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Environmental effects on cytoplasmic incompatibility and bacterial load in Wolbachia-infected Drosophila simulans

Clancy, D. J. and Hoffmann, A. A. (1998) Environmental effects on cytoplasmic incompatibility and bacterial load in Wolbachia-infected Drosophila simulans. Entomologia Experimentalis et Applicata, 86 (1). pp. 13-24.

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Abstract

The effects of high temperatures, antibiotics, nutrition and larval density on cytoplasmic incompatibility caused by a Wolbachia infection were investigated in Drosophila simulans. Exposure of larvae from an infected stock to moderate doses of tetracycline led to complete incompatibility when treated females were crossed to infected males; the same doses only caused a partial restoration of compatibility when treated males were crossed to uninfected females. In crosses with treated females, there was a strong correlation between dose effects on hatch rates and infection levels in embryos produced by these females. Ageing and rearing males at a high temperature led to increased compatibility. However, exposing infected females to a high temperature did not influence their compatibility with infected males. Male temperature effects depended on conditions experienced at the larval stage but not the pupal stage. Exposure to 25 degrees C reduced the density of Wolbachia in embryos compared with a 19 degrees C treatment. Low levels of nutrition led to increased compatibility, but no effect of larval crowding was detected. These findings show the ways environmental factors can influence the expression of cytoplasmic incompatibility and suggest that environmental effects may be mediated by bacterial density.

Item Type: Article
Journal or Publication Title: Entomologia Experimentalis et Applicata
Additional Information: Jan Environmental effects on cytoplasmic incompatibility and bacterial load in Wolbachia-infected Drosophila simulans
Subjects: UNSPECIFIED
Departments: Faculty of Health and Medicine > Biomedical & Life Sciences
ID Code: 50162
Deposited By: ep_importer_pure
Deposited On: 30 Sep 2011 16:52
Refereed?: Yes
Published?: Published
Last Modified: 09 Apr 2014 22:44
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/50162

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