CEP1 — Asparagus officinalis

Summary

A4U43_C07F19220 (CEP1) on asparagus chromosome 7 encodes a papain-like cysteine peptidase of the Peptidase_C1A_C family with thiol endopeptidase activity. The gene is associated with programmed cell death involved in cell development, floral organ senescence, anther wall tapetum development, and responses to nutrient levels, sugars, cytokinin, ethylene, auxin, brassinosteroid, and UV-B. It localises to senescence-associated vacuoles, lysosomes, protein storage vacuoles, and the ER. Associations include leaf senescence, shoot and root growth, seed yield, nitrogen remobilisation, drought tolerance, stomatal closure, pollen development and fertility, secondary wall thickening, insect resistance, and osmotic and salt stress responses. Related genes in other species link the family to developmental senescence, powdery mildew resistance, cadmium-induced programmed cell death, and saccharification efficiency.