中国玉米骨干亲本黄早四杂种优势形成的遗传基础解析

李永祥,李春辉,杨俊品,杨华,程伟东,汪黎明,李凤艳,李会勇,王延波,李淑华,扈光辉,刘成,黎裕,王天宇

Genetic Dissection of Heterosis for Huangzaosi, a Foundation Parental Inbred Line of Maize in China

LI YongXiang,LI ChunHui,YANG JunPin,YANG Hua,CHENG WeiDong,WANG LiMing,LI FengYan,LI HuiYong,WANG YanBo,LI ShuHua,HU GuangHui,LIU Cheng,LI Yu,WANG TianYu

表2 中国NAM及其测交群体产量及重要农艺性状QTL定位分析

Table 2 QTL analysis of yield and important agronomic traits for NAM and its test-cross populations

性状 Trait NAM重组自交系 NAM-RILs 昌7-2 组合 CH7-TCs 郑58组合 Z58-TCs 数量Count PVE (%) 数量Count PVE (%) 数量Count PVE (%) 吐丝期DTS 17 55.23 11 64.80 6 68.11 株高PH 22 68.52 10 62.89 9 71.34 穗行数KRN 19 67.47 13 63.42 20 79.07 行粒数KNPR 13 45.18 10 52.47 9 62.45 百粒重KWPH 16 50.90 12 62.49 9 58.37 单穗产量Ear yield 11 39.27 11 62.51 9 60.12 小区（单株）产量Plot (Per plant) yield 14 42.17 8 56.06 10 57.29 单株产量Per plant yield 小区产量Plot yield 小区产量Plot yield