【摘要】 用方差—协方差分析估计某一样本两个性状的遗传相关时,经常会遇到相关系数大于“1”的情况,从而造成遗传相关阵是非正定的.研究查明,这是由于基因型与环境的互作过大所造成的偏倚.作者将G×E剖分为遗传的和环境的两个部分,修改了常规的统计模型,可以避免遗传相关系数大于“1”的情况.更多还原

【Abstract】 The genotype by environment interaction may be biasing the genetic correlation coefficient estimates. If the interaction is big, a way described in the paper can be used to part the interaction variation ( G×E ) into different sources of linear ( VGIX , VGIY, COVGI ) and remender ( VEIX, VEIY, COVED .(COVG+ COVGI )[(VGX+ VGIX)?( VGY+ VGIY)]1/2 Thus, we can avoid the issue of r’gs exceeding 1.0.更多还原