Figure 3.

Phylogenetic trees of key ABA signaling proteins in species of plants and algae. A to E, The regulatory component of ABA receptor 11 (RCAR11; A), ABA insensitive1 (ABI1; B), open stomatal 1 (OST1; C), slow anion channel1 (SLAC1; D), and vacuolar H⁺-pyrophosphatase1 (AVP1; E) were estimated. The maximum-likelihood method was used to construct the trees and evolutionary distances were computed in the software MEGA 6. Bootstrap values are shown next to each branch of the trees. Clades are indicated by different colors: angiosperm (blue), gymnosperm (pink), fern (red), lycophyte (green), moss (brown), liverwort (purple), and algae (orange). Af, Azolla filiculoides; Amt, Amborella trichopoda; At, Arabidopsis thaliana; Bd, Brachypodium distachyon; Br, Brassica rapa; Cm, Cyanidioschyzon merolae; Cr, Chlamydomonas reinhardtii; Eg, Eucalyptus grandis; Es, Ectocarpus siliculosus; Gm, Glycine max; Gr, Gossypium raimondii; Hv, Hordeum vulgare; Kf, Klebsormidium flaccidum; Md, Malus domestica; Mp, Marchantia polymorpha; Mt, Medicago truncatula; Os, Oryza sativa; Oss, Ostreococcus sp.; Pa, Picea abies; Ph, Phyllostachys heterocycla; Pl, Pinus lambertiana; Pot, Populus trichocarpa; Pp, Physcomitrella patens; Pt, Pinus taeda; Py, Porphyra yezoenessi; Sb, Sorghum bicolor; Sc, Salvinia cucullata; Sf, Sphagnum fallax; Sl, Solanum lycopersicum; Sm, Selaginella moellendorffii; Sp, Spirodela polyrhiza; Ta, Triticum aestivum; Th, Theobroma cacao; Vc, Volvox carteri; Vv, Vitis vinifera; Zm, Zea mays.