ZEP1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.2HG0172550 (symbol ZEP1, also known as HvZYP1, ZYP1A and ZYP1B) on barley chromosome 2H encodes a protein that localises to the nucleus, chromosome, cytoplasm, Golgi, vacuole and mitochondria. The product possesses protein-binding and phosphorylated-amino-acid-binding activity. In barley, ZEP1 is associated with meiotic prophase I, including zygotene, pachytene, diplotene, homologous chromosome pairing, reciprocal meiotic recombination, lateral element assembly, crossover formation and fidelity. It has been linked to meiotic recombination frequency, crossover interference, heterochiasmy, cold-induced pollen sterility, drought response, ABA signalling, nitrate uptake and assimilation, leaf composition, seedling growth, organ identity, brassinosteroid-mediated signalling, and cell proliferation. Studies of related genes in other species link the family to meiotic bivalent formation, meiotic stability, organ size and calcium signalling.