Phylogenetic tree of CDPKs from maize, rice and Arabidopsis. Neighbor-joining tree was created using MEGA5.0 program with 1,000 bootstrap using full length sequences of 40 maize, 29 rice, and 34 Arabidopsis CDPK proteins. Four groups were labeled as I, II, III, and IV. Red boxes, maize-rice orthologs; blue boxes, duplicated genes.
Kong et al. BMC Genomics 2013 14:433 doi:10.1186/1471-2164-14-433