FIGURE 1.
Phylogenetic tree of ZHD proteins from upland cotton, rice, maize, and Arabidopsis. The tree was generated with MEGA 5 software using the neighbor-joining method (A). The chromosomal distribution and percentage of ZHD family genes shared in G. hirsutum, G. arboreum, G. raimondii, and Arabidopsis. The outermost circle represents the chromosomes of G. hirsutum, followed by G. arboreum and G. raimondii, with the innermost circle representing Arabidopsis (B).