HAP4 — Oryza sativa Indica Group

Summary

BGIOSGA024290 (symbol HAP4, also known as OiHAP4) on Indica rice chromosome 7 encodes a protein with a ubiquitin domain and a ribosomal eL40 domain, and is annotated with histone methylase activity, thiol-dependent deubiquitinase activity, and structural constituent of the ribosome. The gene is associated with seed morphogenesis, seed dormancy, endosperm development, fruit development, and regulation of abscisic acid anabolism. It has been linked to grain weight, grain yield, grain shape, seed growth and development, and seedling growth traits. Associations also include responses to salinity, freezing, high and low temperature stress, disease tolerance, leaf senescence, flowering time, root morphology, and root mass density. The gene is connected to stomatal lineage progression, trichome branching, and shoot development. Studies of related genes in other species link the family to seed size, salt tolerance, drought tolerance, and cell proliferation.