Viruses and Taxonomy

Pupae of Cotesia Parasitoid Wasps. The adults inject the caterpillar with a polydnavirus that destroys the immune system.

The incorporation of polydnavirus genes into the chromosomes of some Hymenopteran parasitoids is a remarkable example of a mutualistic interaction between two species evolving into a single organism. As discussed in a previous post, the polydnavirus attacks the immune system of the parasitoid’s host allowing the parasitoid egg to grow and develop without interference…

Source: Living With Insects Blog

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