only load human and mouse genes if they are homologues
only load human and mouse genes if they are homologues


Former-commit-id: a62cef586f15fbc9c8689beecc683635eaaa656a
julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine