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题名: Mitochondrial capture and incomplete lineage sorting in the diversification of balitorine loaches (Cypriniformes, Balitoridae) revealed by mitochondrial and nuclear genes
作者: Tang, Qiong-Ying1; Liu, Si-Qing1; Yu, Dan1; Liu, Huan-Zhang1; Danley, Patrick D.2
通讯作者: Liu, HZ (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China.
关键词: INTROGRESSIVE HYBRIDIZATION ; MOLECULAR PHYLOGENY ; EVOLUTIONARY SIGNIFICANCE ; ANCIENT HYBRIDIZATION ; SEQUENCE ALIGNMENT ; POROUS GENOMES ; DNA ; TELEOSTEI ; CYPRINIDAE ; SOFTWARE
刊名: ZOOLOGICA SCRIPTA
发表日期: 2012-05-01
DOI: 10.1111/j.1463-6409.2011.00530.x
卷: 41, 期:3, 页:233-247
收录类别: SCI
文章类型: Article
部门归属: [Tang, Qiong-Ying; Liu, Si-Qing; Yu, Dan; Liu, Huan-Zhang] Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China; [Danley, Patrick D.] Baylor Univ, Dept Biol, Waco, TX 76798 USA
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Natural Science Foundation of China (NSFC)[3070072, 31061160185]; Chinese Academy of Sciences[Y05E08]
类目[WOS]: Evolutionary Biology ; Zoology
研究领域[WOS]: Evolutionary Biology ; Zoology
摘要: Tang, Q.-Y., Liu, S.-Q., Yu, D., Liu, H.-Z. & Danley, P.D. (2012) Mitochondrial capture and incomplete lineage sorting in the diversification of balitorine loaches (Cypriniformes, Balitoridae) revealed by mitochondrial and nuclear genes. Zoologica Scripta, 41, 233-247. Understanding the diversification of species is a central goal of evolutionary biological studies. One powerful tool to investigate the speciation process is molecular systematics. Here, we use molecular methods to investigate the evolution of balitorine loaches belonging to two genera, Lepturichthys and Jinshaia. Both genera contain only two species (Lepturichthys fimbriata, Lepturichthys dolichopterus and Jinshaia sinensis and Jinshaia abbreviata), all of which are endemic to China. These species share many morphological and ecological characters and exhibit overlapping distributions in the Upper Yangtze River. In this study, we used two mitochondrial genes (Cytb and COI) and one nuclear gene (RAG1) to investigate the phylogenetic relationships within and between these two genera. Phylogenetic analyses and network construction based on mitochondrial and nuclear genes consistently supported the monophyly of Jinshaia. In contrast, the mitochondrial and nuclear genes yielded conflicting results in Lepturichthys. The phylogenetic analyses of mitochondrial sequences identify two distinct Lepturichthys lineages, Lepturichthys A and Lepturichthys B. Lepturichthys A includes most of L. fimbriata individuals from the Upper Yangtze River and is the sister group to all Jinshaia species. Lepturichthys B consists of the remaining L. fimbriata individuals from the Upper and Middle Yangtze River, and all L. dolichopterus individuals from the Minjiang River in Southeastern China. However, the analysis of the nuclear sequence indicates that the genus Lepturichthys is monophyletic and is only distantly related to Jinshaia. This incongruence suggests that introgressive hybridization might have occurred between L. fimbriata (Lepturichthys A) and Jinshaia species. As a result of this hybridization event, L. fimbriata captured the mitochondrial genome of the sympatric Jinshaia species. This capture event appears to have occurred at least 1.74 million years ago. Additionally, L. fimbriata appears to be paraphyletic; the nuclear data indicated that L. dolichopterus forms a monophyletic clade nested within L. fimbriata. Because L. dolichopterus and L. fimbriata are allopatric and hybridization may not be possible, we suggest that the observed paraphyly of L. fimbriata is a product of incomplete lineage sorting. In addition, the reciprocal monophyly of J. sinensis and J. abbreviata could not be resolved. This may be the result of interspecific hybridization as these species occur sympatrically. However, incomplete lineage sorting may have caused the observed topology of the Jinshaia species. The data presented here illustrate the complex evolutionary history of the balitorine loach species: intergeneric hybridization and interspecific hybridization have likely occurred in this lineage. In addition, possible incomplete lineage sorting may further obscure the evolutionary history of this group. The complex relationships of the balitorine loaches provide a rich evolutionary system to study the creation of sympatric and sister species.
英文摘要: Tang, Q.-Y., Liu, S.-Q., Yu, D., Liu, H.-Z. & Danley, P.D. (2012) Mitochondrial capture and incomplete lineage sorting in the diversification of balitorine loaches (Cypriniformes, Balitoridae) revealed by mitochondrial and nuclear genes. Zoologica Scripta, 41, 233-247.
关键词[WOS]: INTROGRESSIVE HYBRIDIZATION ; MOLECULAR PHYLOGENY ; EVOLUTIONARY SIGNIFICANCE ; ANCIENT HYBRIDIZATION ; SEQUENCE ALIGNMENT ; POROUS GENOMES ; DNA ; TELEOSTEI ; CYPRINIDAE ; SOFTWARE
语种: 英语
WOS记录号: WOS:000302867800003
ISSN号: 0300-3256
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/16813
Appears in Collections:水生生物多样性与资源保护研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China
2.Baylor Univ, Dept Biol, Waco, TX 76798 USA

Recommended Citation:
Tang, Qiong-Ying; Liu, Si-Qing; Yu, Dan; Liu, Huan-Zhang; Danley, Patrick D..Mitochondrial capture and incomplete lineage sorting in the diversification of balitorine loaches (Cypriniformes, Balitoridae) revealed by mitochondrial and nuclear genes,ZOOLOGICA SCRIPTA,2012,41(3):233-247
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文件名: Mitochondrial capture and incomplete lineage sorting in the diversification of balitorine loaches (Cypriniformes, Balitoridae) revealed by mitochondrial and nuclear genes.pdf
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