艾呈祥;秦志华;王洁;王长君;安淼;

• 1:山东省果树研究所

摘要(Abstract)：

【目的】从分子水平了解山东牛心柿群体的遗传结构和亲缘关系。【方法】采用SSR分子标记技术对山东省内的8个牛心柿群体共207个个体进行检测,应用POPGENE 1.31软件进行遗传参数分析,采用AREQUIN 2.0软件对群体间和群体内的遗传变异进行分子变异分析,利用TFPGA软件对Nei’s无偏差预期杂合度和基因分化系数进行了统计计算。【结果】10对SSR引物共检测到128个位点,其中105个位点为多态位点,占82%。Nei’s遗传多样性指数(He)在0.153 8~0.247 6,Shannon信息指数(H0)在0.221 7~0.372 1。群体间的遗传变异占总遗传变异的24.17%(P<0.001),群体间的遗传距离(D<0.231 7)、遗传一致度(I>0.783 2)、基因分化系数(φST=0.222 6)和遗传分化系数(FST=0.175 9)均表明各群体间产生了一定程度的遗传分化。【结论】山东牛心柿群体遗传背景丰富,群体间一定程度的遗传分化可能是人为选择压力所引起。

关键词(KeyWords)： 牛心柿;SSR;遗传多样性;聚类分析

Abstract:

Keywords:

基金项目(Foundation): “十二五”农村领域国家科技计划项目(2013BAD14B05);; 山东省农业良种工程(2010lz010)

作者(Author): 艾呈祥;秦志华;王洁;王长君;安淼;

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