CPR5 — Cucumis melo

Summary

MELO3C007802.2, designated CmCPR5 (also known as CmOLD1 and CmHYS1) on melon chromosome 9, encodes a protein containing a CPR5_C domain with kinase inhibitor activity, specifically cyclin-dependent protein kinase inhibitor activity, and mRNA binding. The gene is associated with flower sex determination and sex differentiation, and with the negative regulation of leaf senescence, cell cycle, and mitosis. It is associated with systemic acquired resistance, jasmonic acid and ethylene signaling, and responses to other organisms. Associations include leaf and trichome morphology traits, disease tolerance, drought tolerance, root and seedling growth, seed germination, and cell cycle and endoreplication traits. The protein localises to the nucleus, nuclear envelope, nuclear speck, and endoplasmic reticulum. Studies of related genes in other species link the family to ethylene sensitivity, viral and powdery mildew resistance, and heat stress tolerance.