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- Title
Wolbachia segregation rate inDrosophila simulans naturally bi-infected cytoplasmic lineages.
- Authors
Poinsot, Denis; Montchamp-Moreau, Catherine; Merçot, Hervé
- Abstract
Wolbachia are maternally transmitted endocellular bacteria infecting several arthropod species. In order to study Wolbachia segregation rate, Drosophila simulans females from an Indo-Pacific population (Seychelles) bi-infected by the two Wolbachia variants wHa and wNo were backcrossed to uninfected males in two conditions. In the first case, Seychelles males from a stock cured from its Wolbachia by tetracycline treatment were used. In the second case, the males came from a naturally uninfected Tunisian population. It was found that (i) the two Wolbachia variants can segregate, so that bi-infected females can produce a few offspring infected only by wHa or wNo. This occurs in both backcross conditions. (ii) Segregation leads more frequently to wHa than to wNo mono-infection. (iii) Wolbachia transmission is lower when the Seychelles genome is introgressed by the Tunisian genome, suggesting that host genomic factors might influence infection fate.
- Subjects
DROSOPHILA; CELL membranes
- Publication
Heredity, 2000, Vol 85, Issue 2, p191
- ISSN
0018-067X
- Publication type
Article
- DOI
10.1046/j.1365-2540.2000.00736.x