Assertion: nucleolus | /r/HasProperty | li et al
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text: The finding that many proteins involved in siRNA processing, including RDR2, DCL3, AGO4, and NRPD1b (the largest subunit of RNA Pol IVb) were identified with siRNAs within the nucleolus in plant cells suggest that processing of endogenous nuclear siRNAs, and possibly RISC storage or sequestration, occurs within the nucleolus (Li et al.