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The youngest split in sympatric schizothoracine fish (Cyprinidae) is shaped by ecological adaptations in a Tibetan Plateau glacier lake
Zhao, Kai1; Duan, Zi Yuan2,3; Peng, Zuo Gang2; Guo, Song Chang1; Li, Jun Bing2; He, Shun Ping2; Zhao, Xin Quan1; Zhao, XQ, Chinese Acad Sci, NW Plateau Inst Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810001, Qinghai, Peoples R China
2009-09-01
Source PublicationMOLECULAR ECOLOGY
ISSN0962-1083
Volume18Issue:17Pages:3616-3628
AbstractAlthough new empirical evidence shows that sympatric speciation has occurred in some species, there are few indisputable model organisms for this process of speciation. The two subspecies (Gymnocypris eckloni eckloni and G. e. scoliostomus) of the schizothoracine Gymnocypris fish species complex from a small glacier lake in the Tibetan Plateau, Lake Sunmcuo, fit several of the key characteristics of the sympatric speciation model. We used combined mitochondrial control region sequences and the cytochrome b gene (1894 bp) to address the phylogenetics and population genetics of 232 specimens of G. e. eckloni and G. e. scoliostomus, as well as all of its closely related sister species. We found that: (i) a total of four old lineages were uncovered in the widespread G. e. eckloni, of which only one was shown to be shared with all G. e. scoliostomus individuals and (ii) the new subspecies (G. e. scoliostomus) evolved in Lake Sunmcuo from the ancestral G. e. eckloni population within approximately 0.057 Ma. These two taxa of the species complex are morphologically distinct, and reproductive isolation is further suggested. Ecological disruptive selection based on morphological traits (e.g. mouth cleft characters) and food utilization may be a mechanism of incipient speciation of two sympatric populations within Lake Sunmcuo. This study provides the first genetic evidence for sympatric speciation in the schizothoracine fish.; Although new empirical evidence shows that sympatric speciation has occurred in some species, there are few indisputable model organisms for this process of speciation. The two subspecies (Gymnocypris eckloni eckloni and G. e. scoliostomus) of the schizothoracine Gymnocypris fish species complex from a small glacier lake in the Tibetan Plateau, Lake Sunmcuo, fit several of the key characteristics of the sympatric speciation model. We used combined mitochondrial control region sequences and the cytochrome b gene (1894 bp) to address the phylogenetics and population genetics of 232 specimens of G. e. eckloni and G. e. scoliostomus, as well as all of its closely related sister species. We found that: (i) a total of four old lineages were uncovered in the widespread G. e. eckloni, of which only one was shown to be shared with all G. e. scoliostomus individuals and (ii) the new subspecies (G. e. scoliostomus) evolved in Lake Sunmcuo from the ancestral G. e. eckloni population within approximately 0.057 Ma. These two taxa of the species complex are morphologically distinct, and reproductive isolation is further suggested. Ecological disruptive selection based on morphological traits (e.g. mouth cleft characters) and food utilization may be a mechanism of incipient speciation of two sympatric populations within Lake Sunmcuo. This study provides the first genetic evidence for sympatric speciation in the schizothoracine fish.
SubtypeArticle
KeywordMitochondrial Control Region And Cytochrome b Phylogeography Pleistocene Glaciations Schizothoracine Fish Tibetan Plateau
Department[Zhao, Kai; Guo, Song Chang; Zhao, Xin Quan] Chinese Acad Sci, NW Plateau Inst Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810001, Qinghai, Peoples R China; [Duan, Zi Yuan; Peng, Zuo Gang; Li, Jun Bing; He, Shun Ping] Chinese Acad Sci, Inst Hydrobiol, Lab Fish Phylogenet & Biogeog, Wuhan 430072, Hubei, Peoples R China; [Duan, Zi Yuan] Chinese Acad Sci, Inst Genet & Dev Biol, Beijing 100101, Peoples R China
Subject AreaBiochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
DOI10.1111/j.1365-294X.2009.04274.x
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationKey Innovation Plan [KSCX2-SW-106]; National Basic Research Project in China [2005cb422005]; National Natural Science Foundation of China [30600062] ; Key Innovation Plan [KSCX2-SW-106]; National Basic Research Project in China [2005cb422005]; National Natural Science Foundation of China [30600062] ; Key Innovation Plan [KSCX2-SW-106]; National Basic Research Project in China [2005cb422005]; National Natural Science Foundation of China [30600062] ; Key Innovation Plan [KSCX2-SW-106]; National Basic Research Project in China [2005cb422005]; National Natural Science Foundation of China [30600062]
Indexed BySCI
Language英语
WOS Research AreaBiochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
WOS SubjectBiochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
WOS IDWOS:000269189900006
WOS KeywordCICHLID FISH ; CRATER LAKE ; POPULATION-STRUCTURE ; SEQUENCE ALIGNMENT ; SPECIATION ; PHYLOGEOGRAPHY ; DIVERGENCE ; MODELS ; PHYLOGENETICS ; EVOLUTIONARY
Funding OrganizationKey Innovation Plan [KSCX2-SW-106]; National Basic Research Project in China [2005cb422005]; National Natural Science Foundation of China [30600062] ; Key Innovation Plan [KSCX2-SW-106]; National Basic Research Project in China [2005cb422005]; National Natural Science Foundation of China [30600062] ; Key Innovation Plan [KSCX2-SW-106]; National Basic Research Project in China [2005cb422005]; National Natural Science Foundation of China [30600062] ; Key Innovation Plan [KSCX2-SW-106]; National Basic Research Project in China [2005cb422005]; National Natural Science Foundation of China [30600062]
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7608
Collection期刊论文
Corresponding AuthorZhao, XQ, Chinese Acad Sci, NW Plateau Inst Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810001, Qinghai, Peoples R China
Affiliation1.Chinese Acad Sci, NW Plateau Inst Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810001, Qinghai, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Lab Fish Phylogenet & Biogeog, Wuhan 430072, Hubei, Peoples R China
3.Chinese Acad Sci, Inst Genet & Dev Biol, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Kai,Duan, Zi Yuan,Peng, Zuo Gang,et al. The youngest split in sympatric schizothoracine fish (Cyprinidae) is shaped by ecological adaptations in a Tibetan Plateau glacier lake[J]. MOLECULAR ECOLOGY,2009,18(17):3616-3628.
APA Zhao, Kai.,Duan, Zi Yuan.,Peng, Zuo Gang.,Guo, Song Chang.,Li, Jun Bing.,...&Zhao, XQ, Chinese Acad Sci, NW Plateau Inst Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810001, Qinghai, Peoples R China.(2009).The youngest split in sympatric schizothoracine fish (Cyprinidae) is shaped by ecological adaptations in a Tibetan Plateau glacier lake.MOLECULAR ECOLOGY,18(17),3616-3628.
MLA Zhao, Kai,et al."The youngest split in sympatric schizothoracine fish (Cyprinidae) is shaped by ecological adaptations in a Tibetan Plateau glacier lake".MOLECULAR ECOLOGY 18.17(2009):3616-3628.
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