Journal article

Drosophila suzukii: the genetic footprint of a recent, world-wide invasion

  • Adrion, Jeffrey R. Department of Biology, Indiana University, Bloomington, USA
  • Kousathanas, Athanasios Department of Biology, University of Fribourg, Switzerland - Swiss Institute of Bioinformatics, Lausanne, Switzerland
  • Pascual, Marta Department of Genetics and IRBio, University of Barcelona, Barcelona, Spain
  • Burrack, Hannah J. Department of Entomology, North Carolina State University, Raleigh, USA
  • Haddad, Nick M. Department of Biological Sciences, North Carolina State University, Raleigh, USA
  • Bergland, Alan O. Department of Biology, Stanford University, Stanford, USA
  • Machado, Heather Department of Biology, Stanford University, Stanford, USA
  • Sackton, Timothy B. Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, USA
  • Schlenke, Todd A. Department of Biology, Reed College, Portland, USA
  • Watada, Masayoshi Department of Biology, Ehime University, Matsuyama, Ehime, Japan
  • Wegmann, Daniel Department of Biology, University of Fribourg, Switzerland - Swiss Institute of Bioinformatics, Lausanne, Switzerland
  • Singh, Nadia D. Department of Biological Sciences, North Carolina State University, Raleigh, USA
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    25.08.2014
Published in:
  • Molecular Biology and Evolution. - 2014, p. msu246
English Native to Asia, the soft-skinned fruit pest Drosophila suzukii has recently invaded the United States and Europe. The eastern United States represents the most recent expansion of their range, and presents an opportunity to test alternative models of colonization history. Here we investigate the genetic population structure of this invasive fruit fly, with a focus on the eastern United States. We sequenced six X-linked gene fragments from 246 individuals collected from a total of 12 populations. We examine patterns of genetic diversity within and between populations and explore alternative colonization scenarios using Approximate Bayesian Computation. Our results indicate high levels of nucleotide diversity in this species and suggest that the recent invasions of Europe and the continental United States are independent demographic events. More broadly speaking, our results highlight the importance of integrating population structure into demographic models, particularly when attempting to reconstruct invasion histories. Finally, our simulation results illustrate the general challenge of reconstructing invasion histories using genetic data and suggest that genome-level data are often required to distinguish among alternative demographic scenarios.
Faculty
Faculté des sciences et de médecine
Department
Département de Biologie
Language
  • English
Classification
Biological sciences
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/303525
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