TSN — Triticum aestivum

Summary

TRAESCS5D02G522100, designated Tsn1 on bread wheat chromosome 5D, encodes a Tudor-domain protein with nuclease and hydrolase activity that binds RNA and mRNA. The gene is associated with susceptibility to spot blotch and Septoria nodorum blotch in wheat. It is linked to spore formation, sporulation, genetic transfer, positive regulation of gibberellin biosynthetic process, protein secretion, mRNA breakdown, metabolic burst, cellular response to heat, response to cadmium, karrikin, nitrate, and various transport processes including calcium and proton transmembrane transport. The product localises to the RNAi effector complex, P body, stress granule, nuclear envelope, endoplasmic reticulum, plasmodesma, and plastid. Associations with days to heading, plant height, grain yield, salt and heat stress tolerance, grain weight, and delayed germination have also been noted. Studies of the Arabidopsis relative TUDOR2 link the family to seed germination and gibberellin biosynthesis.