【摘要】 通过分析37个SSR座位在琼海与三亚两普通野生稻(Oryzarufipogon)居群中的遗传变异,结果表明,SSR座位在三亚普通野生稻居群中的变异高于其在琼海普通野生稻居群中的变异。根据遗传相似性和遗传距离公式得到琼海与三亚普通野生稻居群间的遗传相似性为0.6385,遗传距离为0.4486cM。Wright的FST检验结果表明,这37个SSR座位在两居群之间存在着中等程度的遗传分化,FST=0.3909。此分化结果主要是由两居群间弱的基因漂移导致的(Nm=0.3895)。更多还原

【Abstract】 We studied variation in 37 simple sequence repeats (SSRs) in 2 populations of common wild rice Oryza rufipogon from Qionghai and Sanya in Hainan. SSRs had more genetic variability in the Sanya than in the Qionghai population. The genetic identity and distance between the 2 popula- tions were 0.6385 and 0.4486 cM, respectively. The result of Wright’s FST showed that 37 SSRs had moderate genetic differentiation within the Qionghai and Sanya populations, with an FST=0.3909, which was mainly caused by lower gene flow, with an Nm=0.3895.更多还原