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学科主题: Biochemistry & Molecular Biology; Evolutionary Biology; Genetics & Heredity
题名: Molecular phylogeography of endangered sharp-snouted pitviper (Deinagkistrodon acutus; Reptilia, Viperidae) in Mainland China
作者: Huang, Song; He, Shunping; Peng, Zuogang; Zhao, Kai; Zhao, Ermi
通讯作者: He, SP, Sichuan Univ, Sch Life Sci, Chengdu 610064, Peoples R China
关键词: phylogeography ; Deinagkistrodon acutus ; Reptilia ; ND2 ; isolation ; dispersal ; expansion ; conservation
刊名: MOLECULAR PHYLOGENETICS AND EVOLUTION
发表日期: 2007-09-01
DOI: 10.1016/j.ympev.2007.05.019
卷: 44, 期:3, 页:942-952
收录类别: SCI
文章类型: Article
部门归属: Sichuan Univ, Sch Life Sci, Chengdu 610064, Peoples R China; Chinese Acad Sci, Inst Hydrobiol, Lab Fish Phylogenet & Biogeog, Wuhan 430072, Peoples R China; Huangshan Univ, Dept Biol, Huangshan 245021, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
研究领域[WOS]: Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
摘要: Using phylogenetic and population genetic approaches, the present study reports the phylogeographic structure of the sharp-snouted pitviper (Deinagkistrodon acutus), a threatened snake species with commercial and medicinal importance in China. The entire mitochondrial ND2 gene (NADH dehydrogenase subunit 2) sequences of 86 individuals of D. acutus from 14 localities across its range in China were determined. Based on the results of phylogenetic analyses, distribution of diagnostic sites, haplotype network, and AMOVA hierarchical analysis, an cast-west division of the whole D. acutus population could be observed. Geographically, a line formed by a lake, river, and mountain chain (the Poyang Lake, Gan River to the southern end of the Wuyi Mountains), results in vicariance and approximately vertically splits the range into two and the whole population into two main lineages (western and eastern). The bifurcating tree suggested generally west to east dispersal trend. The data fit the isolation by distance (IBD) model well. Star-like clusters in haplotype network, significantly negative values of Fs statistics, and unimodal mismatch distributions all suggest recent demographic expansions in four areas. The results show that isolation, dispersal, bottleneck, and expansion jointly constitute the history of D. acutus. In a haplotype network, the excessive predominance of central haplotypes, few medium-frequency haplotypes, predominance (73.1 %) of the singletons among the derived haplotypes, most of which are connected to the central haplotype by only one mutational step, unsymmetrical campanulate unimodal curve of mismatch distributions and leftwards shift of the peaks, all suggest that the whole D. acutus population is a young population with low genetic diversity. Based on the data, the first priority for conservation action should be given to the Huangshan unit. (c) 2007 Elsevier Inc. All rights reserved.
英文摘要: Using phylogenetic and population genetic approaches, the present study reports the phylogeographic structure of the sharp-snouted pitviper (Deinagkistrodon acutus), a threatened snake species with commercial and medicinal importance in China. The entire mitochondrial ND2 gene (NADH dehydrogenase subunit 2) sequences of 86 individuals of D. acutus from 14 localities across its range in China were determined. Based on the results of phylogenetic analyses, distribution of diagnostic sites, haplotype network, and AMOVA hierarchical analysis, an cast-west division of the whole D. acutus population could be observed. Geographically, a line formed by a lake, river, and mountain chain (the Poyang Lake, Gan River to the southern end of the Wuyi Mountains), results in vicariance and approximately vertically splits the range into two and the whole population into two main lineages (western and eastern). The bifurcating tree suggested generally west to east dispersal trend. The data fit the isolation by distance (IBD) model well. Star-like clusters in haplotype network, significantly negative values of Fs statistics, and unimodal mismatch distributions all suggest recent demographic expansions in four areas. The results show that isolation, dispersal, bottleneck, and expansion jointly constitute the history of D. acutus. In a haplotype network, the excessive predominance of central haplotypes, few medium-frequency haplotypes, predominance (73.1 %) of the singletons among the derived haplotypes, most of which are connected to the central haplotype by only one mutational step, unsymmetrical campanulate unimodal curve of mismatch distributions and leftwards shift of the peaks, all suggest that the whole D. acutus population is a young population with low genetic diversity. Based on the data, the first priority for conservation action should be given to the Huangshan unit. (c) 2007 Elsevier Inc. All rights reserved.
关键词[WOS]: MITOCHONDRIAL-DNA SEQUENCES ; PANDA AILURUS-FULGENS ; PHYLOGENETIC-RELATIONSHIPS ; EVOLUTIONARY PROCESSES ; POPULATION-GROWTH ; SPECIES GROUP ; CYTOCHROME-B ; CONSERVATION ; DISTANCE ; CYPRINIDAE
语种: 英语
WOS记录号: WOS:000249845400002
ISSN号: 1055-7903
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/8410
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Sichuan Univ, Sch Life Sci, Chengdu 610064, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Lab Fish Phylogenet & Biogeog, Wuhan 430072, Peoples R China
3.Huangshan Univ, Dept Biol, Huangshan 245021, Peoples R China

Recommended Citation:
Huang, Song; He, Shunping; Peng, Zuogang; Zhao, Kai; Zhao, Ermi.Molecular phylogeography of endangered sharp-snouted pitviper (Deinagkistrodon acutus; Reptilia, Viperidae) in Mainland China,MOLECULAR PHYLOGENETICS AND EVOLUTION,2007,44(3):942-952
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