饲料研究2025，Vol.48Issue(6)：122-126,5.DOI:10.13557/j.cnki.issn1002-2813.2025.06.022
饲料油菜植株粗蛋白含量的遗传规律研究
Study on genetic rule of crude protein content in forage rapeseed plants
摘要
Abstract
This study aimed to clarify the genetic rule of crude protein content in forage rapeseed plants,providing a theoretical foundation for the genetic improvement of high-protein forage rapeseed.Two parental materials,21SL-239 and 21SL-756,with significant differences in crude protein content,were used to construct six generations of genetic populations(P1,P2,F1,F2,B1 and B2).A mixed inheritance model combining major genes and polygenes was applied to analyze the genetic patterns of crude protein content in forage rapeseed plants at the bolting stage.The results showed that the optimal genetic model for crude protein content was PG-ADI,indicating polygenic control with additive,dominant,and epistatic effects.The heritability values for F2,B1,and B2 populations were 65.41％,57.94％,and 29.76％,respectively.The study indicates that crude protein content in forage rapeseed plants at the bolting stage is co-regulated by polygenes and environmental factors.Directional selection for crude protein content in the F2 population and the B1 population(using high-protein materials as recurrent parents)holds practical significance for genetic enhancement.关键词
饲料油菜/粗蛋白/主基因+多基因/遗传模型Key words
forage rapeseed/crude protein/major gene+polygene/genetic model分类
农业科技引用本文复制引用
张林,周凌,王涛,钟伟,吴宇瑶,陈建军,代文东..饲料油菜植株粗蛋白含量的遗传规律研究[J].饲料研究,2025,48(6):122-126,5.基金项目
贵州省科技计划项目(项目编号:黔科合基础项目-ZK[2022]一般289、黔科合支撑[2023]一般073、黔科合支撑[2023]一般060) （项目编号:黔科合基础项目-ZK[2022]一般289、黔科合支撑[2023]一般073、黔科合支撑[2023]一般060）
贵州省农业科学院青年基金项目(项目编号:黔农科院青年基金[2022]26号、黔农科青年基金[2023]33号) （项目编号:黔农科院青年基金[2022]26号、黔农科青年基金[2023]33号）
