Wolbachia segregation rate in Drosophila simulans naturally bi-infected cytoplasmic lineages

Article Abstract:

Females from an Indo-Pacific Drosophila simulans population were bi-infected with two variants and backcrossed to uninfected males, in one case from a stock cured using tetracycline and in the other from a naturally uninfected Tunisian population. The two Wolbachia variants were seen to be able to segregate. Wolbachia transmission is lower when the Indo-Pacific genome is introgressed by the Tunisian one. This indicates host genomic factors may influence infection fate.

Seychelles, Diseases, Endosymbiosis

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A field cage test of the effects of the endosymbiont Wolbachia on Drosophila melanogaster

Article Abstract:

A field cage test has been used to look into the effects of the endosymbiont Wolbachia on Drosophila melanogaster. Fitness effects of Wolbachia in D. melanogaster were studied. Mortality rates in the field cages went up only a little over time. Both Wolbachia effects and population differences have not been seen before in laboratory studies with D. melanogaster and highlight the utility of Drosophila field studies in fitness experiments.

Australia, Statistical Data Included, Reports, Environmental aspects, Genetic research

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Characterization of non-cytoplasmic incompatibility inducing Wolbachia in two continental African populations of Drosophila simulans

Article Abstract:

Research has been conducted on endocellular bacterium Wolbachia which infects nematodes and arthropods. The authors have investigated cytoplasmic incompatibility phenotype, phylogenetic position based on wsp gene and associated mitochondrial haplotype of Wolbachia infections occurring in African populations of Drosophila simulans, and they report the results.

Science & research, Demographic aspects, Symbiosis, Mitochondria, Population genetics, Haplotypes, Cytoplasm

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