XTH1 — Cicer arietinum

Summary

AhXTR7 (XTH1) on chickpea chromosome 14 encodes an endoxyloglucan transferase with O-glucosyl hydrolase activity, belonging to the GH16/XTH family. The product is associated with xyloglucan metabolism, cell wall biogenesis and organization, fruit ripening, and responses to gibberellin, abscisic acid, and far-red light. It localizes to the apoplast, plant-type cell wall, cytoplasm, and plasmalemma. The gene is associated with petiole elongation, shade avoidance, aluminum resistance, osmotic stress tolerance, drought and heat stress responses, salt tolerance, freezing stress resistance, root and cell elongation, leaf vein development, stamen filament growth, and brassinosteroid sensitivity. Related genes in other species are linked to cell wall rigidity, reduced petiole growth under low R/FR, and gravity response.