A1 Refereed original research article in a scientific journal

Deceptive single-locus taxonomy and phylogeography: Wolbachia-associated divergence in mitochondrial DNA is not reflected in morphology and nuclear markers in a butterfly species




AuthorsKodandaramaiah U, Simonsen TJ, Bromilow S, Wahlberg N, Sperling F

PublisherWILEY-BLACKWELL

Publication year2013

JournalEcology and Evolution

Journal name in sourceECOLOGY AND EVOLUTION

Journal acronymECOL EVOL

Number in series16

Volume3

Issue16

First page 5167

Last page5176

Number of pages10

ISSN2045-7758

DOIhttps://doi.org/10.1002/ece3.886


Abstract
The satyrine butterfly Coenonympha tullia (Nymphalidae: Satyrinae) displays a deep split between two mitochondrial clades, one restricted to northern Alberta, Canada, and the other found throughout Alberta and across North America. We confirm this deep divide and test hypotheses explaining its phylogeographic structure. Neither genitalia morphology nor nuclear gene sequence supports cryptic species as an explanation, instead indicating differences between nuclear and mitochondrial genome histories. Sex-biased dispersal is unlikely to cause such mito-nuclear differences; however, selective sweeps by reproductive parasites could have led to this conflict. About half of the tested samples were infected by Wolbachia bacteria. Using multilocus strain typing for three Wolbachia genes, we show that the divergent mitochondrial clades are associated with two different Wolbachia strains, supporting the hypothesis that the mito-nuclear differences resulted from selection on the mitochondrial genome due to selective sweeps by Wolbachia strains.



Last updated on 2024-26-11 at 23:21