Mitochondrial DNA variation of Drosophila obscura (Diptera: Drosophilidae) across Europe
Erić, P., Stamenković-Rasak, M., Dragićević, M., Kankare, M., Wallace, M. A., Savić Veselinović, M., & Jelić, M. (2022). Mitochondrial DNA variation of Drosophila obscura (Diptera: Drosophilidae) across Europe. European Journal of Entomology, 119, 99-110. https://doi.org/10.14411/eje.2022.011
Published inEuropean Journal of Entomology
© 2022 Institute of Entomology, Biology Centre, Czech Academy of Sciences
Drosophila obscura is a common fruit fly that inhabits the temperate forests of Europe. While it is abundant in the north compared to other Drosophila, its density decreases southwards, where it is gradually replaced by other Drosophila species. This study describes variation in the mitochondrial Cyt b gene of D. obscura from several European populations. We observed a large number of haplotypes, together with the structuring of genetic variation. Genetic variation is higher in the west where O1 and related divergent haplotypes dominate. In the east, the O2 haplotype is most frequent, together with haplotypes that recently arose from it. In the central part of the species range, both O1 and O2 are equally present, along with many others. These data reveal signs of population expansions that probably happened earlier in the west, and more recently in the east. Though our conclusions are based on only one genetic marker, limiting the power of the analysis, the results imply either postglacial expansion from two unique sources or, more likely, eastwards stepping-stone expansion. This study adds important information on genetic variation and phylogeography to the obscure biology of D. obscura, a species that has the potential to become an interesting model in evolutionary biology and conservation genetics. ...
PublisherInstitute of Entomology
Publication in research information system
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Related funder(s)Academy of Finland
Funding program(s)Academy Project, AoF
Additional information about fundingThis research is financed by the Ministry of Education, Science and Technological Development of the Republic of Serbia (451-03-9/2021-14/200178 for MSR, MSV, and MJ; 451-03-9/2021-14/ 200007 to PE and MD). The research is supported through European Drosophila Population Genomics Consortium (DrosEU, which is funded by a Special Topic 587 Networks (STN) grant from the European Society for Evolutionary Biology). MK is supported by the Academy of Finland (grant no. 322980). MW was supported by the UK Natural Environmental Research Council through the E3 doctoral training programme (NE/L002558/1). ...
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