中国稻米2024，Vol.30Issue(1)：18-25,8.DOI:10.3969/j.issn.1006-8082.2024.01.003
基于表型性状构建禾初级核心种质
Construction of Primary Core Collection of Rice'HE'Based on Phenotypic Traits
摘要
Abstract
'HE'is a rice landraces that adapts to the special natural habitat of shading,slough,cold and waterlogged in deep-valley and forests in the Qiandongnan mountainous areas in Guizhou.In this study,402 HE resources,divided into 5 groups based on the color differences of the glume tip,were used as materials.Based on the 26 phenotypic traits,the progressive clustering method was applied to screen out the optional sampling strategy by using 6 overall sampling scales,4 intra-group sampling ratios and 2 intra-group sampling methods,and to construct the primary core collection and evaluate it comprehensively.The results showed that 10％was the optimal overall sampling scale,the optimal intra-group sampling ratio method was the logarithmic ratio method,and the best intra-group sampling method was the cluster sampling method.Under the optimal sampling strategy,47 primary core collections of HE was obtained,accounting for 11.69％of the whole germplasm,and the retention rate of phenotype was 95.77％.The core collection constructed in this study could be a good representation of the genetic diversity of the original germplasm as a concentration of it.关键词
水稻/禾/表型性状/初级核心种质/取样策略Key words
rice/HE/phenotypic traits/primary core germplasm/sampling strategy分类
农业科技引用本文复制引用
毛名义,杨文荟,管艳伟,潘宗东,周丽洁,余显权..基于表型性状构建禾初级核心种质[J].中国稻米,2024,30(1):18-25,8.基金项目
国家自然科学基金(32260444) （32260444）
贵州省粮油作物分子育种重点实验室项目(黔科合中引地[2023]008) （黔科合中引地[2023]008）
贵州省科技计划项目(黔科合支撑[2022]重点026) （黔科合支撑[2022]重点026）
贵州省科技计划项目(黔科合成果[2023]一般033) （黔科合成果[2023]一般033）
贵州省高等学校功能农业重点实验室项目(黔教技[2023]007号) （黔教技[2023]007号）
