Results of training a classifier in one species and predicting in another.

Rows are the organisms which the classifier was trained on, and columns are the organisms which the classifier was tested on. The last two rows show the performance when training on a set of combined sequences from human, mouse and chicken (All warm-blooded), or lizard, frog and zebrafish (All-coldblooded). Each value is the mean AUPRC across 5 separate training sets and test sets (see Methods for details). The tissue in all cases was testes.