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. 2014 Nov 6;9(11):e112375. doi: 10.1371/journal.pone.0112375

Figure 1. Phylogenetic relationship and intron pattern in CsMYB proteins.

Figure 1

The neighbor-joining (NJ) tree on the left included 177 CsMYB proteins from sweet orange. For 86 R2R3-MYB and 3R-MYB proteins, the tree showed the 18 phylogenetic subgroups (S1–S18) marked with colored backgrounds to facilitate subfamily identification with high predictive value. Six proteins did not fit well into clusters. For 91 1R-MYB and 4R-MYB proteins, the tree shows the 11 phylogenetic subgroups (Sr1–Sr11) marked with colored backgrounds, to facilitate subfamily identification with a high predictive value. Fifteen proteins did not fit well into clusters. The numbers beside the branches represent bootstrap values (50%) based on 1,000 replications. The colorful marker in the tree indicates the corresponding intron distribution patterns. The gene structure was presented by green exon(s), red MYB domain(s), and spaces between the colorful boxes corresponding to introns. The sizes of exons and introns can be estimated using the horizontal lines; the numbers indicate the phases of corresponding introns.