玉米骨干自交系京2416杂种优势及遗传重组解析

赵久然,李春辉,宋伟,刘新香,王元东,张如养,王继东,孙轩,王夏青

Heterosis and Genetic Recombination Dissection of Maize Key Inbred Line Jing2416

ZHAO JiuRan,LI ChunHui,SONG Wei,LIU XinXiang,WANG YuanDong,ZHANG RuYang,WANG JiDong,SUN Xuan,WANG XiaQing

表2 4个黄改系和5个X系之间的杂交组合单穗粒重的杂种优势

Table 2 Heterosis of F1 kernel weight per ear of combinations between 4 HILs and 5 X lines (%)

杂种优势 Heterosis 亲本 Parents DH382 京MC01 JingMC01 京464 Jing464 京724 Jing724 京725 Jing725 中亲优势 Mid-parent heterosis 京2416 Jing2416 99.35 89.27 103.30 87.31 90.78 京24 Jing24 94.06 89.51 80.88 76.55 84.20 5237 70.95 60.91 72.39 82.32 58.03 黄早四 Huangzaosi 113.93 100.77 106.84 82.11 70.86 超高亲优势 Over-high parent heterosis 京2416 Jing2416 84.48 83.87 82.46 67.25 62.60 京24 Jing24 80.02 84.57 62.71 58.00 57.33 5237 63.37 60.11 59.59 67.90 38.65 黄早四 Huangzaosi 70.79 66.77 61.08 41.24 27.65