GCS1 — Glycine max

Summary

GmGCS1 (GLYMA_09G081420V4) on soybean chromosome 9 encodes a HAP2/GCS1 domain-containing protein with lipid-binding molecular function. The gene is associated with double fertilization, specifically fusion of sperm to egg plasma membrane, as well as pollen sperm cell differentiation, protein-membrane insertion, seed development, nodulation, nitrogen fixation, and fatty acid metabolism including lipogenesis and anabolism. It is linked to responses to salt and activation of salinity response, along with homeostasis. The encoded protein localizes to the cell projection membrane, cytoplasmic vesicle membrane, ER membrane, plasmalemma, and extracellular regions. Associations with agronomic traits include seed width, seed length, seed weight, seed size, stearic and palmitic acid content, net photosynthetic rate, and GRWT. Related genes in other species are linked to gamete fusion and male gametophyte transmission defects.