Fine-Scale Spatial Genetic Structure in Emmer Wheat and the Role of Population Range Position
Volis, Sergei1; Song, Minshu1; Zhang, Yong-Hong2; Shulgina, Irina1
Corresponding AuthorVolis,S (reprint author),Chinese Acad Sci,Kunming Inst Bot,Key Lab Biodivers & Biogeog,Kunming 650204,Peoples R China. ; volis@bgu.ac.il
2014-03-01
Source PublicationEVOLUTIONARY BIOLOGY
ISSN0071-3260
Volume41Issue:1Pages:166-173
AbstractThe 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).
KeywordGene Flow Neighborhood Size Pollen Flow Sp Statistics Spatial Autocorrelation
Subject AreaEvolutionary Biology
DOI10.1007/s11692-013-9256-1
Indexed BySCI
Language英语
WOS Research AreaEvolutionary Biology
WOS SubjectEvolutionary Biology
WOS IDWOS:000331646000016
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/17957
Collection中国科学院东亚植物多样性与生物地理学重点实验室
Affiliation1.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
Recommended Citation
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.
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