PYL1 — Oryza sativa Indica Group

Summary

BGIOSGA006847 (PYL1, also known as ABAR10) on chromosome 2 of Indica rice encodes a protein with abscisic acid binding, protein phosphatase inhibitor, and kinase regulator activities, belonging to the polyketide cyclase/dehydrase and START-like domain superfamilies. This gene is associated with regulation of ABA-mediated signaling, stomatal movement, seed dormancy release, and germination. It has been linked to root length, seedling growth, and plant development in rice. Associations also include osmotic stress sensitivity, spikelet fertility, vegetative vigor, and responses to biotic and abiotic stresses. The encoded protein localizes to the cytosol, tonoplast, plastid, mitochondria, and Golgi. Studies of related genes in other species link the family to ABA-regulated gene expression, heat tolerance, and transpiration.