AIG1 — Cucumis melo

Summary

MELO3C023724.2 (AIG1, also known as CmAIG1, CmRCAR1-4, CmPYL7, CmPYL8, and CmPYL10) on melon chromosome 2 encodes a protein with abscisic acid binding, protein phosphatase inhibitor, and protein kinase activator activities, containing polyketide cyclase/dehydrase and START-like domains. It is associated with regulation of abscisic acid, auxin, salicylic acid, jasmonic acid, and gibberellic acid signaling pathways, as well as stomatal opening, seed dormancy release, and germination. The gene has been linked to drought resistance, salt stress response, water use efficiency, transpiration rate, vegetative vigor, seed yield, sugar content, anthocyanin content, and responses to aphids, powdery mildew, and other pathogens. It localizes to the nucleus, cytosol, plasma membrane, Golgi, and mitochondria. Studies of related genes in other species connect the family to fruit ripening, cold tolerance, leaf senescence, and nematode resistance.