Article Abstract:
The parasitoid Leptopilina boulardi has been found to suppress the immune reaction of Drosophila melanogaster hosts through the injection of virus-like particles. The hypothesis that this ability is regulated by a single chromosomal factor with semidominant effect was investigated. The range of possible genotypic values in back-crosses was examined utilizing various progeny that were genotypically homogenous. Findings contradict the polygenic effect for a trait governing the interaction between the insect and the parasitoid.
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Article Abstract:
A new specific Drosophila gene for wasp cellular immune resistance is discussed relative to a study for which two inbred strains of Drosophila melanogaster with opposite immune capacities relative to the parasitoid Asobara tabida, a wasp for the eggs of which D. melanogaster larvae have a hemocytic reaction leading to formation of a multicellular capsule holding the foreign object, were developed..
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Article Abstract:
Genetic variation in resistance of Drosophila yakuba to the parasitoid wasp Leptopilina boulardi is described. It is demonstrated that there are different resistance patterns to the parasitoid species L. boulardi in D. melanogaster and D. yakuba and different specificity levels in the parasitoid species, which suggests complex ecological interactions in the field.
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