Environmental determinants of genetic diversity in Caragana microphylla (Fabaceae) in northern China
文献类型：期刊论文
| 作者 | Huang, Wen-Da; Zhao, Xue-Yong; Zhao, Xin; Li, Yu-Lin; Pan, Cheng-Chen |
| 刊名 | BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
 |
| 出版日期 | 2016-06-01 |
| 卷号 | 181期号:2页码:269-278 |
| 关键词 | desertification inter-simple sequence repeat rainfall restoration temperature |
| ISSN号 | 0024-4074 |
| DOI | 10.1111/boj.12407 |
| 通讯作者 | Huang, Wen-Da(huangwenda2008@163.com) |
| 英文摘要 | The sand-fixing shrub Caragana microphylla (Fabaceae) is extensively used for vegetation restoration in areas of northern China undergoing desertification. Although the understanding of its genetic variation and related determinants is an important component of plant conservation and ecological restoration in the face of a changing global environment, the relationship between genetic diversity in C. microphylla and climatic factors is unknown. In this study, we assessed population genetic variation in C. microphylla along temperature and humidity gradients in northern China using inter-simple sequence repeat (ISSR) markers. In general, high levels of genetic diversity were uncovered in the 13 populations studied. The number of polymorphic loci ranged from 14 to 63 and polymorphism percentages ranged from 8.75 to 39.38%. Observed and effective allele numbers were 1.09-1.40 and 1.06-1.30, respectively. Nei's genetic diversity index (h) was calculated as 0.0340-0.1663 and Shannon's diversity index (I) was 0.0502-0.2403. At the species level, h and I were 0.2579 and 0.3965, respectively. Populations from low hydrothermal level areas, experiencing severe desertification and habitat fragmentation, exhibited the greatest genetic diversity. Genetic diversity in C. microphylla was positively correlated with annual temperature range, cold index, mean annual rainfall and hydrothermal synthesis index, whereas a negative association was found with mean annual temperature. Using redundancy analysis, we found that mean annual rainfall and cold index explained 87.8% of observed genetic variation, suggesting that genetic diversity in C. microphylla depends primarily on these two factors. Our data are relevant to the restoration and management of degraded ecosystems in arid and semiarid regions. (C) 2016 The Linnean Society of London |
| 收录类别 | SCI |
| WOS关键词 | HORQIN SANDY LAND ; CLIMATE-CHANGE ; ARTEMISIA-HALODENDRON ; LOCAL ADAPTATION ; INNER-MONGOLIA ; POPULATIONS ; GRASSLAND ; DIFFERENTIATION ; RESPONSES ; CONSERVATION |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000379600300007 |
| 出版者 | WILEY-BLACKWELL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557221 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Huang, Wen-Da |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Wen-Da,Zhao, Xue-Yong,Zhao, Xin,et al. Environmental determinants of genetic diversity in Caragana microphylla (Fabaceae) in northern China[J]. BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,2016,181(2):269-278. |
| APA | Huang, Wen-Da,Zhao, Xue-Yong,Zhao, Xin,Li, Yu-Lin,&Pan, Cheng-Chen.(2016).Environmental determinants of genetic diversity in Caragana microphylla (Fabaceae) in northern China.BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,181(2),269-278. |
| MLA | Huang, Wen-Da,et al."Environmental determinants of genetic diversity in Caragana microphylla (Fabaceae) in northern China".BOTANICAL JOURNAL OF THE LINNEAN SOCIETY 181.2(2016):269-278. |
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来源：寒区旱区环境与工程研究所
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