A Two-Stage Method for Improving the Prediction Accuracy of Complex Traits by Incorporating Genotype by Environment Interactions in Brassica napus

Table 1

The total number of QTL detected by LASSO and the frequency of significant and nonsignificant QTL by OLS post-LASSO (significance level 0.05).

Trait	Effect	Total	Significant	Nonsignificant
FT	Main	46	18	28
	Environment-specific	231	36	195
OC	Main	77	25	52
	Environment-specific	237	38	199
SY	Main	26	11	15
	Environment-specific	146	10	136

FT, flowering time; OC, oil content; SY, seed yield per plant; QTL: quantitative trait loci; LASSO, least absolute shrinkage and selection operator; OLS, ordinary least squares.