Fig. 5

Phylogenetic tree of NAC proteins from A. hypochondriacus, A. thaliana, and O. sativa constructed using the maximum likelihood method (JTT model, 1,000 bootstraps). The 272 proteins clustered into 24 clades, including known and novel subfamilies. Coloured branches represent subgroups; internal nodes show bootstrap values, reflecting evolutionary relationships and lineage-specific diversification.