SR45 — Triticum aestivum

Summary

TRAESCS2B02G424400, designated TaSR45, encodes a pre-mRNA-binding protein on wheat chromosome 2B. The product is associated with RNA splicing, including regulation of alternative mRNA splicing via the spliceosome, and with protein binding and oligomerization. It has been connected to floral organ development, photoperiodism and flowering time, circadian rhythm, and responses to high light intensity, hydrogen peroxide, mannitol, and ER stress. TaSR45 is linked to grain weight and yield, stem rust and BLS tolerance, salt and osmotic stress tolerance, jasmonic acid content and signaling, and leaf and root morphology traits. The protein localises to nuclear speckles, the nucleolus, the catalytic step 2 spliceosome, and the cytosol. Studies of related genes in other species link the family to embryo development, ABA sensitivity, and flower morphology.