MYB3 — Nicotiana attenuata

Summary

A4A49_33354 (MYB3) in coyote tobacco (Nicotiana attenuata) encodes a protein with a Myb DNA-binding domain and SANT/Myb domain, and has annotated DNA-binding transcription factor activity, protein dimerization activity, and protein phosphatase activity. In this species, MYB3 is associated with herbivore resistance and anti-herbivore defence, specialized metabolite biosynthesis, regulation of flavonoid and anthocyanin biosynthesis, trichome differentiation and spacing, response to herbivore and iron ion starvation, and oviposition. The gene is also linked to traits including leaf trichome density, flavonoid and anthocyanin content, jasmonic acid content, flowering time, disease tolerance, salt and oxidative stress response, and plant growth and development. Studies of related genes in other species connect the family to UV-B tolerance, phenylpropanoid and lignin biosynthesis, and pathogen resistance.