SEN4 — Asparagus officinalis

Summary

AoSEN4 (SEN4) on asparagus chromosome 10 encodes a beta-glucanase/XTH family protein with xyloglucan-specific endo-beta-1,4-glucanase and endoxyloglucan transferase activities. It is associated with xyloglucan catabolism, cell wall loosening, assembly, and organization, as well as responses to gibberellin, auxin, brassinosteroid, salt, and far-red light. The gene is linked to primary root development, leaf vascular tissue pattern formation, secondary cell wall biogenesis, and lignin anabolism. It localizes to the apoplast, plant-type cell wall, Golgi, and secretory vesicle. Associations include chlorophyll content, seed growth and development, aluminum response, brassinosteroid sensitivity, lateral root development, salt tolerance, leaf senescence, freezing tolerance, and shade avoidance. Studies of related genes in other species connect the family to root elongation, vascular development, aluminum tolerance, and freezing stress resistance.