ASD — Oryza sativa Indica Group

Summary

BGIOSGA018540 (ASD) on Indica rice chromosome 5 encodes a short-chain dehydrogenase/reductase (SDR) family protein with NAD(P)-binding domain, annotated with multiple oxidoreductase activities including 2,4-dienoyl-CoA reductase (NADPH), momilactone-A synthase, (+)-borneol dehydrogenase, and xanthoxin dehydrogenase (NAD+) activities. The gene is associated with abscisic acid (ABA) biosynthesis and sensitivity, salt and drought stress tolerance, seed maturation, dormancy, and germination. It is linked to grain yield, plant height, submergence tolerance, ethylene sensitivity, stomatal closure, herbivore resistance, and defence against bacteria. The protein localises to the cytosol, nucleus, mitochondria, and stress granules. Studies of related genes in other species connect the family to ABA deficiency, wilting, reduced seed dormancy, sugar insensitivity, and increased salt and osmotic sensitivity.