HAP1 — Oryza sativa Indica Group

Summary

BGIOSGA037250 (HAP1, also known as OiHAP1) in Indica rice encodes a Mago nashi family protein with translation initiation factor activity, RNA and mRNA binding, protein dimerization activity, and DNA-binding transcription factor activity. The gene is associated with guard cell fate commitment and differentiation, pollen tube guidance, nonsense-mediated mRNA decay, mRNA transport, water transport, response to low humidity and hypoxia, diterpenoid anabolism, the MAPK cascade, and regulation of translation and gene expression. It localizes to the exon junction complex, nuclear speck, nucleolus, plasmodesma, plastid, mitochondria, and cytosol. HAP1 is linked to grain yield, grain weight, grain length and width, seed weight and size, amylose content, root and shoot dry weight, days to flowering, heat, cold and drought tolerance, chlorophyll content, and jasmonic acid content.