The chemical reactions and pathways occurring in the nucleus and resulting in the breakdown of a small nucleolar RNA (snoRNA) molecule, initiated by the enzymatic addition of a sequence of adenylyl residues (polyadenylation) at the 3' end the target snoRNA.
Taxonomy/Path:
GO : nuclear polyadenylation-dependent ncRNA catabolic process / nuclear polyadenylation-dependent snoRNA catabolic process