Genetic variation and bidirectional gene flow in the riparian plant Miscanthus lutarioriparius, across its endemic range: implications for adaptive potential

doi:10.1111/gcbb.12278

CORC > 植物研究所 > 中国科学院植物研究所 > 系统与进化植物学国家重点实验室

	Genetic variation and bidirectional gene flow in the riparian plant Miscanthus lutarioriparius, across its endemic range: implications for adaptive potential
	Yan, Juan ; Zhu, Mingdong ; Liu, Wei 1; Xu, Qin 3,4; Zhu, Caiyun 1; Li, Jianqiang ; Sang, Tao 1,3,4
刊名	GLOBAL CHANGE BIOLOGY BIOENERGY
	2016
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
文献子类	Article
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.
学科主题	Agronomy ; Biotechnology & Applied Microbiology ; Energy & Fuels
电子版国际标准刊号	1757-1707
出版地	HOBOKEN
WOS关键词	POPULATION-STRUCTURE ; ENERGY CROPS ; MIGRATION PATTERNS ; LANDSCAPE GENETICS ; BAYESIAN METHOD ; LOESS PLATEAU ; DIVERSITY ; DIFFERENTIATION ; ADAPTATION ; DISPERSAL
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	WILEY
WOS记录号	WOS:000378434700006
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [NSFC91131902] ; Knowledge Innovation Program of the Chinese Academy of SciencesChinese Academy of SciencesKnowledge Innovation Program of the Chinese Academy of Sciences [KSCX2-EX-QR-1] ; Screening and Demonstration of High-Resistant Bioenergy Plants in Marginal Land [2013BAD22B02]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/25048]
专题	系统与进化植物学国家重点实验室
作者单位	1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan 430074, Hubei, 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, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Yan, Juan,Zhu, Mingdong,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	Yan, Juan.,Zhu, Mingdong.,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	Yan, Juan,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.