CYR1 — Brachypodium distachyon

Summary

BdCYR1 (BRADI_3G03106V3) on Brachypodium distachyon chromosome 3 encodes a Polycomb-group protein containing Znf_SUZ12, EMF2-like_DUF7651 and VEFS-Box domains, with annotated histone H3K27 trimethylase activity, chromatin binding and transcription corepressor binding. The gene is associated with photoperiodism, regulation of long-day flowering, cellular response to cold, epigenetic programming in the endosperm, seed coat development, shoot morphogenesis, trichome differentiation, and specification of symmetry. It has been linked to yield, days to flowering, photoperiod sensitivity, vegetative to reproductive phase transition, leaf morphology, inflorescence morphology, flower development, endosperm morphology, seed development, vernalization response, cytokinin sensitivity, abscisic acid sensitivity, chlorophyll accumulation, leaf expansion, root system architecture, and hypoxia tolerance. Studies of related genes in other species link the family to vegetative shoot growth, plant architecture, and abnormal seedling and floral development.