OS06G0142600 — Oryza sativa Japonica

Summary

Rice ELF3 (also known as HD3B, OsELF3) on chromosome 6 encodes an ELF3-like protein with multiple annotated molecular functions including receptor tyrosine kinase binding, auxin receptor activity, red light photoreceptor activity, and histone kinase activity. The gene is directly associated with heading date in rice. It is associated with a wide range of biological processes including upregulation of short-day photoperiodism flowering, photoentrainment of circadian clock, positive regulation of thermomorphogenesis, regulation of auxin biosynthetic process, and chloroplast-nucleus signaling pathway. Associations with agronomically important traits include grain number, panicle number, culm length, drought stress response trait, photoperiod sensitivity trait, chlorophyll ratio, leaf area trait, and vegetative vigor. The gene is also linked to responses to far red light sensitivity and blue light sensitivity, as well as to fruit and flower development traits. Studies of related genes in other species link the family to phytochromobilin biosynthesis, heat tolerance, drought stress resistance, and circadian regulation.