Fig. 7. Male mating behavior is abnormal in IFT mutants. Response and location of vulva efficiency is scored for each genotype. Two independent integrated PKD-2::GFP transgenic lines (myIs1 and myIs4) rescue Response and Lov defects of the pkd-2 mutant (only myIs4 is shown). Three IFT kinesin mutants (osm-3, kap-1, klp-11) exhibit Response and Lov defects. Non-null osm-3(e1806) exhibits wild-type male mating behavior (Barr and Sternberg, 1999). Error bars indicate s.e.m. between multiple assays, and each assay consisted of at least 20 animals. An asterisk marks wherever the data are significantly different from wild type (^*P<0.05, ^**P<0.01, ^***P<0.001). n, number of males examined.