XTR2 — Brachypodium distachyon

Summary

BdXTR2 (BRADI_4G29707V3) on chromosome 4 of Brachypodium distachyon encodes a xyloglucan endotransglucosylase/hydrolase (XTH) family protein with endoxyloglucan transferase activity (EC 2.4.1.207) and O-glucosyl hydrolase activity. The product localises to the apoplast, plant-type cell wall and cytoplasm. It is associated with cell wall assembly, biogenesis and organisation, xyloglucan and sucrose metabolism, phenylpropanoid anabolism, secondary cell wall biogenesis, and homeostasis. The gene has been linked to fruit development and ripening, root development, filament development, and phloem or xylem histogenesis. Associations with lignin content, root length, tracheary element development, reduced stamen elongation with impaired self-pollination, and lower internode development have been reported. Related genes in other species link the family to leaf vein morphology, stomatal resistance, stamen filament growth and self-pollination.