G2 — Sorghum bicolor

Summary

SORBI_3001G495500, also known as SbG2, encodes a 3-ketoacyl-CoA synthase, a member of the FAE1-type polyketide synthase family with acetoacetyl-CoA reductase, trans-2-enoyl-CoA reductase, and 3-hydroxyacyl-CoA dehydratase activities. This sorghum gene on chromosome 1 is associated with very-long-chain fatty acid anabolism, wax biosynthesis, cutin-based cuticle development, suberin biosynthesis, and sphingolipid metabolism. It has been linked to traits including drought tolerance, salt tolerance, high temperature stress response, oxidative stress response, abscisic acid sensitivity, flowering time, plant male sterility, root morphology, leaf vein morphology, and disease tolerance. Localization evidence connects the product to the fatty acid elongase complex, endoplasmic reticulum membrane, cell wall, and chloroplast membranes. Studies of related genes in other species link the family to cuticular wax deposition, pollen fertility, and root suberin biosynthesis.