贵州农业科学2026，Vol.54Issue(9)：20-31,12.DOI:10.3969/j.issn.1001-3601.2026.09.003
紫苏F2:3家系农艺性状的数量遗传分析
Quantitative Genetic Analysis of Agronomic Traits in F2:3 Population of Perilla frutescens
摘要
Abstract
[Objective]The quantitative inheritance laws of plant height,internodes,branches,main spike length,grains per main spike,spikes per plant,biomass per plant,yield per plant and thousand-grain weight of Perilla frutescens F2:3 family were analyzed to provide a reference for breeding new Perilla varieties.[Method]9 agronomic traits of the F2:3 family structured from the cross combination of Z028 with small seeds(female parent)×Z396 with big seeds(male parent)were determined,and the optimal genetic models and genetic parameters of various agronomic traits were screened and estimated by using the major gene+polygene mixed inheritance model.[Result]The optimal genetic model for plant height,spikes per plant,biomass per plant and internodes of P.frutescens F2:3 was 2MG-ADI and controlled by two pairs of additive-dominant-epistatic major genes.The optimal genetic model for branches was 1MG-NCD and controlled by a pair of negative complete dominant major genes.The optimal genetic model for main spike length,grains per main spike,yield per plant and thousand-grain weight was MX2-ADI-ADI and controlled by two pairs of additive-dominant-epistatic major genes plus additive-dominant-epistatic polygenes.[Conclusion]Plant height,main spike length,yield per plant and thousand-grain weight of P.frutescens F2:3 family are of high heritability with stable inheritance and minimal influence from environmental factors,which indicates that the improvement of four traits should be given priority attention in breeding P.frutescens.In contrast,the branch number is of low heritability with unstable inheritance in offspring and greater influence from environmental factors.关键词
紫苏/农艺性状/主基因/多基因/数量遗传/遗传模型/遗传率Key words
Perilla frutescens/agronomic traits/major gene/polygene/quantitative inheritance/genetic model/heritability分类
农业科技引用本文复制引用
温贺,杨森,李星悦,商志伟,郭平,张恒,余顺波..紫苏F2:3家系农艺性状的数量遗传分析[J].贵州农业科学,2026,54(9):20-31,12.基金项目
贵州省农业科学院油菜研究所科研创新项目"紫苏重要性状定位及高α-亚麻酸品系的选育推广"(油研科技创新[2025]11号),"紫苏套种玉米栽培技术的研究与应用"(油研 JBGS[2025]10号),"基于BSA和转录组分析发掘紫苏醛合成相关优异基因"(油研 JBGS[2025]04号) （油研科技创新[2025]11号）
贵州省科技支撑计划项目"高价值籽用型紫苏新品种(系)选育及应用研究"(黔科合支撑[2023]一般059),"山地幼龄茶园间作紫苏生态增效模式应用研究"(黔科合支撑[2023]一般067) （系）
贵州省农业科学院种质资源项目"油菜(紫苏)种质资源收集保护、鉴定及创新利用"(黔农科种质资源[2023]15号) （紫苏）
铜仁市科技计划项目"药食同源紫苏大健康产品开发研究"(铜市科研[2023]73号) （铜市科研[2023]73号）
