Interaction between host genotype and environmental conditions affects bacterial density in Wolbachia symbiosis
- 9 January 2007
- journal article
- Published by The Royal Society in Biology Letters
- Vol. 3 (2) , 210-213
Abstract
Regulation of microbial population density is a necessity in stable symbiotic interactions. In Wolbachia symbiosis, both bacterial and host genotypes are involved in density regulation, but environmental factors may also affect bacterial population density. Here, we studied the interaction between three strains of Wolbachia in two divergent homozygous lines of the wasp Leptopilina heterotoma at two different temperatures. Wolbachia density varied between the two host genotypes at only one temperature. Moreover, at this temperature, reciprocal-cross F1 insects displayed identical Wolbachia densities, which were intermediate between the densities in the two parental lines. While these findings confirm that the host genotype plays an important role in Wolbachia density, they also highlight its interaction with environmental conditions, making possible the evolution of local adaptations for the regulation of Wolbachia density.Keywords
This publication has 19 references indexed in Scilit:
- Hypervariable prophage WO sequences describe an unexpected high number of Wolbachia variants in the mosquito Culex pipiensProceedings Of The Royal Society B-Biological Sciences, 2005
- Infection density ofWolbachiaendosymbiont affected by co-infection and host genotypeBiology Letters, 2005
- Multiple infections and diversity of cytoplasmic incompatibility in a haplodiploid speciesHeredity, 2004
- Virulence, Multiple Infections and Regulation of Symbiotic Population in the Wolbachia-Asobara tabida SymbiosisGenetics, 2004
- Diversity, distribution and specificity of WO phage infection in Wolbachia of four insect speciesInsect Molecular Biology, 2004
- Thermal biology in insect-parasite interactionsTrends in Ecology & Evolution, 2003
- Parachlamydia acanthamoeba Is Endosymbiotic or Lytic for Acanthamoeba polyphaga Depending on the Incubation TemperatureAnnals of the New York Academy of Sciences, 2003
- Regulation of Wolbachia Density in the Mediterranean Flour Moth, Ephestia kuehniella, and the Almond Moth, Cadra cautellaZoological Science, 2003
- Challenging the trade-off model for the evolution of virulence: is virulence management feasible?Trends in Microbiology, 2003
- Internal Spatiotemporal Population Dynamics of Infection with ThreeWolbachiaStrains in the Adzuki Bean Beetle,Callosobruchus chinensis(Coleoptera: Bruchidae)Applied and Environmental Microbiology, 2002