摘要： 应用包含基因型×环境互作的ADM遗传模型及非条件和条件的分析方法对海岛棉开花性状的双列杂交2年数据进行发育遗传研究。结果表明,开花性状在多个时期存在显著的加性、显性和母体环境互作方差。条件遗传分析发现,在某些无法检测到非条件遗传方差的时期存在显著水平的条件方差。不同时期的条件相关分析表明,在大部分时期存在显著的加性和母体环境互作相关。但开花性状表现型在各个发育阶段之间的非条件相关系数几乎均为零。时期间的相关程度及相关性质随着发育进程的改变而呈动态变化。各时期最终时刻的相关表现无法完全体现在整个发育过程中的动态变化。

关键词: 开花性状, 非条件和条件方差, 相关系数

Abstract: Analysis of genetic main effects and GE interaction effects for flowering trait of island cotton ( Gossypiumbarbadense L. ) were conducted for 2??yr diallel cross data by using a ADM genet ic mode. Analysis approaches of uncondi??tional and conditional variance and correlation were employed to evaluate developmental behavior of flowering trait. Theresults indicated that significant variances due to addition, dominance, and maternal environment interact ion were detectedfor flowering traits at different stages. Significant conditional variances were found at some stages while no unconditionalones being detected. Correlation analysis between different stages indicated that there existed significant coeff icients due to additive and maternal environment interaction at most stages. While for phenotype, nearly every unconditional coefficientwas zero. Furthermore, Not only the degree of the correlation but also the direction of the correlation was changeable atdifferent stages.The correlat ion results of f inal traits could not fully indicate the dynamic procedure during the whole developmental period.

Key words: Flowering trait, Unconditional and conditional variance, Correlation coefficient

中图分类号: 

• S562