RAX3 — Cucumis sativus

Summary

CsRAX3 (CSA_1G420880) on cucumber chromosome 1 encodes a protein with a MYB domain and SANT/Myb domain, and is annotated with DNA binding, chromatin binding, transcription coactivator activity, and other molecular functions, localised to the nucleus and Casparian strip. It is associated with regulation of root morphogenesis and development, endoderm cell differentiation, Casparian strip formation, and root suberization. The gene is linked to gibberellic acid homeostasis and signaling, seed dormancy, salicylic acid-mediated signaling, green leaf volatile biosynthesis, and responses to heat and salinity. Traits connected to CsRAX3 include shoot and stem elongation, plant size, flowering time, seed set, pollen fertility, anthocyanin and chlorophyll content, leaf senescence, trichome morphology, and root thickness. Studies of related genes in other species link the family to heat, salt, drought, and boric acid tolerance, lateral root development, seed yield, and male fertility.