Chromosome mapping of poplar, Arabidopsis and grapevine homologues of the 39B3 Citrus deleted genes. The first TBLASTX hit for each Citrus deleted gene with an E value cut-off < 10-5 is represented on linkage groups (LG) from Populus trichocarpa, Arabidopsis thaliana and Vitis vinifera. Homologues of Citrus genes were grouped into clusters in each species when the distance between them was shorter than 250 kb. Second and third hits are only represented when they are located in a previously identified cluster, and in this case are linked to the first hit by a line. The value on each cluster indicates the hit number of the cluster.