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Ongoing Speciation in the Tibetan Plateau Gymnocypris Species Complex
Zhang, Renyi1,2; Peng, Zuogang3,4,5; Li, Guogang1,2; Zhang, Cunfang1; Tang, Yongtao1; Gan, Xiaoni3; He, Shunping3; Zhao, Kai1; Zhao, K (reprint author), Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining, Qinghai, Peoples R China.
2013-08-15
Source PublicationPLOS ONE
ISSN1932-6203
Volume8Issue:8Pages:e71331
AbstractLocal adaptation towards divergent ecological conditions often results in genetic differentiation and adaptive phenotypic divergence. To illuminate the ecological distinctiveness of the schizothoracine fish, we studied a Gymnocypris species complex consisting of three morphs distributed across four bodies of water (the Yellow River, Lake Qinghai, the Ganzi River and Lake Keluke) in the Northeast Tibetan Plateau. We used a combination of mitochondrial (16S rRNA and Cyt b) and nuclear (RAG-2) genetic sequences to investigate the phylogeography of these morphs based on a sample of 277 specimens. Analysis of gill rakers allowed for mapping of phenotypic trajectories along the phylogeny. The phylogenetic and morphological analyses showed that the three sparsely rakered morphs were present at two extremes of the phylogenetic tree: the Yellow River morphs were located at the basal phylogenetic split, and the Lake Keluke and Ganzi River morphs at the peak, with the densely rakered Lake Qinghai morphs located between these two extremes. Age estimation further indicated that the sparsely rakered morphs constituted the oldest and youngest lineages, whereas the densely rakered morph was assigned to an intermediate-age lineage. These results are most compatible with the process of evolutionary convergence or reversal. Disruptive natural selection due to divergent habitats and dietary preferences is likely the driving force behind the formation of new morphs, and the similarities between their phenotypes may be attributable to the similarities between their forms of niche tracking associated with food acquisition. This study provides the first genetic evidence for the occurrence of convergence or reversal in the schizothoracine fish of the Tibetan Plateau at small temporal scales.; Local adaptation towards divergent ecological conditions often results in genetic differentiation and adaptive phenotypic divergence. To illuminate the ecological distinctiveness of the schizothoracine fish, we studied a Gymnocypris species complex consisting of three morphs distributed across four bodies of water (the Yellow River, Lake Qinghai, the Ganzi River and Lake Keluke) in the Northeast Tibetan Plateau. We used a combination of mitochondrial (16S rRNA and Cyt b) and nuclear (RAG-2) genetic sequences to investigate the phylogeography of these morphs based on a sample of 277 specimens. Analysis of gill rakers allowed for mapping of phenotypic trajectories along the phylogeny. The phylogenetic and morphological analyses showed that the three sparsely rakered morphs were present at two extremes of the phylogenetic tree: the Yellow River morphs were located at the basal phylogenetic split, and the Lake Keluke and Ganzi River morphs at the peak, with the densely rakered Lake Qinghai morphs located between these two extremes. Age estimation further indicated that the sparsely rakered morphs constituted the oldest and youngest lineages, whereas the densely rakered morph was assigned to an intermediate-age lineage. These results are most compatible with the process of evolutionary convergence or reversal. Disruptive natural selection due to divergent habitats and dietary preferences is likely the driving force behind the formation of new morphs, and the similarities between their phenotypes may be attributable to the similarities between their forms of niche tracking associated with food acquisition. This study provides the first genetic evidence for the occurrence of convergence or reversal in the schizothoracine fish of the Tibetan Plateau at small temporal scales.
SubtypeArticle
KeywordWhitefish Coregonus-lavaretus Local Adaptation European Populations Parallel Evolution Sequence Alignment Lake Tanganyika Poison Frogs Cyprinidae Teleostei Biogeography
Department[Zhang, Renyi ; Li, Guogang ; Zhang, Cunfang ; Tang, Yongtao ; Zhao, Kai] Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining, Qinghai, Peoples R China ; [Zhang, Renyi ; Li, Guogang] Univ Chinese Acad Sci, Beijing, Peoples R China ; [Peng, Zuogang ; Gan, Xiaoni ; He, Shunping] Chinese Acad Sci, Inst Hydrobiol, Lab Fish Phylogenet & Biogeog, Wuhan, Hubei, Peoples R China ; [Peng, Zuogang] Minist Educ, Key Lab Freshwater Fish Reprod & Dev, Chongqing, Peoples R China ; [Peng, Zuogang] Southwest Univ Sch Life Sci, Chongqing, Peoples R China
DOI10.1371/journal.pone.0071331
WOS HeadingsScience & Technology
Funding OrganizationChinese Academy of Sciences [KSCX2-YW-N-101, KSCX2-1W-N-004]; National Natural Science Foundation of China [30970341, 31172070, 31071903] ; Chinese Academy of Sciences [KSCX2-YW-N-101, KSCX2-1W-N-004]; National Natural Science Foundation of China [30970341, 31172070, 31071903] ; Chinese Academy of Sciences [KSCX2-YW-N-101, KSCX2-1W-N-004]; National Natural Science Foundation of China [30970341, 31172070, 31071903] ; Chinese Academy of Sciences [KSCX2-YW-N-101, KSCX2-1W-N-004]; National Natural Science Foundation of China [30970341, 31172070, 31071903]
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000323378000042
WOS KeywordWHITEFISH COREGONUS-LAVARETUS ; LOCAL ADAPTATION ; EUROPEAN POPULATIONS ; PARALLEL EVOLUTION ; SEQUENCE ALIGNMENT ; LAKE TANGANYIKA ; POISON FROGS ; CYPRINIDAE ; TELEOSTEI ; BIOGEOGRAPHY
Funding OrganizationChinese Academy of Sciences [KSCX2-YW-N-101, KSCX2-1W-N-004]; National Natural Science Foundation of China [30970341, 31172070, 31071903] ; Chinese Academy of Sciences [KSCX2-YW-N-101, KSCX2-1W-N-004]; National Natural Science Foundation of China [30970341, 31172070, 31071903] ; Chinese Academy of Sciences [KSCX2-YW-N-101, KSCX2-1W-N-004]; National Natural Science Foundation of China [30970341, 31172070, 31071903] ; Chinese Academy of Sciences [KSCX2-YW-N-101, KSCX2-1W-N-004]; National Natural Science Foundation of China [30970341, 31172070, 31071903]
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Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/19532
Collection水生生物多样性与资源保护研究中心_期刊论文
Corresponding AuthorZhao, K (reprint author), Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining, Qinghai, Peoples R China.
Affiliation1.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining, Qinghai, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Hydrobiol, Lab Fish Phylogenet & Biogeog, Wuhan, Hubei, Peoples R China
4.Minist Educ, Key Lab Freshwater Fish Reprod & Dev, Chongqing, Peoples R China
5.Southwest Univ Sch Life Sci, Chongqing, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Renyi,Peng, Zuogang,Li, Guogang,et al. Ongoing Speciation in the Tibetan Plateau Gymnocypris Species Complex[J]. PLOS ONE,2013,8(8):e71331.
APA Zhang, Renyi.,Peng, Zuogang.,Li, Guogang.,Zhang, Cunfang.,Tang, Yongtao.,...&Zhao, K .(2013).Ongoing Speciation in the Tibetan Plateau Gymnocypris Species Complex.PLOS ONE,8(8),e71331.
MLA Zhang, Renyi,et al."Ongoing Speciation in the Tibetan Plateau Gymnocypris Species Complex".PLOS ONE 8.8(2013):e71331.
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