GI — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.6HG0617960 (HvGI) on barley chromosome 6H encodes a DNA-3-methyladenine glycosylase with alkylbase DNA glycosidase activity (EC 3.2.2.21), placing it in the methylpurine DNA glycosylase (MPG) family. The product localises to the nucleus and is associated with base excision repair (BER) and photoperiodism. HvGI is also linked to anthesis time. Studies of related genes in other species connect the family to grain yield, node number, drought tolerance, and circadian cycle length, though these associations are not yet established in barley.