LIN7A and infection: To address whether the lin-7-mediated infection phenotype was confounded by lin-7 mutants being prone to matricidal hatching, we treated an allelic series of three independent lin-7 loss-of-function genetic mutants, lin-7 (e1449), lin-7 (e1443) and lin-7 (n106) (Ferguson and Horvitz, 1985), with cdc-25.1 dsRNA to render them sterile (Evans et al., 2008; Shapira and Tan, 2008).