Figure sup 1. Tree of the ABCB family. The two full transporters of this family grouped together and clustered with human MDR1, an Entaboeba gene and a rice gene (Os). The half transporters clustered with other human homologs and a fly gene from Drosophila melanogaster (Dm). Three of the genes that carry a serine-protease domain, Tag B,C and D, grouped together and more distantly with another such gene, TagA.