Fine-Scale Spatial Genetic Structure in Emmer Wheat and the Role of Population Range Position

CORC > 昆明植物研究所 > 中国科学院昆明植物研究所 > 中国科学院东亚植物多样性与生物地理学重点实验室

	Fine-Scale Spatial Genetic Structure in Emmer Wheat and the Role of Population Range Position
	Volis, Sergei 1; Song, Minshu 1; Zhang, Yong-Hong 2; Shulgina, Irina 1
刊名	EVOLUTIONARY BIOLOGY
	2014-03-01
卷号	41 期号:1 页码:166-173
关键词	Gene flow Neighborhood size Pollen flow Sp statistics Spatial autocorrelation
ISSN号	0071-3260
通讯作者	Volis,S (reprint author),Chinese Acad Sci,Kunming Inst Bot,Key Lab Biodivers & Biogeog,Kunming 650204,Peoples R China. ; volis@bgu.ac.il
英文摘要	The extent of spatial genetic structure (SGS) within plant populations depends on seed and pollen dispersal distance, breeding type, level of self-fertilization and effective plant density. Self-fertilizing species with gravity-dispersed seeds are expected to have both small effective population sizes and low pollen movement leading to high genetic structure. Higher SGS can be expected in more patchy and peripheral populations because of lower plant density and population sizes, and lower intensity of gene flow. We tested these predictions analyzing SGS in two core and two peripheral populations of predominantly self-fertilizing emmer wheat. Analysis of SGS with 11 nuclear microsatellites revealed (1) a negative linear relationship between kinship coefficients, calculated for pairs of individuals, and the logarithm of geographical distance between members of the pairs, in all studied populations; and (2) a significant autocorrelation for a distance up to 5 m (core populations) or 20 m (peripheral populations). Pollen flow, estimated from comparison of nuclear and chloroplast variation, was spatially limited, as was seed dispersal. Our results support a hypothesized relationship between SGS intensity and breeding system, the mode of seed dispersal and the population range position (core vs. periphery).
学科主题	Evolutionary Biology
类目[WOS]	Evolutionary Biology
研究领域[WOS]	Evolutionary Biology
关键词[WOS]	SYMPATRIC FOREST HERBS ; WILD TETRAPLOID WHEAT ; SEED DISPERSAL ; TRITICUM-DICOCCOIDES ; MICROSATELLITE LOCI ; PLANT-POPULATIONS ; NATURAL-SELECTION ; NEIGHBORHOOD SIZE ; CORE POPULATIONS ; POLLEN
收录类别	SCI
资助信息	Israel Academy of Sciences [ISF 958/07]
语种	英语
WOS记录号	WOS:000331646000016
公开日期	2014-04-09
内容类型	期刊论文
源URL	[http://ir.kib.ac.cn/handle/151853/17957]
专题	昆明植物研究所_中国科学院东亚植物多样性与生物地理学重点实验室
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Peoples R China 2.Yunnan Normal Univ, Dept Life Sci, Kunming 650204, Peoples R China
推荐引用方式 GB/T 7714	Volis, Sergei,Song, Minshu,Zhang, Yong-Hong,et al. Fine-Scale Spatial Genetic Structure in Emmer Wheat and the Role of Population Range Position[J]. EVOLUTIONARY BIOLOGY,2014,41(1):166-173.
APA	Volis, Sergei,Song, Minshu,Zhang, Yong-Hong,&Shulgina, Irina.(2014).Fine-Scale Spatial Genetic Structure in Emmer Wheat and the Role of Population Range Position.EVOLUTIONARY BIOLOGY,41(1),166-173.
MLA	Volis, Sergei,et al."Fine-Scale Spatial Genetic Structure in Emmer Wheat and the Role of Population Range Position".EVOLUTIONARY BIOLOGY 41.1(2014):166-173.