Figure 4.

Phylogenetic tree and protein sequences of cotton PACLOBUTRAZOL RESISTANCE 1 (PRE1). The phylogenetic relationship of 32 cotton PRE1 protein sequences (from 20 diploid and six allotetraploid species) was inferred by using MEGA and the maximum‐likelihood method based on the Jones–Taylor–Thornton (JTT) model with 1000 bootstrap replications. Percentage bootstrap scores of > 50% were displayed. Notice the putative gene conversion at positions 90 and 91 in the At homoeolog of Gossypium ekmanianum. The letter(s) after the species name denotes the genome or subgenome group, Thespesia populnea PRE1 was used as outgroup.