GS2 — Triticum turgidum subsp. durum

Summary

TRITD2BV1G214250, designated GS2 (also known as TtGS2, TtGRF6, TtGRF5, TtGRF3, GRF2, GRF1, GS2, GRF3, GRF6, GRF5, TtGRF2, TtGRF1), encodes a growth-regulating factor (GRF) family protein on durum wheat chromosome 2B. The product contains QLQ and WRC domains and is annotated with transcription coactivator activity, ATP binding, and protein binding, localizing to the nucleus. GS2 is associated with seed development, grain filling period, grain weight, protein content, and yield traits, as well as leaf and floral organ development, root meristem growth, cell division and proliferation, and responses to cold, deep water, and gibberellin. It is linked to water use efficiency, anthocyanin content, oxidative stress response, and nitrogen-related processes. Studies of related genes in other species connect the family to grain size, heat and cold tolerance, organ size, regeneration efficiency, and salt tolerance.