LDA — Oryza sativa Indica Group

Summary

BGIOSGA015875 (LDA, OiLDA) encodes a pullulanase/limit dextrinase, a glycoside hydrolase family 13 enzyme with pullulanase, limit dextrinase and isoamylase activities. This gene is associated with amyloplast organization, seed development, and the regulation of starch metabolism, including both starch anabolism and breakdown, as well as amylopectin anabolism and polysaccharide breakdown. The encoded protein localizes to the amyloplast, chloroplast stroma, and the isoamylase complex. LDA is linked to amylose content and to phenotypes including altered carbohydrate chain length distribution, starch granule number, and starch degradation rate. Studies of related genes in other species connect the family to grain weight, grain yield, seed size, starch concentration and digestibility, root branching, and wheat stripe rust disease response.