Wild type N2 Bristol C. elegans were grown and maintained at 20°C as described.33 The feeding method of RNAi delivery was used to deplete PLK-1, as previously described by Timmons and Fire.34 RNAi plasmids for PLK-1 were obtained from the Geneservice Ltd. C. elegans feeding library.35 E. coli HT115 (DE3) bacteria was transformed with the control or PLK-1 RNAi plasmids. Plating of RNAi and feeding RNAi was described previously.36 The L4440 RNAi vector was used as an RNAi control.
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