PP — Asparagus officinalis

Summary

AoPP (A4U43_C02F21340) on asparagus chromosome 2 encodes a poly(ADP-ribose) polymerase (PARP) family protein with NAD+-protein-aspartate ADP-ribosyltransferase, NAD+-protein-glutamate ADP-ribosyltransferase, poly(ADP-ribose) glycohydrolase, and nucleotidyltransferase activities, and binds DNA, mRNA, and zinc. The gene is associated with DNA ADP-ribosylation, protein poly-ADP-ribosylation, regulation of DNA repair, double-strand break repair, chromosome condensation, rRNA processing, and responses to oxidative stress, heat, abscisic acid, osmotic stress, and fungal defence. It localises to the nucleus, nucleolus, and mitochondria. Associations include flowering time, flower morphology, root thickness, jasmonic acid content, disease tolerance, salt tolerance, water use efficiency, and plant growth and development traits. Studies of related genes in other species link the family to seed storability, DNA damage response, basal defence, and abiotic stress resistance.