| 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 Publication | MOLECULAR ECOLOGY
 |
| ISSN | 0962-1083 |
| Volume | 18Issue:17Pages:3616-3628 |
| Abstract | 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.; 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. |
| Subtype | Article |
| Keyword | Mitochondrial 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 Area | Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology |
| DOI | 10.1111/j.1365-294X.2009.04274.x |
| WOS Headings | Science & Technology ; Life Sciences & Biomedicine |
| Funding Organization | 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] ; Key Innovation Plan [KSCX2-SW-106]; National Basic Research Project in China [2005cb422005]; National Natural Science Foundation of China [30600062] |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology |
| WOS Subject | Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology |
| WOS ID | WOS:000269189900006 |
| WOS Keyword | CICHLID FISH ; CRATER LAKE ; POPULATION-STRUCTURE ; SEQUENCE ALIGNMENT ; SPECIATION ; PHYLOGEOGRAPHY ; DIVERGENCE ; MODELS ; PHYLOGENETICS ; EVOLUTIONARY |
| Funding Organization | 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] ; Key Innovation Plan [KSCX2-SW-106]; National Basic Research Project in China [2005cb422005]; National Natural Science Foundation of China [30600062] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/152342/7608 |
| Collection | 期刊论文 |
| Corresponding Author | Zhao, XQ, Chinese Acad Sci, NW Plateau Inst Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810001, Qinghai, Peoples R China |
| Affiliation | 1.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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