The genetic structure of six-rowed naked barley landraces from the Qinghai-Tibetan Plateau is correlated with variation for ecogeographical factors
文献类型：期刊论文
| 作者 | Xia, Tengfei1,2; Chen, Shengyun3; Wang, Lei1,4; Xu, Jinqing1,2; Wang, Handong1,4; Zhang, Huaigang1,4; Liu, Dengcai5; Shen, Yuhu1,4 |
| 刊名 | CANADIAN JOURNAL OF PLANT SCIENCE
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 98期号:1页码:81-92 |
| 关键词 | Genetic Diversity Population Structure Outlier Loci Natural Selection Local Adaptation |
| DOI | 10.1139/cjps-2017-0132 |
| 英文摘要 | Genetic differentiation in natural populations is driven by geographic distance and by ecological features within and between natural habitats. Among the cereal species, barley is the most strongly adapted to the Qinghai-Tibetan Plateau (QTP). The objective of this study was to search for correlations between the genetic structure of QTP barley landraces and variation for ecogeographical factors. A set of 230 six-rowed naked barley landraces adapted to a wide range of ecological conditions in the QTP were genotyped using the Diversity Array Technology (DArT) platform. On this basis, two distinct populations and four subpopulations were recognized, each associated with a definable geographical distribution. Population structure appeared to be best correlated with altitude at the population level, but temperature and rainfall contributed markedly to the structure of sub-populations. Nine of the 22 outlier loci were identified as being under positive selection and related to traits potentially important for local adaptation. Some correlations between the variation in certain ecogeographical factors and allele frequency at particular DArT loci were observed. The identification of DArT markers potentially associated with adaptation traits should encourage the exploitation of this unique germplasm as a source of genetic variation relevant for barley improvement. |
| 语种 | 英语 |
| WOS记录号 | WOS:000424449800010 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/13329]  |
| 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.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, 23 Xinning Rd, Xining 810008, Qinghai, Peoples R China 2.Univ Chinese Acad Sci, 19 Jia, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryosphere Sci, Lanzhou 730000, Gansu, Peoples R China 4.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Crop Mol Breeding Qinghai Prov, 23 Xinning Rd, Xining 810008, Qinghai, Peoples R China 5.Sichuan Agr Univ, Triticeae Res Inst, Chengdu 611130, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia, Tengfei,Chen, Shengyun,Wang, Lei,et al. The genetic structure of six-rowed naked barley landraces from the Qinghai-Tibetan Plateau is correlated with variation for ecogeographical factors[J]. CANADIAN JOURNAL OF PLANT SCIENCE,2018,98(1):81-92. |
| APA | Xia, Tengfei.,Chen, Shengyun.,Wang, Lei.,Xu, Jinqing.,Wang, Handong.,...&Shen, Yuhu.(2018).The genetic structure of six-rowed naked barley landraces from the Qinghai-Tibetan Plateau is correlated with variation for ecogeographical factors.CANADIAN JOURNAL OF PLANT SCIENCE,98(1),81-92. |
| MLA | Xia, Tengfei,et al."The genetic structure of six-rowed naked barley landraces from the Qinghai-Tibetan Plateau is correlated with variation for ecogeographical factors".CANADIAN JOURNAL OF PLANT SCIENCE 98.1(2018):81-92. |
入库方式： OAI收割
来源：西北高原生物研究所
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