Figure 2.

Phylogenetic relationship among the ZmARF proteins and exon-intron organization of the ZmARF genes. A: Phylogenetic relationship among the maize ARF proteins. The unrooted tree was generated using MRBAYES 3.1.2 program by Bayesian method and the bootstrap test was carried out with 20,000 iterations; Numbers on the nodes indicate clade credibility values; Gene classes were indicated with different colors. B: Exon-intron organization of corresponding ZmARF gene. The exons and introns are represented by boxes and lines, respectively.