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中原牡丹品种初级核心种质构建与代表性检验

DOI: 10.7668/hbnxb.2009.05.046, PP. 217-221

Keywords: 中原牡丹品种,初级核心种质,遗传多样性,构建,代表性

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Abstract:

以400个中原牡丹品种的形态学和农艺学性状为基本数据,采用花型分组,组内按平方根比例策略确定取样量,并使用类平均聚类法取样,获得了中原牡丹品种初级核心种质,其取样比例占总体样本的30%。经检测,初级核心种质与总体种质的31个性状中仅花期1个性状的多样性指数达到了显著差异水平,初级核心种质多样性指数对总体种质的代表性达99.20%,表型保留比例达到了100%。表明,这个包含120个样本的初级核心种质能在表型性状上很好地代表总体种质的遗传多样性。

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