干旱区生态环境知识资源中心(Arid): Allopatric divergence and regional range expansion of Juniperus sabina in China

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	Allopatric divergence and regional range expansion of Juniperus sabina in China
	Guo Yupeng; Zhang Ru; Chen Cuiyun; Zhou Dangwei; Liu Jianquan
来源期刊	Journal of Systematics and Evolution
ISSN	1674-4918
出版年	2010
卷号	48 期号:3 页码:153-160
英文摘要	In this study, we aimed to study the phylogeographic pattern of Juniperus sabina, a shrub species commonly occurring in the northern, northwestern and western China. We sequenced three chloroplast DNA fragments (trnL-trnF, trnS-trnG, and trnD-trnT) for 137 individuals from 16 populations of this species. Five chloroplast DNA chlorotypes (A, B, C, D, and E) were identified and they showed no overlapping distribution. The population subdivision is very high (G_(ST) = 0.926, N_(ST)= 0.980), suggesting a distinct phylogeographic structure (N_(ST) < G_(ST), P > 0.05). Phylogenetic analyses of the five chlorotypes were clustered into three clades, consistent with their respective distributions in three separate regions: northern Xinjiang, western Xinjiang, and northernnorthwestern China. However, within each region, the interpopulation differentiation is extremely low. These results as well as statistical tests suggested distinct allopatric differentiations between regional populations and independent glacial refugia for postglacial recolonization. The deserts that developed during the late Quaternary might have acted as effective barriers to promote genetic differentiation among these regions. However, the low diversity dominated by the single chlorotype within each fragmented region suggested that all current populations were derived from a common regional range expansion.
英文关键词	cpDNA genetic diversity Juniperus sabina phylogeography range expansion
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Forestry
CSCD记录号	CSCD:3894499
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335059
作者单位	Guo Yupeng, Lanzhou University, Division of Molecular Ecology, Key Laboratory of Arid and Grassland Ecology, School of Life Sciences, Lanzhou, Gansu 730000, China.; Zhang Ru, Lanzhou University, Division of Molecular Ecology, Key Laboratory of Arid and Grassland Ecology, School of Life Sciences, Lanzhou, Gansu 730000, China.; Chen Cuiyun, Lanzhou University, Division of Molecular Ecology, Key Laboratory of Arid and Grassland Ecology, School of Life Sciences, Lanzhou, Gansu 730000, China.; Liu Jianquan, Lanzhou University, Division of Molecular Ecology, Key Laboratory of Arid and Grassland Ecology, School of Life Sciences, Lanzhou, Gansu 730000, China.; Zhou Dangwei, Chinese Academy of Sciences, Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Xining, Qinghai 810000, China.
推荐引用方式 GB/T 7714	Guo Yupeng,Zhang Ru,Chen Cuiyun,et al. Allopatric divergence and regional range expansion of Juniperus sabina in China[J],2010,48(3):153-160.
APA	Guo Yupeng,Zhang Ru,Chen Cuiyun,Zhou Dangwei,&Liu Jianquan.(2010).Allopatric divergence and regional range expansion of Juniperus sabina in China.Journal of Systematics and Evolution,48(3),153-160.
MLA	Guo Yupeng,et al."Allopatric divergence and regional range expansion of Juniperus sabina in China".Journal of Systematics and Evolution 48.3(2010):153-160.