Evolutionary history of a desert perennial Arnebia szechenyi (Boraginaceae): Intraspecific divergence, regional expansion and asymmetric gene flow
文献类型：期刊论文
| 作者 | Fu,Meng-Jiao; Wu,Hai-Yang; Jia,Dong-Rui; Tian,Bin |
| 刊名 | PLANT DIVERSITY
 |
| 出版日期 | 2021 |
| 卷号 | 43期号:6页码:462-471 |
| 关键词 | Asymmetric gene flow Cytonuclear discordance Desert growth Intraspecific divergence MITOCHONDRIAL-DNA ENVIRONMENTAL-CHANGE POPULATION-GENETICS STATISTICAL TESTS DRILL CORE PHYLOGEOGRAPHY CHLOROPLAST QUATERNARY CHINA CONSEQUENCES |
| ISSN号 | 2096-2703 |
| DOI | 10.1016/j.pld.2021.04.002 |
| 英文摘要 | The complex interactions of historical, geological and climatic events on plant evolution have been an important research focus for many years. However, the role of desert formation and expansion in shaping the genetic structures and demographic histories of plants occurring in arid areas has not been well explored. In the present study, we investigated the phylogeography of Arnebia szechenyi, a desert herb showing a near-circular distribution surrounding the Tengger Desert in Northwest China. We measured genetic diversity of populations using three maternally inherited chloroplast DNA (cpDNA) fragments and seven bi-paternally inherited nuclear DNA (nDNA) loci that were sequenced from individuals collected from 16 natural populations across its range and modelled current and historical potential habitats of the species. Our data indicated a considerably high level of genetic variation within A. szechenyi and noteworthy asymmetry in historical migration from the east to the west. Moreover, two nuclear genetic groups of populations were revealed, corresponding to the two geographic regions separated by the Tengger Desert. However, analysis of cpDNA data did not show significant geographic structure. The most plausible explanation for the discrepancy between our findings based on cpDNA and nDNA data is that A. szechenyi populations experienced long periods of geographic isolation followed by range expansion, which would have promoted generalized recombination of the nuclear genome. Our findings further highlight the important role that the Tengger Desert, together with the Helan Mountains, has played in the evolution of desert plants and the preservation of biodiversity in arid Northwest China. Copyright (c) 2021 Kunming Institute of Botany, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| WOS记录号 | WOS:000735917400004 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/73276]  |
| 专题 | 中国科学院昆明植物研究所 |
| 作者单位 | 1.Yunnan Univ, Yunnan Key Lab Plateau Mt Ecol & Restorat Degrade, Kunming 650091, Yunnan, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, CAS Key Lab Plant Divers & Biogeog, Kunming 650204, Yunnan, Peoples R China 3.Yunnan Univ, Sch Ecol & Environm Sci, Kunming 650091, Yunnan, Peoples R China 4.Southwest Forestry Univ, Key Lab Forest Resources Conservat & Utilizat Sou, Minist Educ, Kunming 650224, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fu,Meng-Jiao,Wu,Hai-Yang,Jia,Dong-Rui,et al. Evolutionary history of a desert perennial Arnebia szechenyi (Boraginaceae): Intraspecific divergence, regional expansion and asymmetric gene flow[J]. PLANT DIVERSITY,2021,43(6):462-471. |
| APA | Fu,Meng-Jiao,Wu,Hai-Yang,Jia,Dong-Rui,&Tian,Bin.(2021).Evolutionary history of a desert perennial Arnebia szechenyi (Boraginaceae): Intraspecific divergence, regional expansion and asymmetric gene flow.PLANT DIVERSITY,43(6),462-471. |
| MLA | Fu,Meng-Jiao,et al."Evolutionary history of a desert perennial Arnebia szechenyi (Boraginaceae): Intraspecific divergence, regional expansion and asymmetric gene flow".PLANT DIVERSITY 43.6(2021):462-471. |
入库方式： OAI收割
来源：昆明植物研究所
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