Mitochondrial DNA variation of Drosophila obscura (Diptera: Drosophilidae) across Europe
2022
Authors:
Erić, PavleStamenković-Radak, Marina
Dragićević, Milan
Kankare, Maaria
Wallace, Megan A.
Savić Veselinović, Marija
Jelić, Mihailo
Document Type:
Article (Published version)
Metadata
Show full item recordAbstract:
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.
Keywords:
Cyt b; Genetic variation; Population expansion; PhylogeographySource:
European Journal of Entomology, 2022, 119, 99-110Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200007 (University of Belgrade, Institute for Biological Research 'Siniša Stanković') (RS-MESTD-inst-2020-200007)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200178 (University of Belgrade, Faculty of Biology) (RS-MESTD-inst-2020-200178)
- European Drosophila Population Genomics Consortium (DrosEU) - Special Topic 587 Networks (STN) grant from the European Society for Evolutionary Biology
- Academy of Finland (322980)
- UK Research & Innovation (UKRI) Natural Environment Research Council (NERC) (NE/L002558/1)
DOI: 10.14411/eje.2022.011
ISSN: 1802-8829
WoS: 000754425400001
Scopus: 2-s2.0-85124270946
URI
http://www.eje.cz/doi/10.14411/eje.2022.011.htmlhttp://radar.ibiss.bg.ac.rs/handle/123456789/4872