“…Considering arboreal species, DNA methylation dynamics are reportedly involved into developmental processes such as the regulation of bud dormancy, acclimation, and biomass production (e.g., in Populus × euramericana , Le Gac et al., 2018 ). More specifically, differential DNA methylation is involved into cell wall development, cell division, and cell expansion in several woody species, including Populus trichocarpa ( Zhang et al., 2020 ), Populus deltoides × P. euramericana ( Luo et al., 2021 ), and Populus tomentosa ( Chen et al., 2021 ). Compatibly, the inhibition of DNA methylation by 5-azacytidine resulted into impaired cell wall synthesis, as shown in, e.g., in Phyllostachys edulis ( Liufu et al., 2023 ).…”