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Fitness effects of Wolbachia and Spiroplasma in Drosophila melanogaster.
Genetica 2006; 127(1-3):207-15G

Abstract

Maternally inherited endosymbionts that manipulate the reproduction of their insect host are very common. Aside from the reproductive manipulation they produce, the fitness of these symbionts depends in part on the direct impact they have on the female host. Although this parameter has commonly been investigated for single infections, it has much more rarely been established in dual infections. We here establish the direct effect of infection with two different symbionts exhibiting different reproductive manipulation phenotypes, both alone and in combination, in the fruit fly Drosophila melanogaster. This species carries a cytoplasmic incompatibility inducing Wolbachia and a male-killing Spiroplasma, occurring as single or double (co-) infections in natural populations. We assessed direct fitness effects of these bacteria on their host, by comparing larval competitiveness and adult fecundity of uninfected, Wolbachia, Spiroplasma and Wolbachia-Spiroplasma co-infected females. We found no effect of infection status on the fitness of females for both estimates, that is, no evidence of any benefits or costs to either single or co-infection. This leads to the conclusion that both bacteria probably have other sources of benefits to persist in D. melanogaster populations, either by means of their reproductive manipulations (fitness compensation from male death in Spiroplasma infection and cytoplasmic incompatibility in Wolbachia infection) or by positive fitness interactions on other fitness components.

Authors+Show Affiliations

Depto Genética e Evolução, Instituto de Biologia, Universidade Estadual de Campinas, CEP 13083-970, Campinas, SP, Brasil. h.montenegro@gmail.comNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16850225

Citation

Montenegro, H, et al. "Fitness Effects of Wolbachia and Spiroplasma in Drosophila Melanogaster." Genetica, vol. 127, no. 1-3, 2006, pp. 207-15.
Montenegro H, Petherwick AS, Hurst GD, et al. Fitness effects of Wolbachia and Spiroplasma in Drosophila melanogaster. Genetica. 2006;127(1-3):207-15.
Montenegro, H., Petherwick, A. S., Hurst, G. D., & Klaczko, L. B. (2006). Fitness effects of Wolbachia and Spiroplasma in Drosophila melanogaster. Genetica, 127(1-3), pp. 207-15.
Montenegro H, et al. Fitness Effects of Wolbachia and Spiroplasma in Drosophila Melanogaster. Genetica. 2006;127(1-3):207-15. PubMed PMID: 16850225.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fitness effects of Wolbachia and Spiroplasma in Drosophila melanogaster. AU - Montenegro,H, AU - Petherwick,A S, AU - Hurst,G D D, AU - Klaczko,L B, PY - 2005/03/22/received PY - 2005/10/01/accepted PY - 2006/7/20/pubmed PY - 2006/11/2/medline PY - 2006/7/20/entrez SP - 207 EP - 15 JF - Genetica JO - Genetica VL - 127 IS - 1-3 N2 - Maternally inherited endosymbionts that manipulate the reproduction of their insect host are very common. Aside from the reproductive manipulation they produce, the fitness of these symbionts depends in part on the direct impact they have on the female host. Although this parameter has commonly been investigated for single infections, it has much more rarely been established in dual infections. We here establish the direct effect of infection with two different symbionts exhibiting different reproductive manipulation phenotypes, both alone and in combination, in the fruit fly Drosophila melanogaster. This species carries a cytoplasmic incompatibility inducing Wolbachia and a male-killing Spiroplasma, occurring as single or double (co-) infections in natural populations. We assessed direct fitness effects of these bacteria on their host, by comparing larval competitiveness and adult fecundity of uninfected, Wolbachia, Spiroplasma and Wolbachia-Spiroplasma co-infected females. We found no effect of infection status on the fitness of females for both estimates, that is, no evidence of any benefits or costs to either single or co-infection. This leads to the conclusion that both bacteria probably have other sources of benefits to persist in D. melanogaster populations, either by means of their reproductive manipulations (fitness compensation from male death in Spiroplasma infection and cytoplasmic incompatibility in Wolbachia infection) or by positive fitness interactions on other fitness components. SN - 0016-6707 UR - https://www.unboundmedicine.com/medline/citation/16850225/Fitness_effects_of_Wolbachia_and_Spiroplasma_in_Drosophila_melanogaster_ L2 - https://doi.org/10.1007/s10709-005-3766-4 DB - PRIME DP - Unbound Medicine ER -