数字农科院2.0

基于GWAS和BSA-seq挖掘辣椒果实中辣椒红色素含量的QTL区间及候选基因

文献类型: 中文期刊

作者: 班国梁;曹亚从;张正海;于海龙;吴华茂;李戎轩;赵红;张伟丽;聂智星;宋红霞;王立浩

作者机构:

关键词: 辣椒;辣椒红色素;GWAS;BSA-seq;QTL

期刊名称:中国蔬菜

ISSN: 1000-6346

年卷期: 2025 年

页码:

收录情况: 北大核心(2023版) ; ; 科技核心(2024版) ; ; 农林核心(2024版)

摘要: 辣椒红色素是目前全球销量最大的纯天然可食用色素,培育高辣椒红色素品种为辣椒产业重要任务。通过对255份一年生栽培种辣椒核心种质的辣椒红素含量进行全基因组关联分析(genome-wide association study,GWAS),在第1、2、3、5、6、8、9、10、11和12号染色体均关联到与辣椒红素含量显著相关的区间,关联区间内共包括93个基因,根据功能注释和转录表达数据预测了3个影响辣椒果实中辣椒红素含量的候选基因。通过对高辣椒红色素材料Pep-340、低辣椒红色素材料Pep-276构建的F2群体进行混合分组分析法-测序(bulked segregant analysis-sequencing,BSA-seq)分析,在第1、3、5和10号染色体定位到与辣椒红色素含量相关区间,其中第3和5号染色体上的定位区间与GWAS分析中的显著相关区间相近或重合;利用这两个区间的In Del分子标记,进行遗传连锁分析,将调控辣椒红色素含量基因定位在3号染色体的q CC3.1,物理位置为22.8~25.9 Mb,其中含有99个基因,根据功能注释和转录组分析,预测了4个影响辣椒果实中辣椒红色素含...

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