Fig. 2

Cowpea AP2-EREBP genes according to the DREB A1-A6 and ERF B1-B6 grouping. This grouping follows the classification schemes of Dietz et al. (2010) [69] and Sharoni et al. (2011) [70]. The trees were generated using RAxML [62] with 100 bootstrap values with the optimal amino acid substitution model automatically chosen in RAxML (i.e., the PROTGAMMAAUTO option). The circles on the branches are bootstrap support values from 50 to 100, with the largest circles representing the greatest bootstrap support