Fig. 1: Chromosomal locations and phylogenetic analysis of ClOMT genes in watermelon.

A The chromosomal location was drawn using MapChart2.32. The tandem duplicated genes are boxed. B The phylogenetic tree of the ClOMT genes was constructed using MEGA 7.0.21, and the ClOMT genes were placed into groups I, II and III. Bar, 0.2 substitutions per site; Chr, chromosome; ClOMT Citrullus lanatus O-methyltransferase