Pick Rollers to maintain. Endogenous N-term tagged DPFF-1 with mNG::AID* using the self-excising cassette for drug selection. Animals are rollers which contains sqt-1 gene. Remove the SEC for normal expression using the protocol described in "Dickinson DJ et al. Genetics. 2015 Aug;200(4):1035-49. doi: 10.1534/genetics.115.178335. Epub 2015 Jun 3. PMID: 26044593."