SEN4 — Asparagus officinalis

Summary

AoSEN4 (SEN4) on asparagus chromosome 5 encodes a xyloglucan endotransglucosylase/hydrolase (XTH) with xyloglucan-specific endo-beta-1,4-glucanase activity and endoxyloglucan transferase activity, belonging to the GH16 beta-glucanase/XTH family. The gene is associated with cell wall loosening, assembly, and organization, as well as xyloglucan catabolism and metabolism. It is linked to responses to gibberellin, auxin, brassinosteroid, salt, and far-red light, and to primary root development, secondary cell wall biogenesis, lignin anabolism, and leaf vascular tissue pattern formation. The product localizes to the apoplast, plant-type cell wall, Golgi complex, and secretory vesicle. Associations include chlorophyll content, seed growth and development, aluminum response, brassinosteroid sensitivity, lateral root development, salt tolerance, leaf senescence, and freezing tolerance. Related genes in other species are linked to root elongation, vascular development, and aluminum tolerance.