Fig. 2.

Phylogenetic tree analysis of PYL protein family members of alfalfa, Arabidopsis, rice, and tobacco. Note: Arabidopsis thaliana At (Arabidopsis thaliana L.), rice Os (Oryza sativa L.), tobacco Nt (Nicotiana tabacum L.), alfalfa Ms (Medicago sativa L.); three color areas represent three clades; blue stars mark common purple flowers Alfalfa PYL protein family members; green stars mark rice PYL protein family members; purple triangles mark Arabidopsis PYL protein family members; black triangles mark tobacco PYL protein family members