MYB2 — Medicago truncatula

Summary

MTR_1G085040, designated MtMYB50 (also known as MYB2, MYB61, or MYB86) on barrel medic chromosome 1, encodes a transcription factor with DNA-binding, chromatin-binding, and transcription coactivator activity. It is associated with pigmentation, seed coat development, xylem development, regulation of lignin anabolism, gibberellic acid homeostasis, seed dormancy, cold acclimation, and the shikimate pathway. The gene is linked to numerous agronomic traits including seed set, shoot elongation, whole plant size, male sterility, pollen fertility, anthocyanin content, chlorophyll content, flowering time, and drought tolerance. It has been connected to seed mucilage production, root meristem development, leaf senescence, and responses to gibberellic acid, cytokinin, and salinity. Studies of related genes in other species link the family to stomatal regulation, root development, lignification, xylem formation, and gibberellin biosynthesis.