THE STRATEGY. “This leads to development failing unless the zygote inherits a Wolbachia from the mother that is able to rescue embryonic development (the rescue function). When the male and female parents are infected with different Wolbachia strains, it is also common to find that the cross is incompatible (bidirectional CI). This suggests the modification and rescue factors must match each other for development to proceed normally.” (CI = cytoplasmic incompatibility).
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