HAP4 — Oryza sativa Indica Group

Summary

BGIOSGA030886 (HAP4, also known as UBQ13, ERD16, and RPL40A) on chromosome 9 of Indica rice encodes a protein containing both a ubiquitin domain and a ribosomal eL40 domain, and is annotated with structural constituent of ribosome, ubiquitin-protein transferase, thiol-dependent deubiquitinase, histone methylase, and core promoter sequence-specific DNA binding activities. The gene is associated with seed morphogenesis, endosperm and fruit development, seed dormancy, stomatal lineage progression, trichome branching, and shoot development. It is linked to regulation of abscisic acid anabolism, salinity response, and response to freezing and thermal stimulus. Associations with grain weight, grain yield, seed size, salt tolerance, drought tolerance, flowering time, leaf senescence, root morphology, and disease tolerance have been reported. Studies of related genes in other species connect the family to cell proliferation, leaf architecture, fertility, and abscisic acid signaling.