Allopatric divergence and regional range expansion of Juniperus sabina in China
文献类型：期刊论文
| 作者 | Guu, Yu-Peng1; Zhang, Ru1; Chen, Cui-Yun1; Zhou, Dang-Wei2; Liu, Jian-Quan1 |
| 刊名 | JOURNAL OF SYSTEMATICS AND EVOLUTION
 |
| 出版日期 | 2010-05-01 |
| 卷号 | 48期号:3页码:153-160 |
| 关键词 | Cpdna Genetic Diversity Juniperus Sabina Phylogeography Range Expansion |
| ISSN号 | 1674-4918 |
| 文献子类 | Article |
| 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 northern-northwestern 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.; 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 northern-northwestern 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. |
| WOS关键词 | QINGHAI-TIBETAN PLATEAU ; CHLOROPLAST DNA VARIATION ; NORTH-AMERICAN CONIFER ; MITOCHONDRIAL-DNA ; GLACIAL REFUGIA ; POSTGLACIAL RECOLONIZATION ; PHYLOGENETIC ANALYSIS ; NONCODING REGIONS ; UNIVERSAL PRIMERS ; ALPINE PLANTS |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000278085400001 |
| 公开日期 | 2011-12-13 |
| 源URL | [http://ir.nwipb.ac.cn//handle/363003/1714]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Lanzhou Univ, Sch Life Sci, Key Lab Arid & Grassland Ecol, Div Mol Ecol, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, NW Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guu, Yu-Peng,Zhang, Ru,Chen, Cui-Yun,et al. Allopatric divergence and regional range expansion of Juniperus sabina in China[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2010,48(3):153-160. |
| APA | Guu, Yu-Peng,Zhang, Ru,Chen, Cui-Yun,Zhou, Dang-Wei,&Liu, Jian-Quan.(2010).Allopatric divergence and regional range expansion of Juniperus sabina in China.JOURNAL OF SYSTEMATICS AND EVOLUTION,48(3),153-160. |
| MLA | Guu, Yu-Peng,et al."Allopatric divergence and regional range expansion of Juniperus sabina in China".JOURNAL OF SYSTEMATICS AND EVOLUTION 48.3(2010):153-160. |
入库方式： OAI收割
来源：西北高原生物研究所
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