Fig. 2

A Trade-off between the average additive relationship between the training and test sets (vertical axis) and the opposite value of the average additive relationship within the training set, i.e. training set diversity (horizontal axis). The values in both axes have been normalized between 0 and 1. Each point corresponds to one of the eleven combinations between training and test set years tested in this work. The point shape refers to the number of consecutive years preceding the test set that we used to build the training population, with labels indicating the oldest year contained in the training set. Within the training sets, all available data for the corresponding years has been considered (no optimization). B Broad sense heritability for each trait within each year. The horizontal dashed lines correspond to the heritability calculated across all years