YS1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.1HG0020320 (YS1, HvYS1) on barley chromosome 1H encodes a protein with E motif, PPR_At4g14850-like_plant, PPR_rpt, and TPR-like_helical_dom_sf domains, and is annotated with RNA nuclease activity and pre-rRNA, mRNA, RNA, identical protein, zinc, and protein binding. The gene is associated with chloroplast and mitochondrial mRNA modification, particularly cytidine-to-uridine editing, as well as thylakoid membrane organization, photosystem I assembly, regulation of chlorophyll biosynthesis, response to high light intensity and cold, positive regulation of translation, mRNA stabilization, regulation of translation, mRNA processing, RNA modification, secretion, and response to cold. YS1 is linked to chloroplast RNA editing, photosystem II assembly, chlorophyll fluorescence, chloroplast development, abscisic acid sensitivity, and RNA editing. The protein localizes to chloroplast stroma, plastids, mitochondria, vacuole, cytoplasm, and extracellular space. Related genes in other species are associated with photosynthetic acclimation, pale green leaves, defective RNA editing at ndhB and ndhD, impaired NDH activity, seedling vigor, leaf chlorosis, chlorophyll content, plant height, seed germination, and drought tolerance.