SIS7 — Glycine max

Summary

GmSIS7 (GLYMA_08G176300V4) on soybean chromosome 8 encodes a carotenoid dioxygenase with 9-cis-epoxycarotenoid dioxygenase activity and metal binding, placing it in the carotenoid oxygenase family. The gene is associated with abscisic acid (ABA) biosynthesis and content, stomatal movement and closure, seed dormancy and germination, and responses to salt, drought, osmotic, and cold stress. It is also linked to photosynthetic rate, chlorophyll content, ethylene sensitivity, phosphorus uptake, fruit ripening, anther development, and the ascorbate-glutathione cycle. The product localizes to the chloroplast thylakoid membrane and stroma. Studies of related genes in other species connect the family to drought tolerance, ABA accumulation under stress, transpiration rate, lateral root development, seed development, and dormancy.