玉米种质资源株高和穗位的全基因组关联分析

打开文本图片集

中图分类号：Q789；S513 文献标识码：A 文章编号：1006-060X（2025）08-0001-06

AGenome-Wide Association Study of Plant Height and Ear Height in Maize Germplasm Resou

LI Le¹，LI Shi-feng²，LUO Zhi-chun²，YINLi-xin¹，LI Wei-guo1，TANG Shun-xue1， YAN Zhi-bin²，TIAN Bing-chuan'

（1. Higentec Co.，Ltd.， Changsha 410128，PRC; 2. Gansu Dunhuang Seed Group Co.，Ltd.， Jiuquan 73500，PRC）

Abstract：This studyaimstoscreenoutthemaizegermplasmresources withsuitable plantheightandearheightforachieving high yields.The phenotypicdataand genotypicdataof215maizegermplasmresources werecolected，andagenome-widesociation study（GWAS）wasconductedfor theelite germplasmresources intermsofgenotype，diseaseresistance，and yield.Thecluster analysislasifde5esoustibos：，asteipigto andthematerialsarehighlyrepresentative.TheGWASof134elitemaizegermplasmresoucesidentifiedsevenQTLsrelatedtoplant heightandearheight.Amongthem，twoQTLsoverlapped withexistingcloned genes，andfiveQTLswerenewlyidentifed.OneQTL interval forbothplantheightandearheightwaslocatedonchromosome7.TheseQTLsprovideabasisforthefinemappingofplant height and ear height genes.

Key words： maize; germplasm resources; plant height; ear height; gene mapping

玉米是全球重要的粮食作物之一，它不仅是口粮，也是动物饲料和乙醇等工业产品的原材料[1-2]。（剩余11478字）