Fig. 3From: Genome-wide characterization of the GRF family and their roles in response to salt stress in GossypiumPhylogenetic tree and gene structure of GRF protein genes in G. hirsutum. Six phylogenetic clades were clustered. Exons and introns are represented by black boxes and lines, respectively. a-f represent six phylogenetic clades with different intron/exon structureBack to article page