HD2 — Oryza sativa Indica Group

Summary

BGIOSGA026453 (HD2, also known as PRR37) on chromosome 7 of indica rice encodes a CCT domain-containing protein with DNA binding transcription factor activity, belonging to the CONSTANS-like family. This gene is associated with flowering time, downregulation of long-day photoperiodism, circadian rhythm, photoperiodism, flower development, histidyl-aspartyl phosphorelay, cytokinin signaling, red/far-red light phototransduction, regeneration, and DNA-dependent transcription, and localises to the nucleus. HD2 is also associated with days to heading, anthesis time, plant height, grain number, panicle and spikelet traits, and yield. Studies of related genes in other species link the CONSTANS-like group to photoperiodic flowering control.