Fig. 1

Phylogenetic analysis and subfamily classification of theexpansingenes in cotton (GhEXPs). The phylogenetic tree was constructed with MEGA 6.0 software using the neighbour-joining (NJ) method with 1000 bootstrap replicates. The pink solid circles represent the cottonexpansingenes fromGossypium hirsutum; the blue solid triangles represent theexpansingenes fromArabidopsis thaliana. Gh,陆地棉;At,Arabidopsis thaliana