基于SNP标记的玉米自交系S155、PHA458和A01的遗传多样性分析  

Genetic Diversity of Maize Inbred Lines S155,PHA458 and A01 Based on SNP Markers

作　　者：孙佩[1] 张培风 张玉红[1] 周联东[1] 王蕊[1] 王文洁[1] 张瑞平 李祥 马朝阳[1] 李合顺[1] 王学军[1] SUN Pei;ZHANG Peifeng;ZHANG Yuhong;ZHOU Liandong;WANG Rui;WANG Wenjie;ZHANG Ruiping;LI Xiang;MA Chaoyang;LI Heshun;WANG Xuejun(Xinxiang Academy of Agricultural Sciences,Xinxiang,Henan 453002,China)

机构地区：[1]新乡市农业科学院,河南新乡453002

出　　处：《陕西农业科学》2023年第9期1-7,共7页Shaanxi Journal of Agricultural Sciences

基　　金：河南省重大科技专项“机收玉米新品种选育及配套生产技术研究”(212300111100);河南省农业良种联合攻关项目“高产抗病抗逆宜机收玉米种质创新及新品种选育”(2022010201)。

摘　　要：为了分析玉米品种新科891的遗传结构和遗传多样性,本研究利用Affymetrix Axiom 10K SNP芯片对玉米品种新科891的双亲自交系(母本S155、父本PHA458)及自交系A01进行全基因组扫描,获得多态性标记4926个。结果表明,群体聚类分析和群体遗传结构分析的杂种优势类群划分结果基本一致。母本S155为SS类种质,父本PHA458含有NSS和塘四平头类血缘,自交系A01为塘四平头类血缘,新科891的杂种优势模式为SS×NSS,这为新科891双亲的后续改良与创新奠定基础,并为杂交组配的育种工作提供依据。In order to analyze the genetic structure and diversity of Xinke 891 maize,in this study,affymetrix Axiom 10K SNP chip was used to scan the whole genome of its two-parent inbred lines(female S155,male PHA458)and inbred line A01,and 4926 polymorphic markers were obtained.The results showed that cluster analysis and genetic structure analysis for classification were basically consistent.The blood relationship between S155 and PHA458 was complicated,S155 belonged to SS germplasm,PHA458 contained NSS and TSPT,and A01 belonged to TSPT.The heterosis mode of Xinke 891 was SS×NSS.This study lays the foundation for the follow-up improvement and innovation of Xinke 891 parents,and provides a basis for breeding of crossbreeding.

关 键 词：玉米 新科891 SNP标记 类群划分 杂种优势模式 

分 类 号：S513[农业科学—作物学]