基于高密度SNP标记对玉米株型相关性状的QTL定位  

QTL Localization of Maize Plant Size-related Traits Based onHigh-density SNP Markers

作　　者：刘鹏飞 郭向阳[1] 王安贵[1] 聂蕾 涂亮 吴迅 祝云芳[1] 蒋喻林 陈泽辉[1] LIU Pengfei;GUO Xiangyang;WANG Angui;NIE Lei;TU Liang;WU Xun;ZHU Yunfang;JIANG Yulin;CHEN Zehui(Dry Grain Research Institute,Guizhou Academy of Agricultural Sciences,Guiyang 550006,China;Key Laboratory of Crop Genetic Resources and Germplasm Innovation,Ministry of Agriculture and Rural Affairs,Guiyang 550006,China)

机构地区：[1]贵州省农业科学院旱粮研究所,贵阳550006 [2]农业农村部喀斯特山区作物基因资源与种质创新重点实验室,贵阳550006

出　　处：《种子》2025年第3期10-16,共7页Seed

基　　金：国家自然科学基金项目(32060460、32160451);贵州省科技成果重点推广项目(黔科合成果[2024]重大009、黔农科一般基金[2024]19号);贵州省山地农业关键核心技术攻关项目(GZNYGJHX-2023012);贵州省自然科学基金项目(黔科合基础[2022]一般236);贵州喀斯特山区重要作物生物育种平台建设(黔科合中引地[2023]033);贵州省育种科研基础平台创新能力建设(黔科合服企[2022]014)。

摘　　要：利用玉米温热改良系QB7866和QB5725构建131份F_(2∶3)家系,对其株高、穗位高、全株叶片数、穗上叶片数、雄穗主轴长和雄穗分枝数进行调查,并结合基因数据进行QTL分析。结果表明,共定位到78个与株型性状相关的QTL,其中,株高13个、穗位高6个、全株叶片数15个、穗上叶片数14个、雄穗主轴长16个、雄穗分枝数14个。Using maize(Zea mays L.)thermo-sensitive improved lines QB7866 and QB5725,131 F_(2∶3)families were constructed.Investigations on plant height,ear height,total number of leaves per plant,number of leaves above the ear,length of tassel main axis,and number of tassel branches were conducted.Combined with genetic data,QTL analysis revealed 78 QTLs associated with plant architecture traits,including 13 for plant height,6 for ear height,15 for total leaves per plant,14 for leaves above the ear,16 for tassel main axis length,and 14 for tassel branch number.

关 键 词：玉米 SNP标记 QTL 

分 类 号：S513[农业科学—作物学]