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Construction Strategy of Core Collection Based on Leaf Phenotypic Traits of Tetracentron sinense / 基于水青树叶表型性状的核心种质资源库构建策略
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Construction Strategy of Core Collection Based on Leaf Phenotypic Traits of Tetracentron sinense / 基于水青树叶表型性状的核心种质资源库构建策略
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Construction Strategy of Core Collection Based on Leaf Phenotypic Traits of Tetracentron sinense / 基于水青树叶表型性状的核心种质资源库构建策略
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Journal Article
Construction Strategy of Core Collection Based on Leaf Phenotypic Traits of Tetracentron sinense / 基于水青树叶表型性状的核心种质资源库构建策略
2019
Overview
[Objective] To construct the core collection bank of Tetracentron sinense.[Method] Taking 161 germplasm of T. sinense as samples, the genetic variation data of leaf phenotypic characters of T. sinense were studied. First, the methods of Euclidean distance and Wald were used to cluster all individuals step by step. Second, 10 sampling ratios (10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, and 55%) were set, and then their core collection were screened by random sampling strategy, deviation sampling strategy and allele preferred sampling strategy. The germplasm resource banks constructed under different sampling strategies were compared and then the optimum core collection was screened out.[Result] (1) Among the three sampling strategies, the allele preferred sampling strategy significantly increased the percentage of variance difference (VD), the variation rate of coefficient of variation(VR) and the coincidence rate of range difference (CR) in core collection. 45% is the most suitable sampling ratio to construc
Publisher
Chinese Academy of Forestry
Subject
