Fig. 1
From: Calcium-dependent protein kinases in cotton: insights into early plant responses to salt stress
Phylogenetic analysis of CPK family members in cotton. The phylogenetic tree depicts 98 predicted cotton CPKs and 34 CPKs from A. thaliana, and the un-rooted tree was generated using MEGA6.0 with the neighbor-joining method (1000 bootstrap replicates). Arabidopsis CPKs are denoted with black rhombuses; the numbers represent bootstrap values. All CPKs were classified into one of four groups (groups I-IV); the distinct groups are shown by differently colored branches and backgrounds