RR1 — Cucumis melo

Summary

MELO3C006693.2, also known as CmRR1 or RR1 on melon chromosome 7, encodes a protein containing a Response_reg_B-typ_pln, ARR-like, CheY-like_sf, Myb_dom_plants, Myb_dom, SANT/Myb, and Homeobox-like_sf domains, with annotated osmosensor, cytokinin receptor, histidine phosphotransfer kinase, phosphorelay response regulator, histidine kinase, transcription coactivator, sequence-specific DNA binding, and DNA binding transcription factor activities. The gene is associated with the cellular response to cytokinin stimulus, negative regulation of cytokinin-mediated signalling, regulation of chlorophyll catabolic and biosynthetic processes, regulation of anthocyanin metabolism, regulation of meristem development, regulation of shoot development, axillary shoot meristem initiation, regulation of seed size, and upregulation of cell division. It has been linked to traits including fruit size, floral organ size, seed yield, pollen fertility, plant male sterility, shoot growth angle, stem elongation, lateral root length, trichome morphology, chloroplast development, and responses to low temperature, UV light, ethylene, and gibberellic acid. Related genes in other species connect the family to leaf senescence, plant size, male fertility, chlorophyll degradation, xylem expansion, and gibberellin sensitivity.