HAP4 — Oryza sativa Indica Group

Summary

BGIOSGA025730 (HAP4, also known as UBQ2, ERD16, and RPL40A) on chromosome 7 of Indica rice encodes a protein with ubiquitin and ubiquitin-like domains, and is annotated with histone methylase, deubiquitinase, ubiquitin-binding, and structural constituent of ribosome activities. This gene is associated with seed morphogenesis, dormancy, and development, grain shape and weight, endosperm and fruit development, and grain yield. It is linked to responses to salinity, temperature stress (both high and low), freezing, and drought tolerance, as well as stomatal lineage progression, trichome branching, shoot development, leaf length and senescence, root morphology and mass density, flowering time, pollen fertility, and chloroplast development. Associations also include regulation of abscisic acid anabolism, chromatin modeling, DNA replication and integration, and modification-dependent proteolysis. The gene product localizes to ribosomes, endosomes, the ESCRT I complex, and chromosomes.