Assessment of population genetic structure in common wild rice Oryza rufipogon Griff. using microsatellite and allozyme markers

文献类型： 外文期刊

第一作者： Gao, LZ

作者： Gao, LZ;Schaal, BA;Zhang, CH;Jia, JZ;Dong, YS

作者机构：

关键词： China;allozyme variation;microsatellite variation;Oryza rufipogon;population genetic structure

期刊名称：THEORETICAL AND APPLIED GENETICS （ 影响因子：5.699； 五年影响因子：5.565 ）

ISSN： 0040-5752

年卷期： 2002 年 106 卷 1 期

页码：

收录情况： SCI

摘要： The genetic structure of five natural populations of common wild rice Oryza rufipogon Griff. from China, was investigated with 21 microsatellite loci and compared to estimates of genetic diversity and genetic differentiation detected by 22 allozyme loci. Microsatellite loci, as expected, have much higher levels of genetic diversity (mean values of A = 3.1, P = 73.3%, Ho = 0.358 and He = 0.345) than allozyme loci (mean values of A = 1.2, P = 12.7%, Ho = 0.020 and He = 0.030). Genetic differentiation detected by microsatellite loci (F-ST = 0.468, mean I = 0.472) was higher than that for allozyme loci (F-ST =0.388, mean I = 0.976). However, microsatellite markers showed less deviation from Hardy-Weinberg expectation (Wright's inbreeding coefficient F-IS = -0.069) than do allozymes (F-IS = 0.337). These results suggest that microsatellite markers are powerful high-resolution tools for the accurate assessment of important parameters in population biology and conservation genetics of O. rufipogon, and offer advantages over allozyme markers.

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