Phylogeography of Schizothorax o'connori (Cyprinidae: Schizothoracinae) in the Yarlung Tsangpo River, Tibet

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	Phylogeography of Schizothorax o'connori (Cyprinidae: Schizothoracinae) in the Yarlung Tsangpo River, Tibet
	He, Dekui; Chen, Yifeng
刊名	HYDROBIOLOGIA
	2009-11-01
卷号	635 期号:1 页码:251-262
关键词	Cytochrome b Landscape features Genetic structure Range expansion Interglacial Yarlung Tsangpo Tibetan Plateau
ISSN号	0018-8158
通讯作者	Chen, YF, Chinese Acad Sci, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Hubei, Peoples R China
中文摘要	Schizothorax o'connori is endemic to the Yarlung Tsangpo River on the Tibetan Plateau. We assessed the relative impacts of historical and contemporary factors in organizing genetic variation in S. o'connori populations using mitochondrial cytochrome b sequences. We analyzed 191 samples from 11 populations and identified 78 haplotypes. The phylogenetic analyses and analysis of molecular variance all supported the same conclusions of two well-differentiated east-west phylogroups, separated by the Tsangpo Great Gorge. The split between the two clades accounted for 58% of the genetic variance observed among the examined samples. Waterfalls as effective barriers played an important role in shaping the phylogeographical structure of this species. Analyses of migration rates revealed that upstream dispersal was limited crossing waterfalls. Our study revealed substantial spatial and temporal variation in the influence of landscape features on contemporary patterns of genetic structure in S. o'connori. Interglacial range expansions clearly left their mark on contemporary populations above the Tsangpo Great Gorge.
英文摘要	Schizothorax o'connori is endemic to the Yarlung Tsangpo River on the Tibetan Plateau. We assessed the relative impacts of historical and contemporary factors in organizing genetic variation in S. o'connori populations using mitochondrial cytochrome b sequences. We analyzed 191 samples from 11 populations and identified 78 haplotypes. The phylogenetic analyses and analysis of molecular variance all supported the same conclusions of two well-differentiated east-west phylogroups, separated by the Tsangpo Great Gorge. The split between the two clades accounted for 58% of the genetic variance observed among the examined samples. Waterfalls as effective barriers played an important role in shaping the phylogeographical structure of this species. Analyses of migration rates revealed that upstream dispersal was limited crossing waterfalls. Our study revealed substantial spatial and temporal variation in the influence of landscape features on contemporary patterns of genetic structure in S. o'connori. Interglacial range expansions clearly left their mark on contemporary populations above the Tsangpo Great Gorge.
学科主题	Marine & Freshwater Biology
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Marine & Freshwater Biology
研究领域[WOS]	Marine & Freshwater Biology
关键词[WOS]	CYTOCHROME-B SEQUENCES ; GENETIC CONSEQUENCES ; INTEGRATED SOFTWARE ; MOLECULAR PHYLOGENY ; POPULATION-GENETICS ; ICE AGES ; EVOLUTION ; TROUT ; BIOGEOGRAPHY ; DIVERGENCE
收录类别	SCI
资助信息	National Basic Research Program of China [2007CB411601]; National Science Foundation of China [30670287]; Chinese Academy of Sciences [KSCX2-SW-125]; Research Project of Hubei Provincial Department of Education [Q20081802]
语种	英语
WOS记录号	WOS:000270652200023
公开日期	2010-10-13
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/152342/7550]
专题	水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文
作者单位	Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
推荐引用方式 GB/T 7714	He, Dekui,Chen, Yifeng. Phylogeography of Schizothorax o'connori (Cyprinidae: Schizothoracinae) in the Yarlung Tsangpo River, Tibet[J]. HYDROBIOLOGIA,2009,635(1):251-262.
APA	He, Dekui,&Chen, Yifeng.(2009).Phylogeography of Schizothorax o'connori (Cyprinidae: Schizothoracinae) in the Yarlung Tsangpo River, Tibet.HYDROBIOLOGIA,635(1),251-262.
MLA	He, Dekui,et al."Phylogeography of Schizothorax o'connori (Cyprinidae: Schizothoracinae) in the Yarlung Tsangpo River, Tibet".HYDROBIOLOGIA 635.1(2009):251-262.