Fig. 2

Phylogenetic relationship analysis of DNA 6mA methyltransferase (DAMT) and demethylase (ALKBH) in different species. A A phylogenetic tree to analyze the evolutionary relationship among 24 6mA methyltransferase (DAMT) family members from 7 plant species. B The evolutionary relationship among 78 demethylases (ALKBH) family genes from 7 plant species by constructing the phylogenetic tree. A, B The phylogenetic trees were constructed by using NJ method with 1 000 bootstrap while curves with different colors indicate different groups of genes and prefixes At, Os, Gm, Pt, Vv, Tc, and Gh were used to recognize the corresponding genes from Arabidopsis thaliana, Glycine max, Theobroma cacao, Vitis vinifera, Oryza sativa, Populus trichocarpa, and Gossypium hirsutum, respectively