Loss of Small-RNA-Directed DNA Methylation in the Plant Cell Cycle Promotes Germline Reprogramming and Somaclonal Variation. - Borges F; Donoghue MTA; LeBlanc C; Wear EE; Tanurdžić M; Berube B; Brooks A; Thompson WF; Hanley-Bowdoin L; Martienssen RA (Current biology : CB, 2021)