Fig. 4

Reduction of male body size and reproductive apparatus in auto-pseudogamous Mesorhabditis species. The raw data are in Table S4. For each measure, between 8 and 20 individuals were analyzed. Sexual species are shown in black and pseudogamous species are in blue. M. sp: M. spiculigera AF72, M. l: M. longespiculosa DF5017, M. be: M. belari JU2817, M. p: M. paucipapillata JU3003, M. si: M. simplex JU2864, M. o: M. okuensis JU3143, M. bi: M. bifurcata JU2902, M. m: M. monhystera JU2855. a Boxplot of body size for females (in white) and males (in grey) for each strain. b Drawing of the male tail, to scale, in a sexual and a pseudogamous strain, in ventral view. c Boxplot of the length of the longest rays as a proportion of male body size for each strain. d Boxplot of spicule size shown as a proportion of male body size for each strain. A GLMM model has been used to test the statistical difference in morphological traits (a, c, d) for pseudogamous species compared to sexual species