alexa Tissue-specific infection dynamics of male-killing and nonmale-killing spiroplasmas in Drosophila melanogaster.


Journal of Alzheimers Disease & Parkinsonism

Author(s): Anbutsu H, Fukatsu T

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Abstract The male-killing spiroplasma strain NSRO causes an extremely female-biased sex ratio of the host, Drosophila melanogaster, as a result of selective death of male offspring during embryogenesis. The spiroplasma strain NSRO-A, a variant of NSRO, does not cause such symptoms. In an attempt to gain insights into the mechanism underlying the symbiont-induced reproductive phenotype, infection densities of the spiroplasmas in different tissues were monitored during host aging using a quantitative PCR technique. The density dynamics in the hemolymph were reminiscent of those in the whole body, whereas the density dynamics in the fat body, intestine and ovary were not. These results suggest that the majority of the spiroplasmas colonize and proliferate in the hemolymph of the host. In the hemolymph and whole body, the infection densities of NSRO were generally higher than those of NSRO-A, which may be related to the different reproductive phenotypes caused by the spiroplasmas. This article was published in FEMS Microbiol Ecol and referenced in Journal of Alzheimers Disease & Parkinsonism

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