rsca — Triticum aestivum

Summary

TRAESCS3A02G260200 (symbol rsca) on bread wheat chromosome 3A encodes a chitinase with beta-N-acetylglucosaminidase and chitinase activities (EC 3.2.1.14), belonging to the glycoside hydrolase family 19 and containing a chitin-binding domain. The gene is associated with chitin breakdown, cell wall macromolecule catabolic processes, amino sugar metabolism, and polysaccharide breakdown. It is linked to downregulation and regulation of photosynthesis, response to activity, sporulation, pre-harvest sprouting, polyamine anabolism, secondary metabolite biosynthesis, sulfur and glutathione metabolism, metabolic burst, digestion, killing of cells of other organisms, fatty acid metabolism, and regeneration. The encoded protein localizes to the vacuole and extracellular space. Associations with agronomic traits include grain yield, grain weight, flour protein content, grain protein content, straw yield, harvest index, grains per spike, plant height, stem elongation, root weight and length, seedling vigor, seed longevity and dormancy, anther length, leaf chlorosis, chlorophyll content, carbohydrate, sucrose, and fructose content, lignin content, heat tolerance, and stem rust and stripe rust. Related genes in other species encode chitinases linked by sequence similarity.