GAPA — Cicer arietinum

Summary

LOC101493610 (CaGAPA) on chickpea chromosome 3 encodes a glyceraldehyde-3-phosphate dehydrogenase with NADP+ and NAD+ phosphorylating activities, also annotated for histone acetyltransferase activity, salicylic acid binding, and nickel/copper binding. The protein localises to the chloroplast thylakoid membrane, stroma, envelope, stromule, apoplast, and plasmodesma. CaGAPA is associated with the reductive pentose-phosphate cycle, starch and carotenoid metabolism, cellular responses to cold and anoxia, and negative regulation of the reductive pentose-phosphate cycle. It has been connected to grain size, seed weight, starch content, chlorophyll content, photosynthetic ability, drought tolerance, salt response, oxidative stress response, abscisic acid sensitivity, root length, and relative growth rate. Related genes in other species link the GAPA family to photoautotrophic growth, photosynthetic capacity, seed yield, seed lipid content, basal immunity, and thermo-resilience.