AP1 — Triticum turgidum subsp. durum

Summary

TRITD5AV1G204680, also known as AP1, encodes a MADS-box transcription factor on durum wheat chromosome 5A. The protein contains MADS-box and K-box domains and exhibits RNA polymerase II transcription regulatory region sequence-specific DNA binding, transcription corepressor activity, and protein dimerization activity. It localizes to the nucleus and cytoplasm. This gene is associated with the regulation of the vegetative-to-reproductive phase transition, vernalization response, inflorescence and floral meristem identity, fruit and integument development, and auxin polar transport. It has been linked to agronomically important traits including flowering time, photoperiod sensitivity, grain weight, heading date, seed development, drought tolerance, and abiotic stress response. Studies of related genes in other species connect the family to floral organ senescence, abscission, grain shape, tillering, and internode elongation.