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The cellular phenotype of cytoplasmic incompatibility in Culex pipiens in the light of cidB diversity
Development of embryos resulting from various Culex pipiens incompatible crosses was monitored to study CI cellular mechanism. Embryonic mortality due to Wolbachia-induced cytoplasmic incompatibility always resulted from defects of paternal chromatin segregation at the first nuclear division. However, these defects varied in terms of intensity putatively under the influence of cidB gene diversification. In the present image, embryos from infected father and uninfected mother did not display any visible development under microscope 48 hours post-oviposition resulting from an early arrest of embryogenesis. On the contrary, some embryos from incompatible infected parents exhibited further haploid development. See Figure 3 of Bonneau et al. Mathieu Sicard et al.
Image Credit: Bonneau M, et al.