Fig. 1

Phylogeny and distribution of HD-Zip proteins from eight plant species. a Phylogenetic tree of HD-Zip proteins from Arabidopsis, Populus, Vitis, wheat, rice, maize, Brachypodium, and moss. Phylogeny was constructed by PhyML using maximum likelihood analysis. Bootstrap support values as percentage, are shown on selected major branches. The bar indicates substitutions per site; b Percentage representation of HD-Zips across the eight plant species within each subfamily; c Percentage representation of distributions for HD-Zips within each plant species