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Wei-jen Chen - One of the best experts on this subject based on the ideXlab platform.
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the world s smallest vertebrate species of the genus paedocypris a new family of freshwater fishes and the sister group to the world s most diverse clade of freshwater fishes teleostei cypriniformes
Molecular Phylogenetics and Evolution, 2010Co-Authors: Richard L. Mayden, Wei-jen ChenAbstract:The genus Paedocypris has only recently been discovered and described and includes three species, all of which are miniature species and one, P. progenetica, is the smallest vertebrate species. Two previous studies investigating relationships of Paedocypris, based on either cytochrome b or morphology, placed the genus with Sundadanio and Danionella, two genera with miniature species in the formerly recognized family Cyprinidae. Our investigation of the phylogenetic relationships of Paedocypris using six nuclear genes and a broad survey of taxa in major lineages of the Cypriniformes identifies Paedocypris as a monophyletic group and the basal sister group to all Cypriniformes, not a species of the formerly recognized family Cyprinidae. These new relationships are also supported by previously proposed morphological characters but reinterpreted relative to ontogenetic hypotheses and outgroup comparisons used to determine synapomorphies. Miniaturization has occurred independently multiple times in the order, but mostly in the Rasborine Clade. Consequently, the hypothesis of a shared ancestral developmental truncation of multiple morphological features in genera with miniature species is rejected. While strong evidence exists for the new phylogenetic placement of Paedocypris as the sister group to the most diverse clade of freshwater fishes attempts to theorize more broadly as to evolutionary processes of miniaturization would be premature without more complete taxon sampling. Accompanying growing consistency of phylogenetic evidence of relationships in the Cypriniformes has come the consistent support of major clades within the previously recognized family Cyprinidae now recognized as a series of separate families, rendering the former Cyprinidae equivalent to Cyprinoidea. The revised family Cyprinidae includes species of the former subfamily Cyprininae, sister to Psilorhynchidae. The former subfamilies of Cyprininae, Acheilognathinae, Leuciscinae, and Gobioninae are elevated to families, and in keeping with consistency between phylogenetic relationships and classification the families Leptobarbidae and Tincidae are now recognized and the new families Tanichthyidae and Sundadanionidae are described. Paedocypris is recognized in a new superfamily, Paedocypridoidea, and family, Paedocyprididae.
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The world’s smallest vertebrate species of the genus Paedocypris: A new family of freshwater fishes and the sister group to the world’s most diverse clade of freshwater fishes (Teleostei: Cypriniformes)
Molecular phylogenetics and evolution, 2010Co-Authors: Richard L. Mayden, Wei-jen ChenAbstract:The genus Paedocypris has only recently been discovered and described and includes three species, all of which are miniature species and one, P. progenetica, is the smallest vertebrate species. Two previous studies investigating relationships of Paedocypris, based on either cytochrome b or morphology, placed the genus with Sundadanio and Danionella, two genera with miniature species in the formerly recognized family Cyprinidae. Our investigation of the phylogenetic relationships of Paedocypris using six nuclear genes and a broad survey of taxa in major lineages of the Cypriniformes identifies Paedocypris as a monophyletic group and the basal sister group to all Cypriniformes, not a species of the formerly recognized family Cyprinidae. These new relationships are also supported by previously proposed morphological characters but reinterpreted relative to ontogenetic hypotheses and outgroup comparisons used to determine synapomorphies. Miniaturization has occurred independently multiple times in the order, but mostly in the Rasborine Clade. Consequently, the hypothesis of a shared ancestral developmental truncation of multiple morphological features in genera with miniature species is rejected. While strong evidence exists for the new phylogenetic placement of Paedocypris as the sister group to the most diverse clade of freshwater fishes attempts to theorize more broadly as to evolutionary processes of miniaturization would be premature without more complete taxon sampling. Accompanying growing consistency of phylogenetic evidence of relationships in the Cypriniformes has come the consistent support of major clades within the previously recognized family Cyprinidae now recognized as a series of separate families, rendering the former Cyprinidae equivalent to Cyprinoidea. The revised family Cyprinidae includes species of the former subfamily Cyprininae, sister to Psilorhynchidae. The former subfamilies of Cyprininae, Acheilognathinae, Leuciscinae, and Gobioninae are elevated to families, and in keeping with consistency between phylogenetic relationships and classification the families Leptobarbidae and Tincidae are now recognized and the new families Tanichthyidae and Sundadanionidae are described. Paedocypris is recognized in a new superfamily, Paedocypridoidea, and family, Paedocyprididae.
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molecular phylogenetics of the family Cyprinidae actinopterygii cypriniformes as evidenced by sequence variation in the first intron of s7 ribosomal protein coding gene further evidence from a nuclear gene of the systematic chaos in the family
Molecular Phylogenetics and Evolution, 2008Co-Authors: Shunping He, Richard L. Mayden, Wei-jen Chen, Xuzheng Wang, Wei Wang, Kevin L Tang, Yiyu ChenAbstract:The family Cyprinidae is the largest freshwater fish group in the world, including over 200 genera and 2100 species. The phylogenetic relationships of major clades within this family are simply poorly understood, largely because of the overwhelming diversity of the group; however, several investigators have advanced different hypotheses of relationships that pre- and post-date the use of shared-derived characters as advocated through phylogenetic systematics. As expected, most previous investigations used morphological characters. Recently, mitochondrial DNA (mtDNA) sequences and combined morphological and mtDNA investigations have been used to explore and advance our understanding of species relationships and test monophyletic groupings. Limitations of these studies include limited taxon sampling and a strict reliance upon maternally inherited mtDNA variation. The present study is the first endeavor to recover the phylogenetic relationships of the 12 previously recognized monophyletic subfamilies within the Cyprinidae using newly sequenced nuclear DNA (nDNA) for over 50 species representing members of the different previously hypothesized subfamily and family groupings within the Cyprinidae and from other cypriniform families as outgroup taxa. Hypothesized phylogenetic relationships are constructed using maximum parsimony and Basyesian analyses of 1042 sites, of which 971 sites were variable and 790 were phylogenetically informative. Using other appropriate cypriniform taxa of the families Catostomidae (Myxocyprinus asiaticus), Gyrinocheilidae (Gyrinocheilus aymonieri), and Balitoridae (Nemacheilus sp. and Beaufortia kweichotvensis) as outgroups, the Cyprinidae is resolved as a monophyletic group. Within the family the genera Raiamas, Barilius, Danio, and Rasbora, representing many of the tropical cyprinids, represent basal members of the family. All other species can be classified into variably supported and resolved monophyletic lineages, depending upon analysis, that are consistent with or correspond to Barbini and Leuciscini. The Barbini includes taxa traditionally aligned with the subfamily Cyprininae sensu previous morphological revisionary studies by Howes (Barbinae, Labeoninae, Cyprininae and Schizothoracinae). The Leuciscini includes six other subfamilies that are mainly divided into three separate lineages. The relationships among genera and subfamilies are discussed as well as the possible origins of major lineages. (c) 2008 Published by Elsevier Inc.
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molecular phylogenetics of the family Cyprinidae actinopterygii cypriniformes as evidenced by sequence variation in the first intron of s7 ribosomal protein coding gene further evidence from a nuclear gene of the systematic chaos in the family
Molecular Phylogenetics and Evolution, 2008Co-Authors: Richard L. Mayden, Wei-jen Chen, Xuzheng Wang, Wei Wang, Kevin L Tang, Yiyu ChenAbstract:The family Cyprinidae is the largest freshwater fish group in the world, including over 200 genera and 2100 species. The phylogenetic relationships of major clades within this family are simply poorly understood, largely because of the overwhelming diversity of the group; however, several investigators have advanced different hypotheses of relationships that pre- and post-date the use of shared-derived characters as advocated through phylogenetic systematics. As expected, most previous investigations used morphological characters. Recently, mitochondrial DNA (mtDNA) sequences and combined morphological and mtDNA investigations have been used to explore and advance our understanding of species relationships and test monophyletic groupings. Limitations of these studies include limited taxon sampling and a strict reliance upon maternally inherited mtDNA variation. The present study is the first endeavor to recover the phylogenetic relationships of the 12 previously recognized monophyletic subfamilies within the Cyprinidae using newly sequenced nuclear DNA (nDNA) for over 50 species representing members of the different previously hypothesized subfamily and family groupings within the Cyprinidae and from other cypriniform families as outgroup taxa. Hypothesized phylogenetic relationships are constructed using maximum parsimony and Basyesian analyses of 1042 sites, of which 971 sites were variable and 790 were phylogenetically informative. Using other appropriate cypriniform taxa of the families Catostomidae (Myxocyprinus asiaticus), Gyrinocheilidae (Gyrinocheilus aymonieri), and Balitoridae (Nemacheilus sp. and Beaufortia kweichowensis) as outgroups, the Cyprinidae is resolved as a monophyletic group. Within the family the genera Raiamas, Barilius, Danio, and Rasbora, representing many of the tropical cyprinids, represent basal members of the family. All other species can be classified into variably supported and resolved monophyletic lineages, depending upon analysis, that are consistent with or correspond to Barbini and Leuciscini. The Barbini includes taxa traditionally aligned with the subfamily Cyprininae sensu previous morphological revisionary studies by Howes (Barbinae, Labeoninae, Cyprininae and Schizothoracinae). The Leuciscini includes six other subfamilies that are mainly divided into three separate lineages. The relationships among genera and subfamilies are discussed as well as the possible origins of major lineages.
Richard L. Mayden - One of the best experts on this subject based on the ideXlab platform.
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cyprinid phylogeny based on bayesian and maximum likelihood analyses of partitioned data implications for Cyprinidae systematics
Science China-life Sciences, 2012Co-Authors: Xuzhen Wang, Xiaoni Gan, Richard L. MaydenAbstract:Cyprinidae is the biggest family of freshwater fish, but the phylogenetic relationships among its higher-level taxa are not yet fully resolved. In this study, we used the nuclear recombination activating gene 2 and the mitochondrial 16S ribosomal RNA and cytochrome b genes to reconstruct cyprinid phylogeny. Our aims were to (i) demonstrate the effects of partitioned phylogenetic analyses on phylogeny reconstruction of cyprinid fishes; (ii) provide new insights into the phylogeny of cyprinids. Our study indicated that unpartitioned strategy was optimal for our analyses; partitioned analyses did not provide better-resolved or -supported estimates of cyprinid phylogeny. Bayesian analyses support the following relationships among the major monophyletic groups within Cyprinidae: (Cyprininae, Labeoninae), ((Acheilognathinae, ((Leuciscinae, Tincinae), Gobioninae)), Xenocyprininae). The placement of Danioninae was poorly resolved. Estimates of divergence dates within the family showed that radiation of the major cyprinid groups occurred during the Late Oligocene through the Late Miocene. Our phylogenetic analyses improved our understanding of the evolutionary history of this important fish family.
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the world s smallest vertebrate species of the genus paedocypris a new family of freshwater fishes and the sister group to the world s most diverse clade of freshwater fishes teleostei cypriniformes
Molecular Phylogenetics and Evolution, 2010Co-Authors: Richard L. Mayden, Wei-jen ChenAbstract:The genus Paedocypris has only recently been discovered and described and includes three species, all of which are miniature species and one, P. progenetica, is the smallest vertebrate species. Two previous studies investigating relationships of Paedocypris, based on either cytochrome b or morphology, placed the genus with Sundadanio and Danionella, two genera with miniature species in the formerly recognized family Cyprinidae. Our investigation of the phylogenetic relationships of Paedocypris using six nuclear genes and a broad survey of taxa in major lineages of the Cypriniformes identifies Paedocypris as a monophyletic group and the basal sister group to all Cypriniformes, not a species of the formerly recognized family Cyprinidae. These new relationships are also supported by previously proposed morphological characters but reinterpreted relative to ontogenetic hypotheses and outgroup comparisons used to determine synapomorphies. Miniaturization has occurred independently multiple times in the order, but mostly in the Rasborine Clade. Consequently, the hypothesis of a shared ancestral developmental truncation of multiple morphological features in genera with miniature species is rejected. While strong evidence exists for the new phylogenetic placement of Paedocypris as the sister group to the most diverse clade of freshwater fishes attempts to theorize more broadly as to evolutionary processes of miniaturization would be premature without more complete taxon sampling. Accompanying growing consistency of phylogenetic evidence of relationships in the Cypriniformes has come the consistent support of major clades within the previously recognized family Cyprinidae now recognized as a series of separate families, rendering the former Cyprinidae equivalent to Cyprinoidea. The revised family Cyprinidae includes species of the former subfamily Cyprininae, sister to Psilorhynchidae. The former subfamilies of Cyprininae, Acheilognathinae, Leuciscinae, and Gobioninae are elevated to families, and in keeping with consistency between phylogenetic relationships and classification the families Leptobarbidae and Tincidae are now recognized and the new families Tanichthyidae and Sundadanionidae are described. Paedocypris is recognized in a new superfamily, Paedocypridoidea, and family, Paedocyprididae.
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The world’s smallest vertebrate species of the genus Paedocypris: A new family of freshwater fishes and the sister group to the world’s most diverse clade of freshwater fishes (Teleostei: Cypriniformes)
Molecular phylogenetics and evolution, 2010Co-Authors: Richard L. Mayden, Wei-jen ChenAbstract:The genus Paedocypris has only recently been discovered and described and includes three species, all of which are miniature species and one, P. progenetica, is the smallest vertebrate species. Two previous studies investigating relationships of Paedocypris, based on either cytochrome b or morphology, placed the genus with Sundadanio and Danionella, two genera with miniature species in the formerly recognized family Cyprinidae. Our investigation of the phylogenetic relationships of Paedocypris using six nuclear genes and a broad survey of taxa in major lineages of the Cypriniformes identifies Paedocypris as a monophyletic group and the basal sister group to all Cypriniformes, not a species of the formerly recognized family Cyprinidae. These new relationships are also supported by previously proposed morphological characters but reinterpreted relative to ontogenetic hypotheses and outgroup comparisons used to determine synapomorphies. Miniaturization has occurred independently multiple times in the order, but mostly in the Rasborine Clade. Consequently, the hypothesis of a shared ancestral developmental truncation of multiple morphological features in genera with miniature species is rejected. While strong evidence exists for the new phylogenetic placement of Paedocypris as the sister group to the most diverse clade of freshwater fishes attempts to theorize more broadly as to evolutionary processes of miniaturization would be premature without more complete taxon sampling. Accompanying growing consistency of phylogenetic evidence of relationships in the Cypriniformes has come the consistent support of major clades within the previously recognized family Cyprinidae now recognized as a series of separate families, rendering the former Cyprinidae equivalent to Cyprinoidea. The revised family Cyprinidae includes species of the former subfamily Cyprininae, sister to Psilorhynchidae. The former subfamilies of Cyprininae, Acheilognathinae, Leuciscinae, and Gobioninae are elevated to families, and in keeping with consistency between phylogenetic relationships and classification the families Leptobarbidae and Tincidae are now recognized and the new families Tanichthyidae and Sundadanionidae are described. Paedocypris is recognized in a new superfamily, Paedocypridoidea, and family, Paedocyprididae.
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molecular phylogenetics of the family Cyprinidae actinopterygii cypriniformes as evidenced by sequence variation in the first intron of s7 ribosomal protein coding gene further evidence from a nuclear gene of the systematic chaos in the family
Molecular Phylogenetics and Evolution, 2008Co-Authors: Shunping He, Richard L. Mayden, Wei-jen Chen, Xuzheng Wang, Wei Wang, Kevin L Tang, Yiyu ChenAbstract:The family Cyprinidae is the largest freshwater fish group in the world, including over 200 genera and 2100 species. The phylogenetic relationships of major clades within this family are simply poorly understood, largely because of the overwhelming diversity of the group; however, several investigators have advanced different hypotheses of relationships that pre- and post-date the use of shared-derived characters as advocated through phylogenetic systematics. As expected, most previous investigations used morphological characters. Recently, mitochondrial DNA (mtDNA) sequences and combined morphological and mtDNA investigations have been used to explore and advance our understanding of species relationships and test monophyletic groupings. Limitations of these studies include limited taxon sampling and a strict reliance upon maternally inherited mtDNA variation. The present study is the first endeavor to recover the phylogenetic relationships of the 12 previously recognized monophyletic subfamilies within the Cyprinidae using newly sequenced nuclear DNA (nDNA) for over 50 species representing members of the different previously hypothesized subfamily and family groupings within the Cyprinidae and from other cypriniform families as outgroup taxa. Hypothesized phylogenetic relationships are constructed using maximum parsimony and Basyesian analyses of 1042 sites, of which 971 sites were variable and 790 were phylogenetically informative. Using other appropriate cypriniform taxa of the families Catostomidae (Myxocyprinus asiaticus), Gyrinocheilidae (Gyrinocheilus aymonieri), and Balitoridae (Nemacheilus sp. and Beaufortia kweichotvensis) as outgroups, the Cyprinidae is resolved as a monophyletic group. Within the family the genera Raiamas, Barilius, Danio, and Rasbora, representing many of the tropical cyprinids, represent basal members of the family. All other species can be classified into variably supported and resolved monophyletic lineages, depending upon analysis, that are consistent with or correspond to Barbini and Leuciscini. The Barbini includes taxa traditionally aligned with the subfamily Cyprininae sensu previous morphological revisionary studies by Howes (Barbinae, Labeoninae, Cyprininae and Schizothoracinae). The Leuciscini includes six other subfamilies that are mainly divided into three separate lineages. The relationships among genera and subfamilies are discussed as well as the possible origins of major lineages. (c) 2008 Published by Elsevier Inc.
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molecular phylogenetics of the family Cyprinidae actinopterygii cypriniformes as evidenced by sequence variation in the first intron of s7 ribosomal protein coding gene further evidence from a nuclear gene of the systematic chaos in the family
Molecular Phylogenetics and Evolution, 2008Co-Authors: Richard L. Mayden, Wei-jen Chen, Xuzheng Wang, Wei Wang, Kevin L Tang, Yiyu ChenAbstract:The family Cyprinidae is the largest freshwater fish group in the world, including over 200 genera and 2100 species. The phylogenetic relationships of major clades within this family are simply poorly understood, largely because of the overwhelming diversity of the group; however, several investigators have advanced different hypotheses of relationships that pre- and post-date the use of shared-derived characters as advocated through phylogenetic systematics. As expected, most previous investigations used morphological characters. Recently, mitochondrial DNA (mtDNA) sequences and combined morphological and mtDNA investigations have been used to explore and advance our understanding of species relationships and test monophyletic groupings. Limitations of these studies include limited taxon sampling and a strict reliance upon maternally inherited mtDNA variation. The present study is the first endeavor to recover the phylogenetic relationships of the 12 previously recognized monophyletic subfamilies within the Cyprinidae using newly sequenced nuclear DNA (nDNA) for over 50 species representing members of the different previously hypothesized subfamily and family groupings within the Cyprinidae and from other cypriniform families as outgroup taxa. Hypothesized phylogenetic relationships are constructed using maximum parsimony and Basyesian analyses of 1042 sites, of which 971 sites were variable and 790 were phylogenetically informative. Using other appropriate cypriniform taxa of the families Catostomidae (Myxocyprinus asiaticus), Gyrinocheilidae (Gyrinocheilus aymonieri), and Balitoridae (Nemacheilus sp. and Beaufortia kweichowensis) as outgroups, the Cyprinidae is resolved as a monophyletic group. Within the family the genera Raiamas, Barilius, Danio, and Rasbora, representing many of the tropical cyprinids, represent basal members of the family. All other species can be classified into variably supported and resolved monophyletic lineages, depending upon analysis, that are consistent with or correspond to Barbini and Leuciscini. The Barbini includes taxa traditionally aligned with the subfamily Cyprininae sensu previous morphological revisionary studies by Howes (Barbinae, Labeoninae, Cyprininae and Schizothoracinae). The Leuciscini includes six other subfamilies that are mainly divided into three separate lineages. The relationships among genera and subfamilies are discussed as well as the possible origins of major lineages.
Sven O. Kullander - One of the best experts on this subject based on the ideXlab platform.
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The enigmatic Betadevario ramachandrani (Teleostei: Cyprinidae: Danioninae): phylogenetic position resolved by mitogenome analysis, with remarks on the prevalence of chimeric mitogenomes in GenBank
Cogent Biology, 2018Co-Authors: Michael Norén, Sven O. KullanderAbstract:The enigmatic Betadevario ramachandrani (Teleostei: Cyprinidae: Danioninae): phylogenetic position resolved by mitogenome analysis, with remarks on the prevalence of chimeric mitogenomes in GenBank
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Molecular systematics and phylogeography of the genus Rasbora and related genera (Teleostei: Cyprinidae)
2010Co-Authors: Te-yu Liao, Lukas Ruber, Fang Fang, Sven O. KullanderAbstract:Molecular systematics and phylogeography of the genus Rasbora and related genera (Teleostei: Cyprinidae)
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Molecular phylogenetic interrelationships of the south Asian cyprinid genera Danio, Devario and Microrasbora (Teleostei, Cyprinidae, Danioninae)
Zoologica Scripta, 2009Co-Authors: Fang Fang, Te-yu Liao, Michael Norén, Mari Källersjö, Sven O. KullanderAbstract:Molecular analysis of mitochondrial cytochrome b sequences from 159 species of the family Cyprinidae supports the subfamily Danioninae, of which Rasborinae is shown to be a junior synonym. Analysis ...
Deng-fwu Hwang - One of the best experts on this subject based on the ideXlab platform.
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PCR-RFLP analysis using capillary electrophoresis for species identification of Cyprinidae-related products
Food Control, 2013Co-Authors: Chien-hung Chen, Cheng-hong Hsieh, Deng-fwu HwangAbstract:Attempts were made to establish specific polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) profiles of 10 different Cyprinidae fish species using capillary electrophoresis (CE). The primer set CypbL/CypbH was used to amplify a partial mitochondrial cytochrome b gene (331 bp), and the product was subsequently co-digested with endonuclease (NlaIII and MseI). The PCR-RFLP profiles of the 10 Cyprinidae fish species determined using CE were able to successfully differentiate the different fish species. This method was further applied to detect the species used in 24 commercial Cyprinidae-related products. The results identified 4 samples as Cyprinus carpio carpio, 8 samples as Carassius auratus auratus, and 12 samples as Ctenopharyngodon idella. This study shows that performing PCR-RFLP in a CE system is useful for identifying the species of fish from which the processed products originated, and this method can be a potential analytical tool for large and routine food authentication in the future.
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Species identification of Cyprinidae fish in Taiwan by FINS and PCR–RFLP analysis
Food Control, 2012Co-Authors: Chien-hung Chen, Cheng-hong Hsieh, Deng-fwu HwangAbstract:Abstract Cyprinidae fish are widely distributed in Taiwan, and processed products made from them are favored by consumers. To identify the species used for these processed products, complete mitochondrial cytochrome b genes (cytb, 1141 bp) of 8 Cyprinidae were established. Then, a rapid PCR–RFLP method was used to amplify a 426 bp fragment of cytb using primer set Lnew1/Hnew1, and the fragment was co-digested with NlaIII and BstXI. The results show that using this PCR–RFLP technique for the species identification of the 8 Cyprinidae was successful. The method was further applied to investigate 16 commercial samples of processed Cyprinidae products from traditional markets. The results indicate that 9 of the samples were Carassius auratus auratus, Cyprinus carpio carpio, or Ctenopharyngodon idella. The other 6 samples did not belong to the Cyprinidae family according to PCR–RFLP. These samples were further analyzed with the forensically informative nucleotide sequencing (FINS) and BLAST methods. The results show that these 6 processed products were Oreochromis spp., a monophyletic fish group. The last commercial product could not be amplified to obtain a 426 bp fragment, so its species remains unknown. This study shows that PCR–RFLP and FINS can be used to identify processed products fraudulently labeled as Cyprinidae.
Yaping Zhang - One of the best experts on this subject based on the ideXlab platform.
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molecular phylogeny of european and african barbus and their west asian relatives in the cyprininae teleostei cypriniformes and orogenesis of the qinghai tibetan plateau
Chinese Science Bulletin, 2013Co-Authors: Jing Wang, Shanyuan Chen, Ruiguang Zan, Heng Xiao, Yaping Zhang, Ziming Chen, Zhaoping Yue, Robert W Murphy, Jing LuoAbstract:The phylogenetic relationships of European and African Barbus and their West Asian relatives in Cyprininae remain largely unresolved. Consequently, little is known about the drivers of their evolution, including the possible association of uplifting of the Qinghai-Tibetan Plateau (QTP) with the early divergence of the subfamily. We use complete sequence data of the mitochondrial DNA gene encoding the protein cytochrome b (Cytb) to hypothesize the phylogeny of 85 species belonging to 47 genera in the Cyprininae plus 6 species from the Leuciscinae. We employ 6 other species from Cypriniformes as outgroup taxa and estimate divergence times. Our results indicate that European Barbus sensu stricto lineage including Aulopyge shares a common ancestor with specialized and highly specialized schizothoracins and the genera Cyprinion and Scaphiodonichtys. The common ancestor appears to have originated in the Qinghai-Tibetan Plateau (QTP) region about 19.4–17.8 Ma. Barbus sensu stricto lineage appears to have originated about 16.6–15.5 Ma. Small to medium sized African Barbus sensu lato appear to have had an Oriental origin about 19.1–15.3 Ma and are closely related to Asian Puntius. West Asian Carasobarbus lineage including large African Barbus sensu lato might have originated about 9.94 Ma, also in Oriental Realm and has a close relationship to Asian Neolissochilus and Tor. The large-sized Barbus sensu lato appear to have diverged from Carasobarbus about 7.7 Ma. Finally, the Cyprininae appear to have radiated rapidly into nine lineages and many sublineages from about 27.8 to 17.8 Ma, close to the time of the second-stage tectonic movements of the QTP. Our analyses provide evidence that the uplifting of the QTP drove early diversification of the Cyprininae. Our extensive sampling of species involving all of the important areas results in clear evolutionary scenario for the Cyprininae.
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the complete mitochondrial genomes of two species from sinocyclocheilus cypriniformes Cyprinidae and a phylogenetic analysis within cyprininae
Molecular Biology Reports, 2010Co-Authors: Lin Wang, Shanyuan Chen, Ruiguang Zan, Heng Xiao, Yaping ZhangAbstract:We determined the complete mitochondrial DNA sequences for two species of surface- and cave-dwelling-cyprinid fishes, Sinocyclocheilus grahami and S. altishoulderus. Sequence comparison of 13 protein-coding genes shows that the mutation pattern of each single gene is quite similar to those of other vertebrate animal species. Analysis of the ratios of Ka/Ks at these loci between Sinocyclocheilus and two other cyprinid species (Cyprinus carpio and Procypris rabaudi) show that Ka/Ks ratios are differed, consistent with purifying selection and variation in functional constraint among genes. Bayesian analysis and maximum likelihood analysis of the concatenated mitochondrial protein sequences for 14 cyprinid taxa support the monophyly of the family Cyprininae, and further confirm the monophyly of the genus Sinocyclocheilus. The two Sinocyclocheilus species fall within the Cyprinion-Onychostoma lineage, including Cyprinus, Carassius, and Procypris, rather than among the Barbinae, as previously suggested on morphological grounds.
