Evolutionary dynamics of wAu-Like Wolbachia variants in neotropical Drosophila spp.

Miller, WJ and Riegler, M (2006) Evolutionary dynamics of wAu-Like Wolbachia variants in neotropical Drosophila spp.. Applied And Environmental Microbiology, 72 1: 826-835. doi:10.1128/AEM.72.1.826-835.2006

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Author Miller, WJ
Riegler, M
Title Evolutionary dynamics of wAu-Like Wolbachia variants in neotropical Drosophila spp.
Journal name Applied And Environmental Microbiology   Check publisher's open access policy
ISSN 0099-2240
Publication date 2006
Sub-type Article (original research)
DOI 10.1128/AEM.72.1.826-835.2006
Open Access Status File (Publisher version)
Volume 72
Issue 1
Start page 826
End page 835
Total pages 10
Place of publication Washington
Publisher American Society of Microbiology
Collection year 2006
Language eng
Subject C1
270301 Bacteriology
780105 Biological sciences
Abstract Wolbachia bacteria are common intracellular symbionts of arthropods and have been extensively studied in Drosophila. Most research focuses on two Old Word hosts, Drosophila melanogaster and Drosophila simulans, and does not take into account that some of the Wolbachia associations in these species may have evolved only after their fast global expansion and after the exposure to Wolbachia of previously isolated habitats. Here we looked at Wolbachia of Neotropical Drosophila species. Seventy-one lines of 16 Neotropical Drosophild species sampled in different regions and at different time points were analyzed. Wolbachia is absent in lines of Drosophild willistoni collected before the 1970s, but more recent samples are infected with a strain designated wWiL Wolbachia is absent in all other species of the willistoni group. Polymorphic wWil-related strains were detected in some saltans group species, with D. septentriosaltans being coinfected with at least four variants. Based on wsp and ftsZ sequence data, wWil of D. willistoni is identical to wAu, a strain isolated from D. simulans, but can be discriminated when using a polymorphic minisatellite marker. In contrast to wAu, which infects both germ line and somatic tissues of D. simulans, wWil is found exclusively in the primordial germ line cells of D. willistoni embryos. We report on a pool of closely related Wolbachia strains in Neotropical Drosophila species as a potential source for the wAu strain in D. simulans. Possible evolutionary scenarios reconstructing the infection history of wAu-like Wolbachia in Neotropical Drosophild species and the Old World species D. simulans are discussed.
Keyword Biotechnology & Applied Microbiology
Microbiology
Induced Cytoplasmic Incompatibility
Intraspecific Horizontal Transfer
Infection Frequencies
Rhagoletis-cerasi
Simulans
Host
Melanogaster
Population
Parthenogenesis
Transmission
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 08:44:10 EST