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Satoshi D Ohdachi - One of the best experts on this subject based on the ideXlab platform.
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molecular phylogenetics of shrews mammalia Soricidae reveal timing of transcontinental colonizations
Molecular Phylogenetics and Evolution, 2007Co-Authors: Sylvain Dubey, Satoshi D Ohdachi, Nicolas Salamin, Patrick Barriere, Peter VogelAbstract:We sequenced 2167 base pairs (bp) of mitochondrial DNA cytochrome b and 16S, and 1390 bp of nuclear genes BRCA1 and ApoB in shrews taxa (Eulipotyphla, family Soricidae). The aim was to study the relationships at higher taxonomic levels within this family, and in particular the position of difficult clades such as Anourosorex and Myosorex. The data confirmed two monophyletic subfamilies, Soricinae and Crocidurinae. In the former, the tribes Anourosoricini, Blarinini, Nectogalini, Notiosoricini, and Soricini were supported. The latter was formed by the tribes Myosoricini and Crocidurini. The genus Suncus appeared to be paraphyletic and included Sylvisorex. We further suggest a biogeographical hypothesis, which shows that North America was colonized by three independent lineages of Soricinae during middle Miocene. Our hypothesis is congruent with the first fossil records for these taxa. Using molecular dating, the first exchanges between Africa and Eurasia occurred during the middle Miocene. The last one took place in the Late Miocene, with the dispersion of the genus Crocidura through the old world.
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molecular phylogenetics of soricid shrews mammalia based on mitochondrial cytochrome b gene sequences with special reference to the soricinae
Journal of Zoology, 2006Co-Authors: Satoshi D Ohdachi, Peter Vogel, M Hasegawa, Masahiro A Iwasa, Tatsuo OshidaAbstract:Molecular phylogeny of soricid shrews (Soricidae, Eulipotyphla, Mammalia) based on 1140 bp mitochondrial cytochrome b gene (cytb) sequences was inferred by the maximum likelihood (ML) method. All 13 genera of extant Soricinae and two genera of Crocidurinae were included in the analyses. Anourosorex was phylogenetically distant from the main groupings within Soricinae and Crocidurinae in the ML tree. Thus, it could not be determined to which subfamily Anourosorex should be assigned: Soricinae, Crocidurinae or a new subfamily. Soricinae (excluding Anourosorex) should be divided into four tribes: Neomyini, Notiosoricini, Soricini and Blarinini. However, monophyly of Blarinini was not robust in the present data set. Also, branching orders among tribes of Soricinae and those among genera of Neomyini could not be determined because of insufficient phylogenetic information of the cytb sequences. For water shrews of Neomyini (Chimarrogale, Nectogale and Neomys), monophyly of Neomys and the Chimarrogale–Nectogale group could not be verified, which implies the possibility of multiple origins for the semi-aquatic mode of living among taxa within Neomyini. Episoriculus may contain several separate genera. Blarinella was included in Blarinini not Soricini, based on the cytb sequences, but the confidence level was rather low; hence more phylogenetic information is needed to determine its phylogenetic position. Furthermore, some specific problems of taxonomy of soricid shrews were clarified, for example phylogeny of local populations of Notiosorex crawfordi, Chimarrogale himalayica and Crocidura attenuata.
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a new primer set for sex identification in the genus sorex Soricidae insectivora
Molecular Ecology Notes, 2001Co-Authors: Kazumi Matsubara, Yasuyuki Ishibashi, Satoshi D Ohdachi, Y MatsudaAbstract:In order to develop a new accurate method for sexing in Sorex species (Soricidae, Insectivora), we synthesized a polymerase chain reaction (PCR) primer set to amplify a part of Sry HMG box in the long-clawed shrew, Sorex unguiculatus. When the primers were applied to the samples of known sex, PCR products were successfully obtained for males as a clear, single band on 3% agarose gels after electrophoresis in Sorex unguiculatus and five other Sorex species, but not for females of these six species. Thus, PCR amplification using the primer set may be applicable to discern sex in the six Sorex species.
Hans De Bruijn - One of the best experts on this subject based on the ideXlab platform.
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insectivores and marsupials from the upper oligocene of banovici bosnia and herzegovina
Journal of Vertebrate Paleontology, 2017Co-Authors: Roos Van Glabbeek, Zoran Marković, Wilma Wessels, Hans De BruijnAbstract:ABSTRACTThe insectivore and marsupial assemblage from the Banovici Basin (MP30/MN1, Bosnia and Herzegovina) provides, in addition to the Rodentia, a better understanding of the faunal exchange between Europe and Anatolia and the biostratigraphic, paleoecological, and paleobiogeographic interpretations of the area. The small and rather poorly preserved collection of fossil remains of insectivores and marsupials from Banovici includes three genera of Talpidae, three genera of Soricidae, one genus of Erinaceidae, one genus of HeteroSoricidae, and one marsupial. At the genus level, this assemblage is a mix of genera known from the late Oligocene–early Miocene of Europe (MP29–MN3) and Anatolia (∼MP30–MN3). The presence of the talpids Suleimania aff. ruemkae and Desmanodon aff. ziegleri indicates an age within the Oligocene/Miocene boundary interval (MP30/MN1), which is consonant with the age estimate based on the rodents and magnetostratigraphy. The diversity of Soricidae and the presence of Geotrypus indicate...
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Insectivores and marsupials from the upper Oligocene of Banovići (Bosnia and Herzegovina)
Journal of Vertebrate Paleontology, 2017Co-Authors: Roos Van Glabbeek, Zoran Marković, Wilma Wessels, Hans De BruijnAbstract:ABSTRACTThe insectivore and marsupial assemblage from the Banovici Basin (MP30/MN1, Bosnia and Herzegovina) provides, in addition to the Rodentia, a better understanding of the faunal exchange between Europe and Anatolia and the biostratigraphic, paleoecological, and paleobiogeographic interpretations of the area. The small and rather poorly preserved collection of fossil remains of insectivores and marsupials from Banovici includes three genera of Talpidae, three genera of Soricidae, one genus of Erinaceidae, one genus of HeteroSoricidae, and one marsupial. At the genus level, this assemblage is a mix of genera known from the late Oligocene–early Miocene of Europe (MP29–MN3) and Anatolia (∼MP30–MN3). The presence of the talpids Suleimania aff. ruemkae and Desmanodon aff. ziegleri indicates an age within the Oligocene/Miocene boundary interval (MP30/MN1), which is consonant with the age estimate based on the rodents and magnetostratigraphy. The diversity of Soricidae and the presence of Geotrypus indicate...
José Manuel López - One of the best experts on this subject based on the ideXlab platform.
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A re-evaluation of the taphonomic methodology for the study of small mammal fossil assemblages of South America
Quaternary Science Reviews, 2017Co-Authors: Fernando J. Fernández, Claudia I. Montalvo, Yolanda Fernández-jalvo, Peter Andrews, José Manuel LópezAbstract:Abstract The taphonomic methodology for the study of small mammal fossil was based mainly on actualistic studies of bones and teeth of insectivores (Soricidae, Talpidae, Erinaceidae) and rodents (Arvicolinae, Muridae) recovered from pellets of birds of prey and scats of carnivorous mammals from different places of North America, Europe and Africa. The digestive corrosion patterns on teeth of the South American rodents Sigmodontinae, Caviinae, Ctenomyidae and Abrocomidae, and the marsupials Monodelphini of central Argentina were observed. The comparison between the South American samples with the North American, African and European samples allowed us to establish similarities and differences in the digestive corrosion of the teeth. The main agreements have been recorded in the following groups: Arvicolinae with Caviinae and Abrocomidae; Murinae with Sigmodontinae; Soricidae, Talpidae and Erinaceidae with Monodelphini. However, the particular and simplified configuration of the molars of Ctenomyidae with thicker enamel and dentine exposed has promoted a new description of the categories of digestive corrosion. Likewise Muridae and Sigmodontinae molars, Ctenomyidae presents a delay in the appearance of signs of digestion with regard to other caviomorphs (Caviinae, Abrocomidae). This contribution may, therefore, be useful to know the origin of these South American faunas and the exact taphonomic agent that produced these assemblages. Finally, small mammal samples from an archaeo-palaeontological site from Northwestern Patagonia, Argentina, were studied in order to apply the new methodology emerged from the recent samples.
Peter Vogel - One of the best experts on this subject based on the ideXlab platform.
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molecular phylogenetics of shrews mammalia Soricidae reveal timing of transcontinental colonizations
Molecular Phylogenetics and Evolution, 2007Co-Authors: Sylvain Dubey, Satoshi D Ohdachi, Nicolas Salamin, Patrick Barriere, Peter VogelAbstract:We sequenced 2167 base pairs (bp) of mitochondrial DNA cytochrome b and 16S, and 1390 bp of nuclear genes BRCA1 and ApoB in shrews taxa (Eulipotyphla, family Soricidae). The aim was to study the relationships at higher taxonomic levels within this family, and in particular the position of difficult clades such as Anourosorex and Myosorex. The data confirmed two monophyletic subfamilies, Soricinae and Crocidurinae. In the former, the tribes Anourosoricini, Blarinini, Nectogalini, Notiosoricini, and Soricini were supported. The latter was formed by the tribes Myosoricini and Crocidurini. The genus Suncus appeared to be paraphyletic and included Sylvisorex. We further suggest a biogeographical hypothesis, which shows that North America was colonized by three independent lineages of Soricinae during middle Miocene. Our hypothesis is congruent with the first fossil records for these taxa. Using molecular dating, the first exchanges between Africa and Eurasia occurred during the middle Miocene. The last one took place in the Late Miocene, with the dispersion of the genus Crocidura through the old world.
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molecular phylogenetics of soricid shrews mammalia based on mitochondrial cytochrome b gene sequences with special reference to the soricinae
Journal of Zoology, 2006Co-Authors: Satoshi D Ohdachi, Peter Vogel, M Hasegawa, Masahiro A Iwasa, Tatsuo OshidaAbstract:Molecular phylogeny of soricid shrews (Soricidae, Eulipotyphla, Mammalia) based on 1140 bp mitochondrial cytochrome b gene (cytb) sequences was inferred by the maximum likelihood (ML) method. All 13 genera of extant Soricinae and two genera of Crocidurinae were included in the analyses. Anourosorex was phylogenetically distant from the main groupings within Soricinae and Crocidurinae in the ML tree. Thus, it could not be determined to which subfamily Anourosorex should be assigned: Soricinae, Crocidurinae or a new subfamily. Soricinae (excluding Anourosorex) should be divided into four tribes: Neomyini, Notiosoricini, Soricini and Blarinini. However, monophyly of Blarinini was not robust in the present data set. Also, branching orders among tribes of Soricinae and those among genera of Neomyini could not be determined because of insufficient phylogenetic information of the cytb sequences. For water shrews of Neomyini (Chimarrogale, Nectogale and Neomys), monophyly of Neomys and the Chimarrogale–Nectogale group could not be verified, which implies the possibility of multiple origins for the semi-aquatic mode of living among taxa within Neomyini. Episoriculus may contain several separate genera. Blarinella was included in Blarinini not Soricini, based on the cytb sequences, but the confidence level was rather low; hence more phylogenetic information is needed to determine its phylogenetic position. Furthermore, some specific problems of taxonomy of soricid shrews were clarified, for example phylogeny of local populations of Notiosorex crawfordi, Chimarrogale himalayica and Crocidura attenuata.
Roos Van Glabbeek - One of the best experts on this subject based on the ideXlab platform.
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insectivores and marsupials from the upper oligocene of banovici bosnia and herzegovina
Journal of Vertebrate Paleontology, 2017Co-Authors: Roos Van Glabbeek, Zoran Marković, Wilma Wessels, Hans De BruijnAbstract:ABSTRACTThe insectivore and marsupial assemblage from the Banovici Basin (MP30/MN1, Bosnia and Herzegovina) provides, in addition to the Rodentia, a better understanding of the faunal exchange between Europe and Anatolia and the biostratigraphic, paleoecological, and paleobiogeographic interpretations of the area. The small and rather poorly preserved collection of fossil remains of insectivores and marsupials from Banovici includes three genera of Talpidae, three genera of Soricidae, one genus of Erinaceidae, one genus of HeteroSoricidae, and one marsupial. At the genus level, this assemblage is a mix of genera known from the late Oligocene–early Miocene of Europe (MP29–MN3) and Anatolia (∼MP30–MN3). The presence of the talpids Suleimania aff. ruemkae and Desmanodon aff. ziegleri indicates an age within the Oligocene/Miocene boundary interval (MP30/MN1), which is consonant with the age estimate based on the rodents and magnetostratigraphy. The diversity of Soricidae and the presence of Geotrypus indicate...
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Insectivores and marsupials from the upper Oligocene of Banovići (Bosnia and Herzegovina)
Journal of Vertebrate Paleontology, 2017Co-Authors: Roos Van Glabbeek, Zoran Marković, Wilma Wessels, Hans De BruijnAbstract:ABSTRACTThe insectivore and marsupial assemblage from the Banovici Basin (MP30/MN1, Bosnia and Herzegovina) provides, in addition to the Rodentia, a better understanding of the faunal exchange between Europe and Anatolia and the biostratigraphic, paleoecological, and paleobiogeographic interpretations of the area. The small and rather poorly preserved collection of fossil remains of insectivores and marsupials from Banovici includes three genera of Talpidae, three genera of Soricidae, one genus of Erinaceidae, one genus of HeteroSoricidae, and one marsupial. At the genus level, this assemblage is a mix of genera known from the late Oligocene–early Miocene of Europe (MP29–MN3) and Anatolia (∼MP30–MN3). The presence of the talpids Suleimania aff. ruemkae and Desmanodon aff. ziegleri indicates an age within the Oligocene/Miocene boundary interval (MP30/MN1), which is consonant with the age estimate based on the rodents and magnetostratigraphy. The diversity of Soricidae and the presence of Geotrypus indicate...
