| Fine-Scale Spatial Genetic Structure in Emmer Wheat and the Role of Population Range Position | |
| Volis, Sergei1; Song, Minshu1; Zhang, Yong-Hong2; Shulgina, Irina1 | |
| 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 |
| 2014-03-01 | |
| 发表期刊 | EVOLUTIONARY BIOLOGY
 |
| ISSN | 0071-3260 |
| 卷号 | 41期号:1页码:166-173 |
| 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). |
| 关键词 | Gene Flow Neighborhood Size Pollen Flow Sp Statistics Spatial Autocorrelation |
| 学科领域 | Evolutionary Biology |
| DOI | 10.1007/s11692-013-9256-1 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000331646000016 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kib.ac.cn/handle/151853/17957 |
| 专题 | 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. |
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