteles and Lagothrix as sister groups. In the Pitheciidae, Callicebus was the most basal lineage with respect to Pithecia and to the more derived sister groups (Cacajao and Chiropotes). Conjoint analysis strongly supported the monophyly of the Cebidae, grouping Aotus, Cebus and Saimiri with the small callitrichines. Within callitrichines, Cebuella merged with Callithrix, Callimico appeared as a sister group of Callithrix/Cebuella, Leontopitecus as a sister group of the previous clade, and Saguinus was the earliest callitrichine offshoot. Two major points remained to be clarified in platyrrhine phylogeny: (i) the exact branching pattern of Aotus, Cebus, Saimiri and the callitrichines, and (ii), which two of these three families (Atelidae, Pitheciidae and Cebidae) are more closely related to one another.
Francesca Dumas - One of the best experts on this subject based on the ideXlab platform.
-
Chromosomal distribution of interstitial telomeric sequences in nine neotropical primates (Platyrrhini): possible implications in evolution and phylogeny
Journal of Zoological Systematics and Evolutionary Research, 2016Co-Authors: Francesca Dumas, Helenia Cuttaia, Luca SineoAbstract:To localize interstitial telomeric sequences (ITSs) and to test whether their pattern of distribution could be linked to chromosomal evolution, we hybridized telomeric sequence probes (peptide nucleic acid, PNA) on metaphases of New World monkeys: Callithrix argentata, Callithrix jacchus, Cebuella pygmaea, Saguinus oedipus, Saimiri sciureus, Aotus lemurinus griseimembra, Aotus nancymaae (Cebidae), Lagothrix lagotricha (Atelidae) and Callicebus moloch (Pithecidae), characterized by a rapid radiation and a high rate of chromosomal rearrangements. Our analysis of the probe signal localization allowed us to show in all the species analysed, as normally, the telomeric location at the terminal ends of chromosomes and unexpected signal distributions in some species. Indeed, in three species among the nine studied, Aotus lemurinus griseimembra, Aotus nancymaae (Cebidae) and Lagothrix lagotricha (Atelidae), we showed a high variability in terms of localization and degree of amplification of interstitial telomeric sequences, especially for the ones found at centromeric or pericentromeric positions (het-ITS). A comparative analysis, between species, of homologous chromosomes to human syntenies, on which we have found positive interspersed PNA signals, allowed us to explain the observed pattern of ITS distribution as results of chromosomal rearrangements in the neotropical primates analysed. This evidence permitted us to discuss the possible implication of ITSs as phylogenetic markers for closely related species. Moreover, reviewing previous literature data of ITSs distribution in Primates and in the light of our results, we suggest an underestimation of ITSs and highlight the importance of the molecular cytogenetics approach in characterizing ITSs, which role is still not clarified. Riassunto La distribuzione delle sequenze telomeriche intersperse sui cromosomi di nove Platyrrhinae: possibili implicazioni evolutive e filogenetiche Al fine di localizzare le sequence telomeriche intersperse (ITS) e verificare se il loro pattern di distribuzione e ricollegabile all'evoluzione cromosomica sono state ibridate sonde telomeriche (TTAGGG)n sulle metafasi di specie Platyrrhinae caratterizzate da una rapida radiazione ed da un alto tasso di riarrangiamenti cromosomomici: Callithrix argentata, Callithrix jacchus, Cebuella pygmaea, Saguinus oedipus, Saimiri sciureus, Aotus lemurinus griseimembra, Aotus nancymaae (Cebidae), Lagothrix lagotricha (Atelidae), e Callicebus moloch (Pithecidae). L'analisi del segnale della sonda PNA mappato sui cromosomi ha permesso di dimostrare, in tutte le specie, come atteso, la normale localizzazione delle sequenze telomeriche sulle estremita terminali dei cromosomi e solo su alcune di esse, invece, una distribuzione peculiare delle sequenze telomeriche intersperse. Infatti in tre specie tra le nove analizzate Aotus lemurinus griseimembra, Aotus nancymaae (Cebidae), e Lagothrix lagotricha (Atelidae) e stata dimostrata un'alta variabilita nella distribuzione e nel grado di amplificazione delle ITS, in special modo per quelle riscontrate in regioni centro o pericentromeriche (het-ITS). L'analisi comparativa dei cromosomi delle specie in esame, omologhi alle sintenie cromosomiche umane, sui quali si sono riscontrati segnali della sonda PNA interspersi, ha permesso di spiegare il pattern di distribuzione delle ITS osservato come risultato di riarrangiamenti cromosomici verificatesi nel corso dell'evoluzione in Primates, in particolar modo in Platyrrhinae. Queste evidenze hanno inoltre permesso di discutere le possibili implicazioni delle ITS come marker filogenetici. In ultimo, da un'analisi dei dati presenti in letteratura sulla distribuzione delle ITS in Primates ed alla luce dei risultati ottenuti si ipotizza che gli ITS possano essere stati sottostimati e si evidenzia l'importanza dell'approccio citogenetico nello studio degli ITS, sequenze il cui ruolo e ancora poco conosciuto e che meriterebbe maggiori approfondimenti.
-
Phylogenomics of species from four genera of New World monkeys by flow sorting and reciprocal chromosome painting.
BMC evolutionary biology, 2007Co-Authors: Francesca Dumas, Roscoe Stanyon, Luca Sineo, Gary Stone, Francesca BigoniAbstract:The taxonomic and phylogenetic relationships of New World monkeys (Platyrrhini) are difficult to distinguish on the basis of morphology and because diagnostic fossils are rare. Recently, molecular data have led to a radical revision of the traditional taxonomy and phylogeny of these primates. Here we examine new hypotheses of platyrrhine evolutionary relationships by reciprocal chromosome painting after chromosome flow sorting of species belonging to four genera of platyrrhines included in the Cebidae family: Callithrix argentata (silvered-marmoset), Cebuella pygmaea (pygmy marmoset), Callimico goeldii (Goeldi's marmoset) and Saimiri sciureus (squirrel monkey). This is the first report of reciprocal painting in marmosets. The paints made from chromosome flow sorting of the four platyrrhine monkeys provided from 42 to 45 hybridization signals on human metaphases. The reciprocal painting of monkey probes on human chromosomes revealed that 21 breakpoints are common to all four studied species. There are only three additional breakpoints. A breakpoint on human chromosome 13 was found in Callithrix argentata, Cebuella pygmaea and Callimico goeldii, but not in Saimiri sciureus. There are two additional breakpoints on human chromosome 5: one is specific to squirrel monkeys, and the other to Goeldi's marmoset. The reciprocal painting results support the molecular genomic assemblage of Cebidae. We demonstrated that the five chromosome associations previously hypothesized to phylogenetically link tamarins and marmosets are homologous and represent derived chromosome rearrangements. Four of these derived homologous associations tightly nest Callimico goeldii with marmosets. One derived association 2/15 may place squirrel monkeys within the Cebidae assemblage. An apparently common breakpoint on chromosome 5q33 found in both Saimiri and Aotus nancymae could be evidence of a phylogenetic link between these species. Comparison with previous reports shows that many syntenic associations found in platyrrhines have the same breakpoints and are homologous, derived rearrangements showing that the New World monkeys are a closely related group of species. Our data support the hypothesis that the ancestral karyotype of the Platyrrhini has a diploid number of 2n = 54 and is almost identical to that found today in capuchin monkeys; congruent with a basal position of the Cebidae among platyrrhine families.
-
Phylogenomics of species from four genera of New World monkeys by flow sorting and reciprocal chromosome painting.
BMC Evolutionary Biology, 2007Co-Authors: Francesca Dumas, Roscoe Stanyon, Luca Sineo, Gary Stone, Francesca BigoniAbstract:Background The taxonomic and phylogenetic relationships of New World monkeys (Platyrrhini) are difficult to distinguish on the basis of morphology and because diagnostic fossils are rare. Recently, molecular data have led to a radical revision of the traditional taxonomy and phylogeny of these primates. Here we examine new hypotheses of platyrrhine evolutionary relationships by reciprocal chromosome painting after chromosome flow sorting of species belonging to four genera of platyrrhines included in the Cebidae family: Callithrix argentata (silvered-marmoset), Cebuella pygmaea (pygmy marmoset), Callimico goeldii (Goeldi's marmoset) and Saimiri sciureus (squirrel monkey). This is the first report of reciprocal painting in marmosets.
-
Phylogenomics of species from four genera of New World monkeys by flow sorting and reciprocal chromosome painting
BMC Evolutionary Biology, 2007Co-Authors: Francesca Dumas, Roscoe Stanyon, Luca Sineo, Gary Stone, Francesca BigoniAbstract:Background: The taxonomic and phylogenetic relationships of New World monkeys (Platyrrhini) are difficult to\ud distinguish on the basis of morphology and because diagnostic fossils are rare. Recently, molecular data have led to a\ud radical revision of the traditional taxonomy and phylogeny of these primates. Here we examine new hypotheses of\ud platyrrhine evolutionary relationships by reciprocal chromosome painting after chromosome flow sorting of species\ud belonging to four genera of platyrrhines included in the Cebidae family: Callithrix argentata (silvered-marmoset), Cebuella\ud pygmaea (pygmy marmoset), Callimico goeldii (Goeldi's marmoset) and Saimiri sciureus (squirrel monkey). This is the first\ud report of reciprocal painting in marmosets.\ud Results: The paints made from chromosome flow sorting of the four platyrrhine monkeys provided from 42 to 45\ud hybridization signals on human metaphases. The reciprocal painting of monkey probes on human chromosomes revealed\ud that 21 breakpoints are common to all four studied species. There are only three additional breakpoints. A breakpoint\ud on human chromosome 13 was found in Callithrix argentata, Cebuella pygmaea and Callimico goeldii, but not in Saimiri\ud sciureus. There are two additional breakpoints on human chromosome 5: one is specific to squirrel monkeys, and the\ud other to Goeldi's marmoset.\ud Conclusion: The reciprocal painting results support the molecular genomic assemblage of Cebidae. We demonstrated\ud that the five chromosome associations previously hypothesized to phylogenetically link tamarins and marmosets are\ud homologous and represent derived chromosome rearrangements. Four of these derived homologous associations tightly\ud nest Callimico goeldii with marmosets. One derived association 2/15 may place squirrel monkeys within the Cebidae\ud assemblage. An apparently common breakpoint on chromosome 5q33 found in both Saimiri and Aotus nancymae could be\ud evidence of a phylogenetic link between these species. Comparison with previous reports shows that many syntenic\ud associations found in platyrrhines have the same breakpoints and are homologous, derived rearrangements showing that\ud the New World monkeys are a closely related group of species. Our data support the hypothesis that the ancestral\ud karyotype of the Platyrrhini has a diploid number of 2n = 54 and is almost identical to that found today in capuchin\ud monkeys; congruent with a basal position of the Cebidae among platyrrhine families