MAS2 — Brassica oleracea var. botrytis

Summary

BoMAS2, located on cauliflower chromosome 8, encodes a protein containing NKAP and NKAP_C domains and exhibits DNA endonuclease activity producing 3'-phosphomonoesters, 5' flap endonuclease activity, RNA endonuclease activity, RNA helicase activity, and binds nucleic acids, chromatin, actin, and small RNAs. The gene is associated with pre-miRNA 3'-end processing, gene silencing by miRNA, virus-induced post-transcriptional gene silencing, rRNA maturation, ribosomal subunit assembly, auxin metabolism, leaf pattern formation, adventitious root development, and upregulation of cell division and calcium ion transport. It localizes to the nucleolus, plastid, Slx1-Slx4 complex, microprocessor complex, and spliceosome. BoMAS2 is linked to traits including seed yield, flowering time, leaf and inflorescence morphology, submergence tolerance, viral and aphid responses, high and low temperature stress responses, and seed viability. Studies of related genes in other species connect the family to miRNA activity, mRNA decay, post-transcriptional gene silencing, and cell division.