Genetic variation and bidirectional gene flow in the riparian plant Miscanthus lutarioriparius, across its endemic range: implications for adaptive potential
文献类型：期刊论文
| 作者 | Zhu, Mingdong4; Yan, Juan4; Liu, Wei1; Xu, Qin2,3; Zhu, Caiyun1; Li, Jianqiang4; Sang, Tao1,2,3 |
| 刊名 | GLOBAL CHANGE BIOLOGY BIOENERGY
 |
| 出版日期 | 2016-07-01 |
| 卷号 | 8期号:4页码:764-776 |
| 关键词 | bidirectional migration genetic connectivity genetic diversity microsatellite Miscanthus lutarioriparius Yangtze River |
| ISSN号 | 1757-1693 |
| DOI | 10.1111/gcbb.12278 |
| 英文摘要 | Miscanthus lutarioriparius is an endemic species that grows along the middle and lower reaches of the Yangtze River and is a valuable source of germplasm for the development of second-generation energy crops. The plant that propagates via seeds, stem nodes, and rhizomes shows high phenotypic variation and strong local adaptation. Here, we examined the magnitude and spatial distribution of genetic variation in M. lutarioriparius across its entire distributional range and tested underlying factors that shaped its genetic variation. Population genetic analyses were conducted on 644 individuals from 25 populations using 16 microsatellite markers. M. lutarioriparius exhibited a high level of genetic variation (H-E=0.682-0.786; A(r)=4.74-8.06) and a low differentiation (F-ST=0.063; D-est=0.153). Of the total genetic variation, 10% was attributed to the differences among populations (df=24, P<0.0001), whereas 90% was attributed to the differences among individuals (df=619, P0.0001). Genetic diversity did not differ significantly across longitudes and did not increase in the populations growing downstream of the Yangtze River. However, significant associations were found between genetic differentiation and spatial distance. Six genetic discontinuities were identified, which mostly distributed among downstream populations. We conclude that anthropogenic factors and landscape features both contributed to shaping the pattern of gene flow in M. lutarioriparius, including long-distance bidirectional dispersal. Our results explain the genetic basis of the high degree of adaptability in M. lutarioriparius and identify potential sources of new germplasm for the domestication of this potential second-generation energy crop. |
| 资助项目 | National Natural Science Foundation of China[NSFC91131902] ; Knowledge Innovation Program of the Chinese Academy of Sciences[KSCX2-EX-QR-1] ; Screening and Demonstration of High-Resistant Bioenergy Plants in Marginal Land[2013BAD22B02] |
| WOS研究方向 | Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000378434700006 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/53]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Li, Jianqiang; Sang, Tao |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 2.Chinese Acad Sci, Beijing Bot Garden, Inst Bot, Beijing 100093, Peoples R China 3.Chinese Acad Sci, Key Lab Plant Resources, Inst Bot, Beijing 100093, Peoples R China 4.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan 430074, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Mingdong,Yan, Juan,Liu, Wei,et al. Genetic variation and bidirectional gene flow in the riparian plant Miscanthus lutarioriparius, across its endemic range: implications for adaptive potential[J]. GLOBAL CHANGE BIOLOGY BIOENERGY,2016,8(4):764-776. |
| APA | Zhu, Mingdong.,Yan, Juan.,Liu, Wei.,Xu, Qin.,Zhu, Caiyun.,...&Sang, Tao.(2016).Genetic variation and bidirectional gene flow in the riparian plant Miscanthus lutarioriparius, across its endemic range: implications for adaptive potential.GLOBAL CHANGE BIOLOGY BIOENERGY,8(4),764-776. |
| MLA | Zhu, Mingdong,et al."Genetic variation and bidirectional gene flow in the riparian plant Miscanthus lutarioriparius, across its endemic range: implications for adaptive potential".GLOBAL CHANGE BIOLOGY BIOENERGY 8.4(2016):764-776. |
入库方式： OAI收割
来源：武汉植物园
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