RESUMO

The prevalence of the endosymbiont Wolbachia pipientis and its effects on mitochondrial genetic diversity were analyzed in natural populations of Drosophila willistoni, a neotropical species recently infected. Total infection rate was 55% and no evidence was found that the Wolbachia infection decreased the diversity of mtDNA. Wolbachia was seen to be associated with different mitochondria, suggesting multiple horizontal transmission events and/or transmission paternal leakage of mitochondrial and/or Wolbachia. These hypotheses are evaluated in the context of the present study and other research.

Assuntos

Drosophila/microbiologia , Infecções por Bactérias Gram-Negativas/veterinária , Mitocôndrias/genética , Wolbachia/patogenicidade , Animais , Brasil , DNA Mitocondrial/genética , Drosophila/genética , Evolução Molecular , Transferência Genética Horizontal , Variação Genética , Infecções por Bactérias Gram-Negativas/microbiologia , Haplótipos , Interações Hospedeiro-Patógeno , Mitocôndrias/microbiologia , Controle Biológico de Vetores , Simbiose , Wolbachia/fisiologia