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首页> 外文期刊>African Journal of Biotechnology >Establishment of core collection from apricot germplasm in China
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Establishment of core collection from apricot germplasm in China

机译：中国杏种质核心种质的建立

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This study aimed at establishing a core collection based on the analysis of data from Simple Sequence Repeat (SSR) alleles and morphological and agronomical traits (MOR) of the primary core collection from apricot germplasm resources. The index of genetic diversity, and frequency ratios of retention and loss of the alleles were studied between cluster and random sampling methods at 5 sampling ratios. The results demonstrated that the cluster sampling method preceded random sampling, and cluster sampling of SSR combined with MOR at the rate of 80% was the best sampling strategy among all the sampling methods. Based on this sampling strategy, 120 accessions were selected as the core collection of apricot, which retained 100% alleles in the primary core collection and 100% phenotypic characters. The core collection developed had also been evaluated by using the data of 6 quantitative traits, which showed that the established core collection could well represent the genetic diversity of the original collection of 1501 apricot accessions.
机译：这项研究旨在基于对来自简单序列重复（SSR）等位基因的数据以及来自杏种质资源的主要核心种质的形态和农艺性状（MOR）进行分析来建立核心种质。研究了5种采样率下的聚类和随机采样方法之间的遗传多样性指数，以及等位基因的保留和丢失的频率比。结果表明，在随机抽样之前采用聚类抽样方法，在所有抽样方法中，以80％的比例结合SSR和MOR进行聚类抽样是最佳抽样策略。基于这种抽样策略，选择了120个种质作为杏的核心种质，在主要的核心种质中保留了100％等位基因和100％的表型特征。还通过使用6个数量性状的数据对开发的核心收藏进行了评估，结果表明，已建立的核心收藏可以很好地代表1501个杏种的原始收藏的遗传多样性。

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