Author:
Lucek Kay,Bouaouina Selim,Jospin Amanda,Grill Andrea,de Vos Jurriaan M.
Abstract
Abstract
Background
Wolbachia is an endosymbiont common to most invertebrates, which can have significant evolutionary implications for its host species by acting as a barrier to gene flow. Despite the importance of Wolbachia, still little is known about its prevalence and diversification pattern among closely related host species. Wolbachia strains may phylogenetically coevolve with their hosts, unless horizontal host-switches are particularly common. We address these issues in the genus Erebia, one of the most diverse Palearctic butterfly genera.
Results
We sequenced the Wolbachia genome from a strain infecting Erebia cassioides and showed that it belongs to the Wolbachia supergroup B, capable of infecting arthropods from different taxonomic orders. The prevalence of Wolbachia across 13 closely related Erebia host species based on extensive population-level genetic data revealed that multiple Wolbachia strains jointly infect all investigated taxa, but with varying prevalence. Finally, the phylogenetic relationships of Wolbachia strains are in some cases significantly associated to that of their hosts, especially among the most closely related Erebia species, demonstrating mixed evidence for phylogenetic coevolution.
Conclusions
Closely related host species can be infected by closely related Wolbachia strains, evidencing some phylogenetic coevolution, but the actual pattern of infection more often reflects historical or contemporary geographic proximity among host species. Multiple processes, including survival in distinct glacial refugia, recent host shifts in sympatry, and a loss of Wolbachia during postglacial range expansion seem to have jointly shaped the complex interactions between Wolbachia evolution and the diversification of its host among our studied Erebia species.
Publisher
Springer Science and Business Media LLC
Reference65 articles.
1. Weinert LA, Araujo-Jnr EV, Ahmed MZ, Welch JJ. The incidence of bacterial endosymbionts in terrestrial arthropods. P R Soc B. 2015;282:20150249.
2. Werren JH. Wolbachia and speciation. In: Howard DJ, Berlocher SH, editors. Endless forms: species and speciation. Oxford: Oxford University Press; 1998. p. 245–60.
3. Bailly-Bechet M, Martins-Simões P, Szöllősi GJ, Mialdea G, Sagot M-F, Charlat S. How long does Wolbachia remain on board? Mol Biol Evol. 2017;34:1183–93.
4. Jiggins FM, Hurst GDD, Dolman CE, Majerus MEN. High-prevalence male-killing Wolbachia in the butterfly Acraea encedana. J Evol Biol. 2000;13:495–501.
5. Fukui T, Kawamoto M, Shoji K, Kiuchi T, Sugano S, Shimada T, Suzuki Y, Katsuma S. The endosymbiotic bacterium Wolbachia selectively kills male hosts by targeting the masculinizing gene. PLoS Pathog. 2015;11:e1005048.
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