摘要
研究了夏播菜用大豆感官品质性状核心种质构建的方法.以全国菜用大豆主产区的菜用大豆初选核心种质154份品种为材料,依据感官品质性状,采用系统聚类方法构建了由36份材料组成的夏播菜用大豆感官品质性状核心种质,并将构建的核心种质与原有种质进行遗传资源代表性及表型相关分析,结果表明,核心种质较好地保持了原有种质的遗传多样性和复杂性.在品质育种过程中,特异性状核心种质的构建可为有效利用种质资源提供一种便利有效的辅助方法.
A method of core collection construction for sensory quality traits of summer-planted vegetable soybean was investigated. A core collection, consisting of 36 summer-planted vegetable soybeans, was established by hierarchical cluster method with seven sensory quality traits (100-pod fresh weight, 100-seed fresh weight, seed number per pod, pod length, pod width, pod thickness, soluble sugar content) from 154 priary core accessions of vegetable soybean in the main production regions of China. Five parameters, namely, mean, range, variance, coefficient of variation and phenotypic correlation, were used to validate representative of the core collection. The result showed that the core collection for sensory quality traits well retained the genetic diversity and genetic complexity of the primary core accessions. The core collection for special traits may serve as an supplementary method for selecting excellent accession in quality breeding.
出处
《浙江大学学报(农业与生命科学版)》
CAS
CSCD
北大核心
2005年第3期288-292,共5页
Journal of Zhejiang University:Agriculture and Life Sciences
基金
国家自然科学基金项目(30270759)
安徽省教育厅自然科学基金资助项目(2004kj158).
关键词
菜用大豆
品质性状
核心种质
多样性
构建方法
vegetable soybean
quality traits
core collection
diversity
construction method