Fig. 1From: Genome-wide identification and functional characterization of cotton (Gossypium hirsutum) MAPKKK gene family in response to drought stressPhylogenetic relationship of GhMAPKKKs with Arabidopsis MAPKKKs. The unrooted phylogenetic tree was constructed using MEGA 6.0 by Neighbor-Joining method and the bootstrap test was performed with 1000 iterations. The three subfamilies are indicated with different colorsBack to article page