AP1 — Triticum turgidum subsp. durum

Summary

TRITD1BV1G125760 (symbol AP1, also known as TtAP1, TtFYL1, TtFYL2, SOC1, TtXAL2, TtMADS50, AGL42, AGL20, TtAGL71, TtAGL72, AGL63, FYL2, GOA) on durum wheat chromosome 1B encodes a MADS-box transcription factor containing a K-box domain. It is associated with RNA polymerase II transcription regulatory region sequence-specific DNA binding, transcription corepressor activity, and protein dimerization activity. The gene is linked to the regulation of developmental processes, including maintenance of inflorescence and floral meristem identity, specification of floral organ identity, carpel and fruit development, and abscission. Associations with agronomic traits include photoperiod-sensitive flowering time, days to flowering, heading date, grain weight, seed growth and development, drought tolerance, and high temperature stress response. Studies of related genes in other species link the family to flower senescence and abscission, grain shape, tiller number, and reproductive transition.