VRN3 — Sorghum bicolor

Summary

SORBI_3006G047700, designated VRN3 on sorghum chromosome 6, encodes a phosphatidylethanolamine-binding protein (PEBP family member). The gene is associated with phosphatidylethanolamine binding and is linked to the regulation of flowering time, including photoperiodism, the transition from vegetative to reproductive phase, and inflorescence development. It has been connected to both upregulation of vernalization response and downregulation of flower development, as well as response to short-day conditions. VRN3 is associated with anthesis time and localises to the cytoplasm, nucleus and endoplasmic reticulum. Studies of related PEBP family members in wheat link the family to seasonality traits.