Figure 2.

Identification and characteristics of putative, novel SSP genes. A Focal List of putative, novel SSP genes was created based on shared characteristics of previously defined SSPs. This list represents an excellent starting point from which to identify novel SSP genes or families, some of which may be legume or IRLC specific. A, Six sequential filtering steps were used to develop our Focal List. B, A total of 1,371 Focal List members had orthologs identified from at least one of 16 other angiosperm species. These species are classified into five different phylogenetic groups. Indicated in the Venn diagram are the number of Focal List members that have orthologs in each of these groups. C, Focal List genes also were assigned to one of four predicted classifications, including a PTM group that is built on a PTM score calculation.