利用SNP芯片对部分黄淮海玉米自交系遗传多样性分析  

Genetic Diversity Analysis for Part of Inbred lines in Maize in Huang-Huai-Hai Plain by SNP Chip

作　　者：魏锋[1] 卫晓轶[1] 史大坤 马俊峰[1] 马毅[1] 洪德峰[1] 王稼苜 郑秋道[1] 刘经纬[1] 李方杰 张雪海[2] WEI Feng;WEI Xiao-yi;SHI Da-kun;MA Jun-feng;MA Yi;HONG De-feng;WAGN Jia-mu;ZHENG Qiu-dao;LIU Jing-wei;LI Fang-jie;ZHANG Xue-hai(Xinxiang Academy of Agricultural Sciences,Xinxiang 453002;Henan Agricultural University,Zhengzhou 450046,China)

机构地区：[1]新乡市农业科学院,河南新乡453002 [2]河南农业大学,郑州450046

出　　处：《玉米科学》2024年第1期55-64,共10页Journal of Maize Sciences

基　　金：河南省科技攻关项目“抗逆玉米种质创制及机械化子粒收获玉米新品种选育”(212102110277);国家现代农业产业技术体系项目(CARS-02-68)。

摘　　要：利用4434个SNP标记对47份玉米自交系进行种质遗传多样性和杂种优势类群研究。采用Admix⁃ture软件对自交系的遗传结构进行分析,采用Treebest软件对自交系进行聚类分析和类群划分。结果表明,47份自交系分为6个类群,分别为瑞德群、兰卡斯特群、塘四平头群、PB群、旅大红骨群和自330亚群。10个自选系组配的杂交种主要利用的杂种优势模式为PB×塘四平头和瑞德×塘四平头,均为近年来黄淮海地区主要利用的杂种优势模式。Forty-seven inbred lines in maize were used as materials,the genetic diversity and heterosis group were analyzed using 4434 SNP markers.The genetic structure of inbred lines was analyzed by Admixture software,and cluster analysis and group division were carried out by Treebest software.The results showed that 47 inbred lines were divided into six groups,including Reid,Lancaster,SPT,PB,LRC and Zi330 subgroup.Among them,the main heterosis patterns of hybrid crossed by 10 inbred lines were PB×SPT and Reid×SPT,these heterosis patterns were mainly used in Huang-Huai-Hai region in recent years.

关 键 词：玉米 SNP标记 自交系 杂种优势类群 杂种优势模式 

分 类 号：S513.037[农业科学—作物学]