GAPA — Brassica oleracea var. botrytis

Summary

BoGAPA, located on chromosome 7 of cauliflower (Brassica oleracea var. botrytis), encodes a glyceraldehyde-3-phosphate dehydrogenase (GAPDH) with NADP+ and NAD+ phosphorylating activities, and is associated with the reductive pentose-phosphate cycle, and responses to light, cold, heat, anoxia, and sucrose. The gene is linked to photosynthetic ability, relative growth rate, starch content, seed yield, root morphology, and oxidative stress response. It is also associated with abscisic acid sensitivity, salt tolerance, and plant growth and development traits. BoGAPA localises to the chloroplast stroma, thylakoid membrane, envelope, stromule, apoplast, plasmodesma, and cytosol. Studies of related genes in other species link the family to chloroplast glyceraldehyde-3-phosphate dehydrogenase activity, photoautotrophic growth, seed lipid content, basal immunity, and thermo-resilience.