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

被引：0
|
作者：
Denis Poinsot
Catherine Montchamp-Moreau
Hervé Merçot
机构：
[1] Institut Jacques Monod,
[2] Laboratoire Dynamique du Génome & Evolution,undefined
[3] Tour 42–4,undefined
[4] CNRS – Universités Paris 6 & 7,undefined
[5] Laboratoire d’Ecobiologie des Parasitoïdes,undefined
[6] Université de Rennes I,undefined
[7] Campus Beaulieu,undefined
[8] Bat. 25,undefined
[9] Laboratoire Population Génétique et Evolution,undefined
[10] CNRS,undefined
[11] 13 Avenue de la Terrasse,undefined
来源：
Heredity | 2000年 / 85卷
关键词：
bi-infection; endosymbiosis; segregation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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.
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页码：191 / 198
页数：7
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