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Mitochondrial DNA phylogeny of two morphologically enigmatic fishes in the subfamily Schizothoracinae (Teleostei : Cyprinidae) in the Qinghai-Tibetan Plateau
Qi, D.; Guo, S.; Tang, J.; Zhao, X.; Liu, J.
2007-03-01
发表期刊JOURNAL OF FISH BIOLOGY
卷号70期号:march页码:60-74
文章类型Article
摘要The complete mitochondrial DNA (mtDNA) cytochrome b gene (1140 bp) was sequenced in Herzenstein macrocephalus and Gymnocypris namensis and in 13 other species and sub-species (n = 22), representing four closely related genera in the subfamily Schizothoracinae. Conflicting taxonomies of H. macrocephalus and G. namensis have been proposed because of the character instability among individuals. Parsimony, maximum likelihood and Bayesian methods produced phylogenetic trees with the same topology and resolved several distinctive clades. Previous taxonomic treatments, which variously placed these two species of separate genera or as sub-species, are inconsistent with the mtDNA phylogeny. Both H. macrocephalus and G. namensis appear in a well-supported clade, which also includes nine species of Schizopygopsis, and hence should be transferred to the genus Schizopygopsis. Morphological changes are further illustrated, and their adaptive evolution in response to the local habitat shifts during the speciation process appears to be responsible for conflicting views on the systematics of these two species and hence the contrasting taxonomic treatments. These species are endemic to the Qinghai-Tibetan Plateau, a region with a history of geological activity and a rich diversity of habitats that may have result in the parallel and reversal evolution of some morphological characters used in their taxonomies. Our results further suggest that speciation and morphological evolution of fishes in this region may be more complex than those previously expected. (c) 2007 The Authors Journal compilation (c) 2007 The Fisheries Society of the British Isles.; The complete mitochondrial DNA (mtDNA) cytochrome b gene (1140 bp) was sequenced in Herzenstein macrocephalus and Gymnocypris namensis and in 13 other species and sub-species (n = 22), representing four closely related genera in the subfamily Schizothoracinae. Conflicting taxonomies of H. macrocephalus and G. namensis have been proposed because of the character instability among individuals. Parsimony, maximum likelihood and Bayesian methods produced phylogenetic trees with the same topology and resolved several distinctive clades. Previous taxonomic treatments, which variously placed these two species of separate genera or as sub-species, are inconsistent with the mtDNA phylogeny. Both H. macrocephalus and G. namensis appear in a well-supported clade, which also includes nine species of Schizopygopsis, and hence should be transferred to the genus Schizopygopsis. Morphological changes are further illustrated, and their adaptive evolution in response to the local habitat shifts during the speciation process appears to be responsible for conflicting views on the systematics of these two species and hence the contrasting taxonomic treatments. These species are endemic to the Qinghai-Tibetan Plateau, a region with a history of geological activity and a rich diversity of habitats that may have result in the parallel and reversal evolution of some morphological characters used in their taxonomies. Our results further suggest that speciation and morphological evolution of fishes in this region may be more complex than those previously expected. (c) 2007 The Authors Journal compilation (c) 2007 The Fisheries Society of the British Isles.
关键词Evolution Gymnocypris Namensis Herzenstein Macrocephalus Morphology Phylogeny Taxonomy
WOS标题词Science & Technology ; Life Sciences & Biomedicine
学科领域生物科学
关键词[WOS]MOLECULAR PHYLOGENY ; EVOLUTIONARY GENETICS ; SEQUENCE ALIGNMENT ; TREE TOPOLOGIES ; XIZANG TIBET ; UPLIFT ; BIOGEOGRAPHY ; PERCIFORMES ; ASTERACEAE ; RADIATION
收录类别SCI
语种英语
WOS研究方向Fisheries ; Marine & Freshwater Biology
WOS类目Fisheries ; Marine & Freshwater Biology
WOS记录号WOS:000244243300005
引用统计
被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/1297
专题中国科学院西北高原生物研究所
作者单位1.Chinese Acad Sci, Key Lab Qinghai Tibetan Plateau Biol Evaluat & Ad, NW Plateau Inst Biol, Xining 810001, Qinghai, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Fishery Environm Monitoring Stn Qinghai Prov, Xining 810012, Peoples R China
推荐引用方式
GB/T 7714
Qi, D.,Guo, S.,Tang, J.,et al. Mitochondrial DNA phylogeny of two morphologically enigmatic fishes in the subfamily Schizothoracinae (Teleostei : Cyprinidae) in the Qinghai-Tibetan Plateau[J]. JOURNAL OF FISH BIOLOGY,2007,70(march):60-74.
APA Qi, D.,Guo, S.,Tang, J.,Zhao, X.,&Liu, J..(2007).Mitochondrial DNA phylogeny of two morphologically enigmatic fishes in the subfamily Schizothoracinae (Teleostei : Cyprinidae) in the Qinghai-Tibetan Plateau.JOURNAL OF FISH BIOLOGY,70(march),60-74.
MLA Qi, D.,et al."Mitochondrial DNA phylogeny of two morphologically enigmatic fishes in the subfamily Schizothoracinae (Teleostei : Cyprinidae) in the Qinghai-Tibetan Plateau".JOURNAL OF FISH BIOLOGY 70.march(2007):60-74.
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