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Richard L. Mayden - One of the best experts on this subject based on the ideXlab platform.
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Cypriniformes of Borneo (Actinopterygii, Otophysi): An Extraordinary Fauna for Integrated Studies on Diversity, Systematics, Evolution, Ecology, and Conservation
Zootaxa, 2012Co-Authors: Zohrah Sulaiman, Richard L. MaydenAbstract:Borneo Island is governed by the countries of Brunei Darussalam, Malaysia (Sabah and Sarawak) and Indonesia(Kalimantan) and is part of Sundaland. These countries have a high diversity of freshwater fishes, especially describedand undescribed species of Cypriniformes; together these species and other flora and fauna represent an extraordinaryopportunity for worldwide collaboration to investigate the biodiversity, conservation, management and evolution ofBorneo’s wildlife. Much of the fauna and flora of Borneo is under significant threat, warranting an immediate and swiftinternational collaboration to rapidly inventory, describe, and conserve the diversity. The Sunda drainage appears to havebeen an important evolutionary centre for many fish groups, including cypriniforms (Cyprinidae, Balitoridae andGyrinocheilidae); however, Northwestern Borneo (Brunei, Sabah and Sarawak) is not connected to Sundaland, and thisdisjunction likely explains the non-homogeneity of Bornean ichthyofauna. A previous study confirmed that northernBorneo, eastern Borneo and Sarawak shared a similar ichthyofauna, findings that support the general hypothesis forfreshwater connections at one time between western Borneo and central Sumatra, and south Borneo and Java island.Borneo is drained by five major rivers: (1) Rajang and Baram rivers in Sarawak, and (2) Kapuas, Mahakam and Baritorivers in Kalimantan. The Cypriniformes is the most diverse clade in Borneo, and it is represented by at least 285 speciesin 55 genera and eight major clades (Balitoridae, Cobitidae, Cyprinidae, Gyrinocheilidae, Leptobarbidae, rasborines,cultrines and Paedocyprididae); at least 147 (52%) of these species are endemic to the incredibly diverse habitats ofBorneo. Most fish faunal studies in Borneo have involved inventory and discovery; however, none to date have focusedtheir efforts on the great biodiversity and systematics of Cypriniformes. In this paper we briefly discuss the generalbiodiversity of cypriniforms in Borneo, including recent revisions to the classification of the order through theCypriniformes Tree of Life and Planetary Biodiversity Inventory efforts supported by the USA NSF basic scienceinitiatives, in conjunction with researchers in countries of Borneo. It is our hope that this particular summary willgalvanize individuals to increase worldwide collaborative and integrated efforts on the biodiversity of Cypriniformes,and incite lively discussions among a broad array of interested parties, including those involved in the recent and critically important “Heart of Borneo” initiative funded by all these countries and some NGOs.
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gill filament ossifications a possible morphological synapomorphy uniting the families Balitoridae and cobitidae ostariophysi cypriniformes
Journal of Fish Biology, 2009Co-Authors: Kevin W Conway, Richard L. MaydenAbstract:Ossifications associated with the gill filaments of members of the Balitoridae and Cobitidae are described for the first time. Although gill-filament ossifications are common in teleosts, similar ossifications were not observed in other members of the order Cypriniformes. Their presence is interpreted as a shared and derived character uniting the families Balitoridae and Cobitidae as a monophyletic group.
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Gill‐filament ossifications: a possible morphological synapomorphy uniting the families Balitoridae and Cobitidae (Ostariophysi: Cypriniformes)
Journal of Fish Biology, 2009Co-Authors: Kevin W Conway, Richard L. MaydenAbstract:Ossifications associated with the gill filaments of members of the Balitoridae and Cobitidae are described for the first time. Although gill-filament ossifications are common in teleosts, similar ossifications were not observed in other members of the order Cypriniformes. Their presence is interpreted as a shared and derived character uniting the families Balitoridae and Cobitidae as a monophyletic group.
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The Gill Arches of Psilorhynchus (Ostariophysi: Psilorhynchidae)
Copeia, 2007Co-Authors: Kevin W Conway, Richard L. MaydenAbstract:Abstract Members of the genus Psilorhynchus are small cypriniform fishes adapted for life in the fast flowing streams of the Ganga–Brahmaputra drainage of India and Eastern Nepal and the Ayeyarwady drainage of Northern Myanmar and adjacent China. The systematic placement of Psilorhynchus within existing cypriniform classification schemes has been controversial since the creation of this genus by McClelland in 1839. Over the last 150 years Psilorhynchus has been assigned to, and removed from, the Cyprinidae, Balitoridae, and Cobitidae at least once and has even been placed in its own family, Psilorhynchidae. In this paper we investigate the gill-arch osteology of two species of Psilorhynchus (P. sucatio and P. balitora) and compare their general features to those of a ‘typical’ member of the Cyprinidae. Additionally, we reassess the most recent testable phylogenetic analyses to include species of Psilorhynchus. We conclude based on evidence from gill-arch osteology that Psilorhynchus is more closely relate...
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comparison of evolutionary rates in the mitochondrial dna cytochrome b gene and control region and their implications for phylogeny of the cobitoidea teleostei cypriniformes
Molecular Phylogenetics and Evolution, 2006Co-Authors: Qiongying Tang, Richard L. Mayden, Bangxi XiongAbstract:It is widely accepted that mitochondrial DNA (mtDNA) control region evolves faster than protein encoding genes with few exceptions. In the present study, we sequenced the mitochondrial cytochrome b gene (cyt b) and control region (CR) and compared their rates in 93 specimens representing 67 species of loaches and some related taxa in the Cobitoidea (Order Cypriniformes). The results showed that sequence divergences of the CR were broadly higher than those of the cyt b (about 1.83 times). However, in considering only closely related species, CR sequence evolution was slower than that of cyt b gene (ratio of CR/cyt b is 0.78), a pattern that is found to be very common in Cypriniformes. Combined data of the cyt b and CR were used to estimate the phylogenetic relationship of the Cobitoidea by maximum parsimony, neighbor-joining, and Bayesian methods. With Cyprinus carpio and Danio rerio as outgroups, three analyses identified the same four lineages representing four subfamilies of loaches, with Botiinae on the basal-most clade. The phylogenctic relationship of the Cobitoidea was ((Catostomidae + Gyrinocheilidae) + (Botiinae + (Balitorinae + (Cobitinae + Nemacheilinae)))), which indicated that Sawada's Cobitidae (including Cobitinae and Botiinae) was not monophyletic. Our molecular phylogenetic analyses are in very close agreement with the phylogenetic results based on the morphological data proposed by Nalbant and Bianco, wherein these four subfamilies were elevated to the family level as Botiidae, Balitoridae, Cobitidae, and Nemacheilidae. (c) 2005 Elsevier Inc. All rights reserved.
M. V. Mina - One of the best experts on this subject based on the ideXlab platform.
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Four fish species new to the Omo-Turkana basin, with comments on the distribution ofNemacheilus abyssinicus (Cypriniformes: Balitoridae) in Ethiopia
Hydrobiologia, 1994Co-Authors: Yu. Yu. Dgebuadze, A. S. Golubtsov, V. N. Mikheev, M. V. MinaAbstract:Four fish species, Pollimyrus isidori (Mormyridae), Barbus paludinosus, Labeo forskalii (Cyprinidae), and Nemacheilus abyssinicus (Balitoridae), new to the Omo-Turkana basin, were recorded from the Gojeb River, a tributary of the Omo River (south-western Ethiopia). Occurrence of the latter species in the upper reaches of the Blue Nile and of the Omo drainage substantiates the belonging of the upper parts of these water systems to the Abyssinian highlands ichthyofaunal province.
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Four fish species new to the Omo-Turkana basin, with comments on the distribution of Nemacheilus abyssinicus (Cypriniformes : Balitoridae) in Ethiopia
Hydrobiologia, 1994Co-Authors: Yu. Yu. Dgebuadze, A. S. Golubtsov, V. N. Mikheev, M. V. MinaAbstract:Four fish species,Pollimyrus isidori (Mormyridae),Barbus paludinosus, Labeo forskalii (Cyprinidae), andNemacheilus abyssinicus (Balitoridae), new to the Omo-Turkana basin, were recorded from the Gojeb River, a tributary of the Omo River (south-western Ethiopia). Occurrence of the latter species in the upper reaches of the Blue Nile and of the Omo drainage substantiates the belonging of the upper parts of these water systems to the Abyssinian highlands ichthyofaunal province.
Zohrah Sulaiman - One of the best experts on this subject based on the ideXlab platform.
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Cypriniformes of Borneo (Actinopterygii, Otophysi): An Extraordinary Fauna for Integrated Studies on Diversity, Systematics, Evolution, Ecology, and Conservation
Zootaxa, 2012Co-Authors: Zohrah Sulaiman, Richard L. MaydenAbstract:Borneo Island is governed by the countries of Brunei Darussalam, Malaysia (Sabah and Sarawak) and Indonesia(Kalimantan) and is part of Sundaland. These countries have a high diversity of freshwater fishes, especially describedand undescribed species of Cypriniformes; together these species and other flora and fauna represent an extraordinaryopportunity for worldwide collaboration to investigate the biodiversity, conservation, management and evolution ofBorneo’s wildlife. Much of the fauna and flora of Borneo is under significant threat, warranting an immediate and swiftinternational collaboration to rapidly inventory, describe, and conserve the diversity. The Sunda drainage appears to havebeen an important evolutionary centre for many fish groups, including cypriniforms (Cyprinidae, Balitoridae andGyrinocheilidae); however, Northwestern Borneo (Brunei, Sabah and Sarawak) is not connected to Sundaland, and thisdisjunction likely explains the non-homogeneity of Bornean ichthyofauna. A previous study confirmed that northernBorneo, eastern Borneo and Sarawak shared a similar ichthyofauna, findings that support the general hypothesis forfreshwater connections at one time between western Borneo and central Sumatra, and south Borneo and Java island.Borneo is drained by five major rivers: (1) Rajang and Baram rivers in Sarawak, and (2) Kapuas, Mahakam and Baritorivers in Kalimantan. The Cypriniformes is the most diverse clade in Borneo, and it is represented by at least 285 speciesin 55 genera and eight major clades (Balitoridae, Cobitidae, Cyprinidae, Gyrinocheilidae, Leptobarbidae, rasborines,cultrines and Paedocyprididae); at least 147 (52%) of these species are endemic to the incredibly diverse habitats ofBorneo. Most fish faunal studies in Borneo have involved inventory and discovery; however, none to date have focusedtheir efforts on the great biodiversity and systematics of Cypriniformes. In this paper we briefly discuss the generalbiodiversity of cypriniforms in Borneo, including recent revisions to the classification of the order through theCypriniformes Tree of Life and Planetary Biodiversity Inventory efforts supported by the USA NSF basic scienceinitiatives, in conjunction with researchers in countries of Borneo. It is our hope that this particular summary willgalvanize individuals to increase worldwide collaborative and integrated efforts on the biodiversity of Cypriniformes,and incite lively discussions among a broad array of interested parties, including those involved in the recent and critically important “Heart of Borneo” initiative funded by all these countries and some NGOs.
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Mitochondrial DNA sequence analyses in Bornean sucker fishes (Balitoridae: Teleostei: Gastromyzontinae).
Integrative zoology, 2006Co-Authors: Zohrah Sulaiman, Tan Heok Hui, Kelvin K. P. LimAbstract:Phylogenetic relationships among Bornean sucker fishes (Teleostei: Balitoridae: Gastromyzontinae) were investigated by comparing cytochrome b gene sequences from eight species. The results were in general agreement with previous morphology-based studies. It was found that the genera Gastromyzon and Neogastromyzon are both monophyletic and that the Chinese homalopterid Crossostoma lacustre (Homalopterinae) is not related to the Bornean species. This molecular-level study of cytochrome b gene variation in Bornean gastromyzontins will undoubtedly help to shed light on the molecular systematics of this unique freshwater fish.
Kelvin K. P. Lim - One of the best experts on this subject based on the ideXlab platform.
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Mitochondrial DNA sequence analyses in Bornean sucker fishes (Balitoridae: Teleostei: Gastromyzontinae).
Integrative zoology, 2006Co-Authors: Zohrah Sulaiman, Tan Heok Hui, Kelvin K. P. LimAbstract:Phylogenetic relationships among Bornean sucker fishes (Teleostei: Balitoridae: Gastromyzontinae) were investigated by comparing cytochrome b gene sequences from eight species. The results were in general agreement with previous morphology-based studies. It was found that the genera Gastromyzon and Neogastromyzon are both monophyletic and that the Chinese homalopterid Crossostoma lacustre (Homalopterinae) is not related to the Bornean species. This molecular-level study of cytochrome b gene variation in Bornean gastromyzontins will undoubtedly help to shed light on the molecular systematics of this unique freshwater fish.
Qiongying Tang - One of the best experts on this subject based on the ideXlab platform.
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evolutionary relationships of two balitorids cypriniformes Balitoridae revealed by comparative mitogenomics
Zoologica Scripta, 2018Co-Authors: Li-xia Shi, Qiongying Tang, Chen Zhang, Yinping Wang, Patrick D Danley, Huanzhang LiuAbstract:Balitoridae, a family within the Cypriniformes, inhabit torrential mountain streams in Asia. Although they have long fascinated ichthyologists for their numerous adaptations to this tumultuous environment, the evolutionary history of this group remains poorly understood. In this study, we investigate the evolutionary relationships of the balitorids with particular attention to the phylogenetic placement of two balitorid species, Yaoshania pachychulis and Erromyzon kalotaenia. Both species have extremely limited distributions, they are limited to Mt. Dayaoshan of the Pearl River in China and require dedicated conservation plans. However, little is known about their evolutionary relationships to other balitorids. Here, we examined the evolutionary relationships of Y.pachychulis and E.kalotaenia to each other and other balitorids through sequencing the complete mitochondrial genomes of nine balitorid individuals. For the newly sequenced balitorids, the length of the whole mitogenome, gene arrangement and their base composition are similar to those of other bony fishes. Analyses based on these newly sequenced mitogenomes and an additional 50 previously published mitogenomes show that Y.pachychulis and E.kalotaenia cluster as different clade within the subfamily Gastromyzontinae. The genetic distance between these two species ranges from 0.127 +/- 0.003 to 0.132 +/- 0.004 which is slightly higher than that between some genera (e.g. the distance between Vanmanenia and Metahomaloptera is 0.127 +/- 0.004). Therefore, it is reasonable to assign Y.pachychulis and E.kalotaenia to different genera. Phylogenetic signal assessment suggested that ND1, ND4 and ND5 genes as well as their concatenated subsets perform relatively well in reconstructing the Cobitoidea phylogeny. The divergence time estimation indicated that the balitorids distributed in Mt. Dayaoshan might have originated and evolved following the flattening and uplifting of the Yunnan-Guizhou Plateau during the late Miocene to late Pliocene.
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Evolution and phylogenetic application of the MC1R gene in the Cobitoidea (Teleostei: Cypriniformes)
Zoological research, 2016Co-Authors: Qiongying Tang, Li-xia Shi, Fei Liu, Huanzhang LiuAbstract:Fish of the superfamily Cobitoidea sensu stricto (namely loaches) exhibit extremely high diversity of color patterns, but so far little is known about their evolutionary mechanism. Melanocortin 1 receptor gene (MC1R) plays an important role during the synthesis of melanin and formation of animal body color patterns. In this study, we amplified and sequenced the partial MC1R gene for 44 loach individuals representing 31 species of four families. Phylogenetic analyses yielded a topology congruent with previous studies using multiple nuclear loci, showing that each of the four families was monophyletic with sister relationships of Botiidae+ (Cobitidae+(Balitoridae+Nemacheilidae)). Gene evolutionary analyses indicated that MC1R in loaches was under purifying selection pressure, with various sites having different dN/dS values. Both Botiidae and Cobitidae had lower dN/dS values than those of background lineages, suggesting their evolution might be strongly affected by purifying selection pressure. For Balitoridae and Nemacheilidae, both had larger dN/dS values than those of background lineages, suggesting they had a faster evolutionary rate under more relaxed selection pressure. Consequently, we inferred that the relatively stable color patterns in Botiidae and Cobitidae might result from the strong purifying selection pressure on the MC1R gene, whereas the complicated and diverse color patterns in Balitoridae and Nemacheilidae might be associated with the relaxed selection pressure. Given the easy experimental procedure for the partial MC1R gene and its excellent performance in reconstructing phylogeny, we suggest this gene could be used as a good molecular marker for the phylogenetic study of fish species.
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The complete mitochondrial genome sequence of Jinshaia abbreviata (Cypriniformes, Balitoridae).
Mitochondrial DNA, 2014Co-Authors: Yin‐ping Wang, Huanzhang Liu, Qiongying TangAbstract:Jinshaia abbreviata, belonging to the family Balitoridae in Cypriniformes, is endemic to the Upper Yangtze River with most population distributed in the Jinsha River. In this study, the complete mitochondrial genome of J. abbreviata was sequenced with its structure analyzed. The mitochondrial genome of J. abbreviata is similar to those of the typical vertebrates, 16,567bp in length, including 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes, and one non-coding control region (D-loop). The D-loop of J. abbreviata was characterized by one termination-associated sequence with two pair of motifs and six conserved sequence blocks (CSB-F, CSB-E, CSB-D, and CSB I-III). The mitogenome sequence of J. abbreviata could contribute to estimate the phylogenetic relationship of the Balitoridae. And further investigations with more Jinshaia species and individuals included need to be performed to better understand the speciation process and evolutionary history of the genus Jinshaia.
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The complete mitochondrial genome sequence of Sinogastromyzon sichangensis (Cypriniformes, Balitoridae)
Mitochondrial DNA, 2014Co-Authors: Qiongying TangAbstract:Sinogastromyzon sichangensis, belonging to the family Balitoridae in Cypriniformes, is endemic to the Upper Yangtze River and the Qing River. In this study, the complete mitochondrial genome of S. sichangensis was sequenced with its structure analyzed. The mitochondrial genome of S. sichangensis is similar to those of the typical vertebrates, 16,567 bp in length, including 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes and one non-coding control region (D-loop). The D-loop of S. sichangensis was characterized by one termination-associated sequence and seven conserved sequence blocks (CSB-F, CSB-E, CSB-D, CSB-B and CSB I-III). The mitogenome sequence of S. sichangensis could contribute to estimate the phylogenetic relationship of the Balitoridae. Further investigations with more Sinogastromyzon species and other balitorid fishes included should be performed to better understand the evolutionary history of this unique group of fishes which can successfully adapt to mountain torrents.
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Phylogenetic relationships among Cobitoidea based on mitochondrial ND4 and ND5 gene sequences
Dong wu xue yan jiu = Zoological research, 2010Co-Authors: Si-qing Liu, Qiongying Tang, Jia-bo Zhang, Huanzhang LiuAbstract:In the present study, we cloned and sequenced 10 new ND4 and ND5 gene sequences of Cobitoidea. These sequences were used to reconstruct phylogenetic relationships together with those of 15 other species downloaded from GenBank. The results showed that the length of ND4 gene sequence was 1 380?1 387 bp with ATG as starting codon and incomplete termination signal as terminated codon; the length of ND5 gene sequence was 1 821?1 839 bp with ATG as starting codon and TAA or TAG as terminated codon; three tRNA genes coding tRNAs that carry hisidine, serine and leucine respectively, were inserted between ND4 and ND5 genes. A, T, C and G accounted for 30.4%, 27.3%, 14.2% and 28.1% in ND4/ND5 gene (including intervening three tRNA genes). The content of A+T (57.7%) is higher than that of G+C (42.3%). The estimated Ti/Tv ratio was 1.586. With Danio rerio and Cyprinus carpio as outgroups, the phylogenetic relationships of Cobitoidea were analyzed using maximum parsimony (MP) method, maximum likelihood (ML) method and Bayesian analyses (BI). Results of all the three methods indicated that Cobitinae, Nemacheilinae, Botiinae, Balitoridae and Vaillantellidae were all monophyletic respectively, and their interrelationships were: (Vaillantellidae + (Botiinae + (Cobitinae + (Nemacheilinae + Balitoridae)))), which was consistent with the previous studies based on the whole mitogenome and some nuclear genes sequences (eg. RAG1 gene). However, the present results differ from those based upon other mtDNA genes sequences (e.g. the cyt b and D-loop showed that Nemacheilinae grouped with Cobitinae forming sister-group, then they clustered with Balitoridae). The difference could be due to the phylogenetic information carried by different length sequence: Longer sequences carry more information and result in more reliable phylogenetic trees.
