(a) Sex-proportion minimizes ladies fecundity
Overall, SR/ST females produce fewer offspring than ST/ST females (Fdos,dos = 7.0, p = 0.0013), and this is significant for each SR strain (SRMe personally: t = ?2.9, p = 0.0049; SRNyc: t = ?2.4, p = 0.018). However, there was not a significant difference in the effect of SR strain on female fecundity (SRMe personally: 159 ± 8.3 (mean ± s.e.), SRNyc: 174 ± 11.5; Fstep 1,step 1 = 3.7, p = 0.056). Across both SR strains combined, SR/ST females produced an average of 165 ± 6.7 offspring (n = 74) whereas ST/ST females produced an average of 197 ± 6.1 offspring (n = 66), a 16.3% reduction in fecundity (95% CI 0.074–0.245).
Figure 1. Female fecundity of SR carriers is reduced when compared with wild-type females. Two different SR chromosomes were assayed (SRMe personally and SRNy) in heterozygous females, and each was compared to wild-type (ST/ST) females with an otherwise similar genetic background. The dark line in the box indicates the median and the bottom and top of the box indicate the first and third quartiles, respectively. (Online version in colour.)
(b) Zero effectation of sex-proportion toward toughness
We find segregating variation for longevity, but we do not find that SR carriers show reduced survival relative to ST carriers. We assayed 2669 flies for longevity, which included female and male carriers of two different SR chromosomes and four different ST chromosomes (electronic supplementary material, table S1). Continue reading “We find you to definitely SR/ST ladies experience quicker fecundity in line with ST/ST people (shape step one)”