ASN — Triticum aestivum

Summary

TRAESCS1A02G422100 (TaASN) on chromosome 1A encodes an asparagine synthase (glutamine-hydrolyzing) with aspartate-ammonia ligase activity, belonging to the Asn_synthase family. This gene is associated with L-asparagine anabolism, cellular response to sucrose starvation, and responses to fructose, glucose, sucrose, and absence of light. It is linked to abscisic acid sensitivity, heat tolerance, grain filling period, grain weight, and photosynthetic rate. Associations also include nitrogen assimilation, metabolism, export, reutilization, and remobilization, as well as ammonium metabolism, phosphate starvation tolerance, leaf senescence, salt stress tolerance, and plant growth. The gene product localizes to the cytosol, plasmodesma, and stress granules. Studies of related genes in other species connect the family to grain yield, drought tolerance, cold tolerance, seed weight, protein content, and water use efficiency.