FRG1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.7HG0696030 (HvFRG1) on barley chromosome 7H encodes a SNF2/RAD54-like helicase with ATP-dependent chromatin remodeller activity, DNA translocase and nucleosome array spacer activities, and histone methylase activity. It also contains a RING-type zinc finger domain. The gene is associated with abscisic acid signalling, stomatal closure, seed germination, regulation of endosperm development, and responses to heat stress and thirst. It has been linked to reproductive period, flavonoid and chlorophyll content, delayed flowering, reduced root growth, and DNA methylation. Studies of related genes in rice connect the family to immune response, blast disease, and defence. Sequence similarity links the family to numerous agronomic traits including grain yield, grain weight, grains per spike, plant height, drought and salinity tolerance, stripe rust resistance, amylose content, and stay green trait.