Figure 1.

Phylogenetic relationships of Arabidopsis and D. officinale ARF proteins. An unrooted phylogenetic tree was constructed using MEGA 5.1 (The Biodesign Institute, Tempe, AZ, USA) by N–J method. Bootstrap values are presented for all branches. All ARF family genes were grouped into six subgroups named from I to VI. Different subfamilies were showed by different colorized shading.