小麦重组自交系主要产量性状的变异分析  

Variation Analysis of Main Yield Traits in Wheat Recombinant Inbred Lines

作　　者：苗任重 杨一帆 陈志愿 王得宝 盛奥莹 邓跟望 MIAO Renzhong;YANG Yifan;CHEN Zhiyuan;WANG Debao;SHENG Aoying;DENG Genwang(Zhumadian Agricultural Academy of Sciences,Zhumadian He'nan 463000,China;He'nan Huaguan Seed Industry Co.,Ltd,Zhoukou He'nan 477200,China)

机构地区：[1]驻马店市农业科学院,河南驻马店463000 [2]河南华冠种业有限公司,河南周口477200

出　　处：《耕作与栽培》2024年第3期1-4,共4页Tillage and Cultivation

基　　金：国家现代农业产业技术体系建设专项资金(CARS-03)。

摘　　要：为了解(驻麦305/中麦578)重组自交系群体在产量性状遗传作图和基因定位上的应用价值,本研究以388份(驻麦305/中麦578)重组自交系群体的品系为材料,利用卡平方测验法对该群体产量相关性状的遗传变异进行了分析。结果表明,(驻麦305/中麦578)重组自交系的分蘖数、穗长、小穗数、穗粒数、千粒重和穗粒重等指标具有较广泛的遗传变异,其变异系数分别为23.54%、11.37%、7.30%、14.16%、20.12%和25.63%。除穗粒重和分蘖数外,其余4个性状均符合正态分布,呈现出数量性状的遗传特征,表明这是一个理想的遗传作图群体。In order to understand the application value of the recombinant inbred line population(Zhumai 305/Zhongmai578)in genetic mapping and gene mapping of yield traits,this study analyzed the genetic variation of yield related traits in 388(Zhumai305/Zhongmai578)recombinant inbred line populations using the chi square test method.The research results indicated that the traits of tiller number,ear length,spikelet number,ear grain number,thousand grain weight,and ear grain weight of the recombinant inbred line(Zhumai305/Zhongmai578)had extensive genetic variation,with coefficients of variation of 23.54%,11.37%,7.30%,14.16%,20.12%,and 25.63%,respectively.Except for spike grain weight and tiller number,the other four traits all follow a normal distribution,exhibiting genetic characteristics of quantitative traits,indicating that this is an ideal genetic mapping population.

关 键 词：小麦 重组自交系 产量性状 遗传变异 

分 类 号：S512.1[农业科学—作物学]