陆地棉黄萎病抗性的遗传分析

Analysis on the Inheritance of Resistance to Verticillium Wilt in Upland Cotton

本研究采用 MINQUE( 1)的统计方法 ,用 ADM模型、ADAA模型、AD模型 [1] ,估算陆地棉8个杂交亲本和 F1、F2 代各 2 8个组合的黄萎病抗性遗传效应。结果表明 ,陆地棉黄萎病抗性的遗传不存在母体效应和上位性效应 ,因而采用 AD模型分析 ,加性效应占 52 .4 3,显性效应为 9.0 1,均达极显著水平 ;广义遗传率为 83.0 4 % ,狭义遗传率为 70 .87%

Resistance to Verticillium wilt of 8 parents and their F1s、 F2s in upland cotton were analyzed by the genetic models of ADM, ADAA and AD and MINQUE(1) approaches. The results indicated that, no maternal effect and epistatic effect existed for this trait, but the additive and dominant variances were 52.43 and 9.01, repectively. Thus the broad sense and narrow sense heritabilities were 83.04% and 70.87%, repectively.