Transcriptome-Wide Patterns of the Genetic and Expression Variations in Two Sympatric Schizothoracine Fishes in a Tibetan Plateau Glacier Lake | |
Chen, Juan1,2; Yang, Liandong1; Zhang, Renyi3; Uebbing, Severin4; Zhang, Cunfang3; Jiang, Haifeng1,2; Lei, Yi1,2; Lv, Wenqi1,2; Tian, Fei3; Zhao, Kai3; He, Shunping1,5,6 | |
2020 | |
Source Publication | GENOME BIOLOGY AND EVOLUTION
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ISSN | 1759-6653 |
Volume | 12Issue:1Pages:3725-3737 |
Abstract | Sympatric speciation remains a central focus of evolutionary biology. Although some evidence shows speciation occurring in this way, little is known about the gene expression evolution and the characteristics of population genetics as species diverge. Two closely related Gymnocypris fish (Gymnocypris chui and Gymnocypris scieracanthus), which come from a small glacier lake in the Tibetan Plateau, Lake Langcuo, exist a possible incipient sympatric adaptive ecological speciation. We generated large amounts of RNA-Seq data from multiple individuals and tissues from each of the two species and compared gene expression patterns and genetic polymorphisms between them. Ordination analysis separated samples by organ rather than by species. The degree of expression difference between organs within and between species was different. Phylogenetic analyses indicated that the two closely related taxa formed a monophyletic complex. Population structure analysis displayed two distinctly divergent clusters of G. chui and G. scleracanthus populations. By contrast, G. scleracanthus population genetic diversity is higher than that of G. chui. Considerable sites of the two populations were differentiated with a coefficient of F-ST = 0.25-0.50, implying that a small proportion of loci nevertheless exhibited deep divergence in two comparisons. Concomitantly, putatively selected genes during speciation revealed functional categories are enriched in bone morphogenesis, cell growth, neurogenetics, enzyme activity, and binding activity in G. chui population. In contrast, nutrition and localization were highlighted in G. scleracanthus. Collectively, morphological traits and dietary preference combine with genetic variation and expression variation, probably contributed to the incipient speciation of two sympatric populations. |
Keyword | sympatric speciation transcriptomics gene expression population genetics |
DOI | 10.1093/gbe/evz276 |
Indexed By | SCI |
Language | 英语 |
WOS Research Area | Evolutionary Biology ; Genetics & Heredity |
WOS Subject | Evolutionary Biology ; Genetics & Heredity |
WOS ID | WOS:000522860800016 |
WOS Keyword | EVOLUTION CANYON ; PHYLOGENETIC ANALYSIS ; MOLECULAR PHYLOGENY ; SPINY MICE ; SPECIATION ; CYPRINIDAE ; DIVERGENCE ; ADAPTATIONS ; TELEOSTEI ; SELECTION |
Publisher | OXFORD UNIV PRESS |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.ihb.ac.cn/handle/342005/35978 |
Collection | 水生生物多样性与资源保护研究中心_期刊论文 |
Corresponding Author | Tian, Fei; Zhao, Kai; He, Shunping |
Affiliation | 1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining, Peoples R China 4.Yale Univ, Sch Med, Dept Genet, New Haven, CT 06510 USA 5.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Peoples R China 6.Chinese Acad Sci, Ctr Excellence Anim Evolut & Genet, Kunming, Yunnan, Peoples R China |
Recommended Citation GB/T 7714 | Chen, Juan,Yang, Liandong,Zhang, Renyi,et al. Transcriptome-Wide Patterns of the Genetic and Expression Variations in Two Sympatric Schizothoracine Fishes in a Tibetan Plateau Glacier Lake[J]. GENOME BIOLOGY AND EVOLUTION,2020,12(1):3725-3737. |
APA | Chen, Juan.,Yang, Liandong.,Zhang, Renyi.,Uebbing, Severin.,Zhang, Cunfang.,...&He, Shunping.(2020).Transcriptome-Wide Patterns of the Genetic and Expression Variations in Two Sympatric Schizothoracine Fishes in a Tibetan Plateau Glacier Lake.GENOME BIOLOGY AND EVOLUTION,12(1),3725-3737. |
MLA | Chen, Juan,et al."Transcriptome-Wide Patterns of the Genetic and Expression Variations in Two Sympatric Schizothoracine Fishes in a Tibetan Plateau Glacier Lake".GENOME BIOLOGY AND EVOLUTION 12.1(2020):3725-3737. |
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