acontrol RNAi with empty pL4440 vector. Germ cell corpses were scored in adult hermaphrodites 20 hours post-L4 as in [59]. Statistical comparisons between genotypes were conducted using the two-tailed Mann-Whitney test. *syp-4(tm2713)* (n = 57; where n = number of gonad arms scored/genotype) differed significantly from wild type (n = 42) (p<0.0001), and from *spo-11*(n = 17) (p<0.0001), but did not differ significantly from *syp-3(ok758)* (n = 22) (p = 0.8471). *syp-4(RNAi);spo-11/nT1* (n = 51) differed significantly from *syp-4(RNAi);spo-11/spo-11* (n = 58) (p = 0.0122), *spo-11/nT1*(n = 20) (p<0.0001), and *spo-11/spo-11*(n = 17) (p = 0.0016). *syp-4(RNAi);spo-11/spo-11* and *spo-11/spo-11*(n = 17) did not differ significantly from each other (p = 0.0905).