Phylogeography of the ring-necked pheasant (Phasianus colchicus) in China
Phylogeography of the ring-necked pheasant (Phasianus colchicus) in China
复制标题
中国环颈雉的系统发育地理学
DOI：
10.1016/j.ympev.2009.03.015
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发表时间：
2009-07-01
影响因子：
4.1
通讯作者：
Wang, Xiaoli
中科院分区：
文献类型：
--
作者：
Qu, Jiangyong;Liu, Naifa;Wang, Xiaoli
环颈雉在我国分布广泛。利用线粒体DNA控制区数据对139只环颈雉的起源和过去的人口变化进行了研究。共测定了线粒体DNA控制区1078个核苷酸的序列，88个多态位点定义了102个单倍型。结果表明，各种群均具有较高的遗传多样性，这可能与其广泛的生态分布和生态位变异有关。所有单倍型的系统发育分析确定了五个主要分支。灰腰雉鸡的单倍型存在于3个分支：A（西部分支）、B（东部分支）和C（四川盆地分支）。柯尔克孜山鸡的两个单倍型属于B分支，其余单倍型组成D分支。白翅雉只有一个单倍型组成进化枝E。AMOVA分析结果表明，各群体间的基因流较低（Nm = 0.44），遗传分化显著（Fst = 0.31，P < 0.001）。根据分歧发生的时间，推测晚更新世环颈雉的分歧可能是青藏高原隆升、秦岭和六盘山的存在、四川盆地的孤立等三个事件的结果。非显著性错配分布分析强烈证实了人口统计学人群扩张。所描述的环颈雉的亚种不能支持的地理结构。(C)2009 Elsevier Inc. All rights reserved.
The ring-necked pheasants (Phasianus colchicus) are widely distributed in China. We used mitochondrial DNA control-region data to investigate the origin and past demographic changes in 139 ring-necked pheasants (P. colchicus) sampled from the species' distribution range. A total of 1078 nucleotides from the control region of mitochondrial DNA were sequenced, and 88 polymorphic positions defined 102 haplotypes. High level of genetic diversity was detected in all populations studied which could be associated with the wide ecological distributions and niche variation. Phylogenetic analyses of all haplotypes identified five major clades. The haplotypes of Gray-rumped Pheasants existed in the three clades: A (western clade), B (eastern clade) and C (Sichuan Basin clade). Two haplotypes of Kirghiz Pheasants were in the clade B, and the rest haplotype of Kirghiz Pheasants formed the clade D. Only one haplotype from White-winged Pheasants made up clade E. The results of AMOVA showed a low gene flow (Nm = 0.44) and significant genetic differentiation (Fst = 0.31, P < 0.001) among all populations. Based on the divergence time, we speculate that the divergence of the ring-necked pheasant occurring in the late Pleistocene may have resulted from three events: (1) the uplift of Qinghai-Tibet Plateau, (2) the existence of Qinling Mountains and Liupan Mountains, (3) the isolation of Sichuan Basin. Demographic population expansion was strongly confirmed by the non-significant mismatch distribution analysis. The described subspecies of the ring-necked pheasant could not be supported by the phylogeographical structuring. (C) 2009 Elsevier Inc. All rights reserved.