RD26 — Arabidopsis thaliana

Summary

AT4G27410 (RD26, ANAC072) encodes a NAC domain-containing transcription factor that localises to the nucleus and cytoplasm and exhibits sequence-specific DNA binding and transcription factor activity. In Arabidopsis, RD26 is associated with stress responses, including drought, salt, desiccation, and combined stress tolerance, as well as abscisic acid sensitivity, leaf senescence, chlorophyll degradation, seed development, and pathogen resistance. The gene is linked to chlorophyll a and mRNA breakdown, abscisic acid and carbohydrate anabolism, nitrate assimilation, and the shikimate pathway. Associations with shoot and seed growth, leaf shape, stomatal opening, disease tolerance, and potassium acquisition have also been recorded. Studies of related NAC family members in other species connect the family to heat tolerance, age-related resistance, and traits such as starch yield, carotenoid content, fruit size, and root morphology.