花生学报2025，Vol.54Issue(4)：368-373,6.DOI:10.14001/j.issn.1002-4093.2025.04.002
花生熟性性状的主基因+多基因遗传模型分析
Analysis of the Major Gene+Polygene Genetic Model for Peanut Maturity Traits
摘要
Abstract
The maturity of peanuts plays an irreplaceable role in further exploring the potential for expanding peanut cultivation in high-altitude and high-latitude regions of China.Therefore,deciphering its genetic mechanism is crucial for advancing genetic improvement in peanut maturity.This study utilized two parental varieties along with a constructed recombinant inbred line(RIL)population consisting of 167 F5 lines derived from their hybridization as research materials.Phenotypic values of maturity traits,including days from sowing to first flowering(DSF),days from sowing to maturity(DSM),and days from first flowering to maturity(DFM),were investigated and recorded.Descrip-tive statistics,correlation analysis,and a major gene+polygene mixed genetic model were employed to analyze the phenotypic variation,correlations,and inheritance patterns.Correlation analysis re-vealed a highly significant negative correlation between DSF and DFM(r=-0.688),indicating that later-flowering plants experienced shorter pod-filling and maturation phases,potentially influenced by flowering timing and environmental factors.The optimal genetic models identified through major gene+polygene analysis reflected that 4MG-AI(four major genes with additive-epistatic effects)model was suitable for DSF,with a major gene heritability of 73.05%.2MG-AI(two major genes with additive-epistatic effects)model was suitable for DSM,with a major gene heritability of 64.65%.2MG-EA(two major genes with e-qual-additive effects)model was suitable for DFM,with a major gene heritability of 64.97%.The above three maturity traits are influenced by environmental factors to varying degrees.This study preliminarily elucidates the relationships and genetic patterns of maturity traits,provides a critical theoretical foundation for future ge-netic improvement and analysis of peanut maturity.关键词
花生/熟性/主基因/遗传模型Key words
peanut/maturity/major gene/genetic model分类
农业科技引用本文复制引用
吴炫漫,吕建伟,成良强,胡廷会,饶庆琳,姜敏,王金花,王军,彭忠华..花生熟性性状的主基因+多基因遗传模型分析[J].花生学报,2025,54(4):368-373,6.基金项目
贵州省科技计划基础研究(科学技术基金)(黔科合基础-ZK[2022]一般290) （科学技术基金）
贵州省农科院青年基金(黔农科青年基金[2023]12号和[2022]22号) （黔农科青年基金[2023]12号和[2022]22号）
国家重点研发计划项目(2022YFD1601711,2022YFD1100303) （2022YFD1601711,2022YFD1100303）
财政部和农业农村部国家现代农业产业技术体系(CARS-13) （CARS-13）
黔农科种质资源[2023]16号 （）
