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Mark W Chase - One of the best experts on this subject based on the ideXlab platform.
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Andrachne cuneifolia (Phyllanthaceae; Euphorbiaceae s.l.) is a Phyllanthus
Botanical Journal of the Linnean Society, 2007Co-Authors: Maria S. Vorontsova, H. S. Kathriarachchi, Petra Hoffmann, Duane A Kolterman, Mark W ChaseAbstract:The phylogenetic relationships, morphology, and distribution of the enigmatic species Andrachne cuneifolia of problematic generic affiliation were examined. Nuclear internal transcribed spacer (ITS) and plastid matK sequences were analysed with a matrix of matK and ITS DNA sequences for Phyllanthus and Andrachne species. According to this analysis, this taxon belongs in the genus Phyllanthus, subgenus Xylophylla. Comparison of morphological characters also supports the placement of this species in Phyllanthus subgenus Xylophylla. The correct name is Phyllanthus cuneifolius (Britton) Croizat. A full description, illustration, conservation rating, and distribution map are provided. © 2007 The Linnean Society of London, Botanical Journal of the Linnean Society, 2007, 155, 519–525.
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Molecular phylogenetics of Phyllanthaceae inferred from five genes (plastid atpB, matK, 3'ndhF, rbcL, and nuclear PHYC).
Molecular phylogenetics and evolution, 2005Co-Authors: H. S. Kathriarachchi, Petra Hoffmann, Rosabelle Samuel, Kenneth J Wurdack, Mark W ChaseAbstract:Phyllanthaceae are a pantropical family of c. 2000 species for which circumscription is believed to be coincident with subfamily Phyllanthoideae of Euphorbiaceae sensu lato (Malpighiales) excluding Putranjivaceae. A phylogenetic study of the family using DNA sequence data has delivered largely congruent results from the plastid atpB, matK, ndhF, rbcL, and the nuclear PHYC. Our analyses include sampling from 54 of 59 genera, representing all tribes and subtribes of Phyllanthoideae. The family falls into two major clades characterized by inflorescence and leaf anatomical features. Several traditional taxonomic groupings were retrieved with minor modifications, but most clades recovered are considerably different from previous non-molecular based ideas of relationships. The enigmatic genus Dicoelia and the geographically disjunct genus Lingelsheimia are shown to be embedded in Phyllanthaceae. The taxonomic status of Leptopus diplospermus (=Chorisandrachne) and the debated placement of Andrachne ovalis have been clarified, and Protomegabaria and Richeriella are newly placed. Paraphyly of Cleistanthus and Phyllanthus is confirmed, having three and four other genera embedded, respectively. Petalodiscus is also paraphyletic, including all other Malagassian Wielandieae.
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Molecular phylogenetics of Phyllanthaceae: evidence from plastid MATK and nuclear PHYC sequences
American journal of botany, 2005Co-Authors: Rosabelle Samuel, H. S. Kathriarachchi, Petra Hoffmann, Kenneth J Wurdack, Michael H. J. Barfuss, Charles C. Davis, Mark W ChaseAbstract:Plastid matK and a fragment of the low-copy nuclear gene PHYC were sequenced for 30 genera of Phyllanthaceae to evaluate tribal and generic delimitation. Resolution and bootstrap percentages obtained with matK are higher than that of PHYC, but both regions show nearly identical phylogenetic patterns. Phylogenetic relationships inferred from the independent and combined data are congruent and differ from previous, morphology-based classifications but are highly concordant with those of the plastid gene rbcL previously published. Phyllanthaceae is monophyletic and gives rise to two well-resolved clades (T and F) that could be recognized as subfamilies. DNA sequence data for Keayodendron and Zimmermanniopsis are presented for the first time. Keayodendron is misplaced in tribe Phyllantheae and belongs to the Bridelia alliance. Zimmermanniopsis is sister to Zimmermannia. Phyllanthus and Cleistanthus are paraphyletic. Savia and Phyllanthus subgenus Kirganelia are not monophyletic.
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molecular phylogenetic analysis of Phyllanthaceae phyllanthoideae pro parte euphorbiaceae sensu lato using plastid rbcl dna sequences
American Journal of Botany, 2004Co-Authors: Kenneth J Wurdack, Petra Hoffmann, Rosabelle Samuel, Anette Y De Bruijn, Michelle Van Der Bank, Mark W ChaseAbstract:: Analysis of plastid rbcL DNA sequence data of the pantropical family Phyllanthaceae (Malpighiales) and related biovulate lineages of Euphorbiaceae sensu lato is presented. Sampling for this study includes representatives of all 10 tribes and 51 of the 60 genera attributed to Euphorbiaceae-Phyllanthoideae. Centroplacus and Putranjivaceae (Phyllanthoideae-Drypeteae) containing a paraphyletic Drypetes are excluded from Phyllanthaceae. Croizatia, previously thought to be a "basal" member of Euphorbiaceae-Oldfieldioideae (Picrodendraceae), falls within Phyllanthaceae. Phyllanthaceae with the mentioned adjustments form a monophyletic group consisting of two sister clades that mostly correspond to the distribution of tanniniferous leaf epidermal cells and inflorescence structure. With the exception of bigeneric Hymenocardieae and monotypic Bischofieae, none of the current Phyllanthoideae (Phyllanthaceae) tribal circumscriptions are supported by rbcL. Antidesma, Bischofia, Hymenocardia, Martretia, and Uapaca, all of which have previously been placed in monogeneric families, are confirmed as members of Phyllanthaceae. Savia is polyphyletic, and Cleistanthus appears paraphyletic. Paraphyly of Phyllanthus is also indicated, but this pattern lacks bootstrap support. Morphological characters are discussed and mapped for inflorescence structure, tanniniferous epidermal cells, breeding system, and fruit and embryo type. A table summarizes the main characters of six euphorbiaceous lineages.
Petra Hoffmann - One of the best experts on this subject based on the ideXlab platform.
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Taxonomic revision of Phyllanthus (Phyllanthaceae) in Madagascar and the Comoro Islands III: subgenera Swartziani, Afroswartziani and Emblica
Kew Bulletin, 2013Co-Authors: Hélène Ralimanana, Petra Hoffmann, Charlotte RajeriarisonAbstract:The third part of the revision of the genus Phyllanthus L. (Phyllanthaceae) in Madagascar and the Comoro Islands treats the subgenera Swartziani comb. & stat. nov., Afroswartziani subgen. nov. and Emblica . Taxonomic history of the subgenus Phyllanthus is given and its circumscription is revised. Phyllanthus subgenus Afroswartziani subgen. nov. comprises thirteen species. One species P. ankazobensis is described as new to science. P. vatovaviensis and P. madagascariensis var. kalambatitrensis are validly published by this paper. Identification keys, descriptions and species notes (habitat, distribution and threats) are provided. Distribution maps and IUCN conservation assessments are provided for all species and varieties.
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Revision of the genus Leptopus (Phyllanthaceae, Euphorbiaceae sensu lato)
Kew Bulletin, 2009Co-Authors: Maria S. Vorontsova, Petra HoffmannAbstract:Revision of the Asian genus Leptopus (Phyllanthaceae tribe Poranthereae) is presented recognising nine species. A key to species, full synonymy, typification, distribution maps and conservation assessments are provided. Eight new synonyms are made and ten lectotypes are chosen.
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Andrachne cuneifolia (Phyllanthaceae; Euphorbiaceae s.l.) is a Phyllanthus
Botanical Journal of the Linnean Society, 2007Co-Authors: Maria S. Vorontsova, H. S. Kathriarachchi, Petra Hoffmann, Duane A Kolterman, Mark W ChaseAbstract:The phylogenetic relationships, morphology, and distribution of the enigmatic species Andrachne cuneifolia of problematic generic affiliation were examined. Nuclear internal transcribed spacer (ITS) and plastid matK sequences were analysed with a matrix of matK and ITS DNA sequences for Phyllanthus and Andrachne species. According to this analysis, this taxon belongs in the genus Phyllanthus, subgenus Xylophylla. Comparison of morphological characters also supports the placement of this species in Phyllanthus subgenus Xylophylla. The correct name is Phyllanthus cuneifolius (Britton) Croizat. A full description, illustration, conservation rating, and distribution map are provided. © 2007 The Linnean Society of London, Botanical Journal of the Linnean Society, 2007, 155, 519–525.
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Molecular phylogenetics of Phyllanthaceae inferred from five genes (plastid atpB, matK, 3'ndhF, rbcL, and nuclear PHYC).
Molecular phylogenetics and evolution, 2005Co-Authors: H. S. Kathriarachchi, Petra Hoffmann, Rosabelle Samuel, Kenneth J Wurdack, Mark W ChaseAbstract:Phyllanthaceae are a pantropical family of c. 2000 species for which circumscription is believed to be coincident with subfamily Phyllanthoideae of Euphorbiaceae sensu lato (Malpighiales) excluding Putranjivaceae. A phylogenetic study of the family using DNA sequence data has delivered largely congruent results from the plastid atpB, matK, ndhF, rbcL, and the nuclear PHYC. Our analyses include sampling from 54 of 59 genera, representing all tribes and subtribes of Phyllanthoideae. The family falls into two major clades characterized by inflorescence and leaf anatomical features. Several traditional taxonomic groupings were retrieved with minor modifications, but most clades recovered are considerably different from previous non-molecular based ideas of relationships. The enigmatic genus Dicoelia and the geographically disjunct genus Lingelsheimia are shown to be embedded in Phyllanthaceae. The taxonomic status of Leptopus diplospermus (=Chorisandrachne) and the debated placement of Andrachne ovalis have been clarified, and Protomegabaria and Richeriella are newly placed. Paraphyly of Cleistanthus and Phyllanthus is confirmed, having three and four other genera embedded, respectively. Petalodiscus is also paraphyletic, including all other Malagassian Wielandieae.
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Molecular phylogenetics of Phyllanthaceae: evidence from plastid MATK and nuclear PHYC sequences
American journal of botany, 2005Co-Authors: Rosabelle Samuel, H. S. Kathriarachchi, Petra Hoffmann, Kenneth J Wurdack, Michael H. J. Barfuss, Charles C. Davis, Mark W ChaseAbstract:Plastid matK and a fragment of the low-copy nuclear gene PHYC were sequenced for 30 genera of Phyllanthaceae to evaluate tribal and generic delimitation. Resolution and bootstrap percentages obtained with matK are higher than that of PHYC, but both regions show nearly identical phylogenetic patterns. Phylogenetic relationships inferred from the independent and combined data are congruent and differ from previous, morphology-based classifications but are highly concordant with those of the plastid gene rbcL previously published. Phyllanthaceae is monophyletic and gives rise to two well-resolved clades (T and F) that could be recognized as subfamilies. DNA sequence data for Keayodendron and Zimmermanniopsis are presented for the first time. Keayodendron is misplaced in tribe Phyllantheae and belongs to the Bridelia alliance. Zimmermanniopsis is sister to Zimmermannia. Phyllanthus and Cleistanthus are paraphyletic. Savia and Phyllanthus subgenus Kirganelia are not monophyletic.
Kenneth J Wurdack - One of the best experts on this subject based on the ideXlab platform.
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Molecular phylogenetics of Phyllanthaceae inferred from five genes (plastid atpB, matK, 3'ndhF, rbcL, and nuclear PHYC).
Molecular phylogenetics and evolution, 2005Co-Authors: H. S. Kathriarachchi, Petra Hoffmann, Rosabelle Samuel, Kenneth J Wurdack, Mark W ChaseAbstract:Phyllanthaceae are a pantropical family of c. 2000 species for which circumscription is believed to be coincident with subfamily Phyllanthoideae of Euphorbiaceae sensu lato (Malpighiales) excluding Putranjivaceae. A phylogenetic study of the family using DNA sequence data has delivered largely congruent results from the plastid atpB, matK, ndhF, rbcL, and the nuclear PHYC. Our analyses include sampling from 54 of 59 genera, representing all tribes and subtribes of Phyllanthoideae. The family falls into two major clades characterized by inflorescence and leaf anatomical features. Several traditional taxonomic groupings were retrieved with minor modifications, but most clades recovered are considerably different from previous non-molecular based ideas of relationships. The enigmatic genus Dicoelia and the geographically disjunct genus Lingelsheimia are shown to be embedded in Phyllanthaceae. The taxonomic status of Leptopus diplospermus (=Chorisandrachne) and the debated placement of Andrachne ovalis have been clarified, and Protomegabaria and Richeriella are newly placed. Paraphyly of Cleistanthus and Phyllanthus is confirmed, having three and four other genera embedded, respectively. Petalodiscus is also paraphyletic, including all other Malagassian Wielandieae.
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Molecular phylogenetics of Phyllanthaceae: evidence from plastid MATK and nuclear PHYC sequences
American journal of botany, 2005Co-Authors: Rosabelle Samuel, H. S. Kathriarachchi, Petra Hoffmann, Kenneth J Wurdack, Michael H. J. Barfuss, Charles C. Davis, Mark W ChaseAbstract:Plastid matK and a fragment of the low-copy nuclear gene PHYC were sequenced for 30 genera of Phyllanthaceae to evaluate tribal and generic delimitation. Resolution and bootstrap percentages obtained with matK are higher than that of PHYC, but both regions show nearly identical phylogenetic patterns. Phylogenetic relationships inferred from the independent and combined data are congruent and differ from previous, morphology-based classifications but are highly concordant with those of the plastid gene rbcL previously published. Phyllanthaceae is monophyletic and gives rise to two well-resolved clades (T and F) that could be recognized as subfamilies. DNA sequence data for Keayodendron and Zimmermanniopsis are presented for the first time. Keayodendron is misplaced in tribe Phyllantheae and belongs to the Bridelia alliance. Zimmermanniopsis is sister to Zimmermannia. Phyllanthus and Cleistanthus are paraphyletic. Savia and Phyllanthus subgenus Kirganelia are not monophyletic.
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molecular phylogenetic analysis of Phyllanthaceae phyllanthoideae pro parte euphorbiaceae sensu lato using plastid rbcl dna sequences
American Journal of Botany, 2004Co-Authors: Kenneth J Wurdack, Petra Hoffmann, Rosabelle Samuel, Anette Y De Bruijn, Michelle Van Der Bank, Mark W ChaseAbstract:: Analysis of plastid rbcL DNA sequence data of the pantropical family Phyllanthaceae (Malpighiales) and related biovulate lineages of Euphorbiaceae sensu lato is presented. Sampling for this study includes representatives of all 10 tribes and 51 of the 60 genera attributed to Euphorbiaceae-Phyllanthoideae. Centroplacus and Putranjivaceae (Phyllanthoideae-Drypeteae) containing a paraphyletic Drypetes are excluded from Phyllanthaceae. Croizatia, previously thought to be a "basal" member of Euphorbiaceae-Oldfieldioideae (Picrodendraceae), falls within Phyllanthaceae. Phyllanthaceae with the mentioned adjustments form a monophyletic group consisting of two sister clades that mostly correspond to the distribution of tanniniferous leaf epidermal cells and inflorescence structure. With the exception of bigeneric Hymenocardieae and monotypic Bischofieae, none of the current Phyllanthoideae (Phyllanthaceae) tribal circumscriptions are supported by rbcL. Antidesma, Bischofia, Hymenocardia, Martretia, and Uapaca, all of which have previously been placed in monogeneric families, are confirmed as members of Phyllanthaceae. Savia is polyphyletic, and Cleistanthus appears paraphyletic. Paraphyly of Phyllanthus is also indicated, but this pattern lacks bootstrap support. Morphological characters are discussed and mapped for inflorescence structure, tanniniferous epidermal cells, breeding system, and fruit and embryo type. A table summarizes the main characters of six euphorbiaceous lineages.
Rosabelle Samuel - One of the best experts on this subject based on the ideXlab platform.
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Molecular phylogenetics of Phyllanthaceae inferred from five genes (plastid atpB, matK, 3'ndhF, rbcL, and nuclear PHYC).
Molecular phylogenetics and evolution, 2005Co-Authors: H. S. Kathriarachchi, Petra Hoffmann, Rosabelle Samuel, Kenneth J Wurdack, Mark W ChaseAbstract:Phyllanthaceae are a pantropical family of c. 2000 species for which circumscription is believed to be coincident with subfamily Phyllanthoideae of Euphorbiaceae sensu lato (Malpighiales) excluding Putranjivaceae. A phylogenetic study of the family using DNA sequence data has delivered largely congruent results from the plastid atpB, matK, ndhF, rbcL, and the nuclear PHYC. Our analyses include sampling from 54 of 59 genera, representing all tribes and subtribes of Phyllanthoideae. The family falls into two major clades characterized by inflorescence and leaf anatomical features. Several traditional taxonomic groupings were retrieved with minor modifications, but most clades recovered are considerably different from previous non-molecular based ideas of relationships. The enigmatic genus Dicoelia and the geographically disjunct genus Lingelsheimia are shown to be embedded in Phyllanthaceae. The taxonomic status of Leptopus diplospermus (=Chorisandrachne) and the debated placement of Andrachne ovalis have been clarified, and Protomegabaria and Richeriella are newly placed. Paraphyly of Cleistanthus and Phyllanthus is confirmed, having three and four other genera embedded, respectively. Petalodiscus is also paraphyletic, including all other Malagassian Wielandieae.
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Molecular phylogenetics of Phyllanthaceae: evidence from plastid MATK and nuclear PHYC sequences
American journal of botany, 2005Co-Authors: Rosabelle Samuel, H. S. Kathriarachchi, Petra Hoffmann, Kenneth J Wurdack, Michael H. J. Barfuss, Charles C. Davis, Mark W ChaseAbstract:Plastid matK and a fragment of the low-copy nuclear gene PHYC were sequenced for 30 genera of Phyllanthaceae to evaluate tribal and generic delimitation. Resolution and bootstrap percentages obtained with matK are higher than that of PHYC, but both regions show nearly identical phylogenetic patterns. Phylogenetic relationships inferred from the independent and combined data are congruent and differ from previous, morphology-based classifications but are highly concordant with those of the plastid gene rbcL previously published. Phyllanthaceae is monophyletic and gives rise to two well-resolved clades (T and F) that could be recognized as subfamilies. DNA sequence data for Keayodendron and Zimmermanniopsis are presented for the first time. Keayodendron is misplaced in tribe Phyllantheae and belongs to the Bridelia alliance. Zimmermanniopsis is sister to Zimmermannia. Phyllanthus and Cleistanthus are paraphyletic. Savia and Phyllanthus subgenus Kirganelia are not monophyletic.
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molecular phylogenetic analysis of Phyllanthaceae phyllanthoideae pro parte euphorbiaceae sensu lato using plastid rbcl dna sequences
American Journal of Botany, 2004Co-Authors: Kenneth J Wurdack, Petra Hoffmann, Rosabelle Samuel, Anette Y De Bruijn, Michelle Van Der Bank, Mark W ChaseAbstract:: Analysis of plastid rbcL DNA sequence data of the pantropical family Phyllanthaceae (Malpighiales) and related biovulate lineages of Euphorbiaceae sensu lato is presented. Sampling for this study includes representatives of all 10 tribes and 51 of the 60 genera attributed to Euphorbiaceae-Phyllanthoideae. Centroplacus and Putranjivaceae (Phyllanthoideae-Drypeteae) containing a paraphyletic Drypetes are excluded from Phyllanthaceae. Croizatia, previously thought to be a "basal" member of Euphorbiaceae-Oldfieldioideae (Picrodendraceae), falls within Phyllanthaceae. Phyllanthaceae with the mentioned adjustments form a monophyletic group consisting of two sister clades that mostly correspond to the distribution of tanniniferous leaf epidermal cells and inflorescence structure. With the exception of bigeneric Hymenocardieae and monotypic Bischofieae, none of the current Phyllanthoideae (Phyllanthaceae) tribal circumscriptions are supported by rbcL. Antidesma, Bischofia, Hymenocardia, Martretia, and Uapaca, all of which have previously been placed in monogeneric families, are confirmed as members of Phyllanthaceae. Savia is polyphyletic, and Cleistanthus appears paraphyletic. Paraphyly of Phyllanthus is also indicated, but this pattern lacks bootstrap support. Morphological characters are discussed and mapped for inflorescence structure, tanniniferous epidermal cells, breeding system, and fruit and embryo type. A table summarizes the main characters of six euphorbiaceous lineages.
Ionara I. Dalcol - One of the best experts on this subject based on the ideXlab platform.
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Evaluation of prolyl oligopeptidase and acetylcholinesterase inhibition by Phyllanthus tenellus Roxb. from Brazil.
Natural product research, 2019Co-Authors: Maura Z. Dos Santos, Janaína De Ávila, Ademir F. Morel, Thais S Canto-dorow, Marco A. Mostardeiro, Ionara I. DalcolAbstract:Phyllanthus tenellus Roxb. (Phyllanthaceae) is a plant used in Brazilian folk medicine for the treatment of intestinal infections and diabetes. Despite its use in traditional medicine, it was repor...