The etiological agent of cytoplasmic incompatibility in Culex pipiens |
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Authors: | J H Yen A R Barr |
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Institution: | School of Public Health, University of California, Los Angeles 90024 USA |
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Abstract: | All individuals of Culex pipiens (wide sense) which have been examined were infected with Wolbachia pipientis. Larvae reared in tetracycline were freed of these symbiotes and remained free (aposymbiotic) in future generations. When males were freed of their symbiotes, they no longer displayed incompatibility. Aposymbiotic males were compatible with all females, whether infected or not. Aposymbiotic females, on the other hand, laid fertile eggs after mating with aposymbiotic males, but not after mating with normal males. Most eggs laid by aposymbiotic females after mating with normal males showed no development at all, even though the females had been inseminated. |
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