摘要
对四个不同地点（莱州，荣成，青岛和日照）的大连湾牡蛎（Ｃｒａｓｏｓｔｒｅａｔａｌｉｅｎｗｈａｎｅｎｓｉｓ）进行了ＲＡＰＤ分析，结果表明相邻两地种群的遗传距离不明显。地理相距越远，遗传距离越大。莱州种群中具有ＯＰＫ１１—６８５标记，日照种群具有ＯＰＫ１１—７８０标记。上述两地之间的青岛和荣成种群中，６２．５％的个体同时具有这两个标记；只有２０％的个体为ＯＰＫ—７８０标记。莱州和日照种群间的基因流动有一定的局限性。
The genetic diversity of four populations (Laizhou, Rongzheng, Qingdao and Rizhao) was studied by RAPD. The difference of genetic distances is not evident at neighboring locations. But the genetic distance increases with increasing geographic distance. Laizhou population has the RAPD marker OPK11-685, Rizhao population is with the marker OPK11-780. 62.5% of the individuals in the populations of Qingdao and Rongzheng between Laizhou and Rizhao are with both of the markers, while only 20% are with a marker OPK11-780. This suggests that the gene flow is restricted to a certain extent between Laizhou and Rizhao populations, but there is gene flow between the two locations. There are local populations in oyster, C.taliewhanensis.
基金
国家自然科学基金
关键词
牡蛎
种群
RAPD标记
基因流动
population
genetic distance
gene flow
RAPD
Crassostrea talienwhanensis
