PHS1 — triticum aestivum

Summary

TRAESCS7A02G233900, symbol PHS1 on bread wheat chromosome 7A, encodes a protein containing the PH_PHS1 domain. The gene is directly annotated to pre-harvest sprouting, seed germination, and catabolism, as well as meiosis, homologous chromosome pairing, DNA recombination, and protein metabolism. It is associated with grain yield, seed size, cold tolerance, and drought tolerance. The encoded product localises to the cytoplasm and is linked to circadian rhythm and expression of the CHE gene. Associations also include floral organ identity, pistil specification, and various reproductive developmental stages such as carpel and stamen primordia, ovule development, and megaspore formation. Studies of related genes in other species connect the PHS1 family to vivipary, starch content, and grain size.