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Preprint

Evolution of a pest: towards the complete neuroethology of Drosophila suzukii and the subgenus Sophophora

MPG-Autoren
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Keesey,  Ian
Department of Evolutionary Neuroethology, Prof. B. S. Hansson, MPI for Chemical Ecology, Max Planck Society;

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Zhang,  Jin
Department of Evolutionary Neuroethology, Prof. B. S. Hansson, MPI for Chemical Ecology, Max Planck Society;

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Depetris-Chauvin,  Ana
Department of Evolutionary Neuroethology, Prof. B. S. Hansson, MPI for Chemical Ecology, Max Planck Society;

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Obiero,  George F.
Department of Evolutionary Neuroethology, Prof. B. S. Hansson, MPI for Chemical Ecology, Max Planck Society;

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Knaden,  Markus
Research Group Dr. M. Knaden, Insect Behavior, Department of Neuroethology, Prof. B. S. Hansson, MPI for Chemical Ecology, Max Planck Society;

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Hansson,  Bill S.
Department of Evolutionary Neuroethology, Prof. B. S. Hansson, MPI for Chemical Ecology, Max Planck Society;

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HAN338.pdf
(Preprint), 11MB

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HAN338s1.pdf
(Ergänzendes Material), 17MB

Zitation

Keesey, I., Zhang, J., Depetris-Chauvin, A., Obiero, G. F., Knaden, M., & Hansson, B. S. (submitted). Evolution of a pest: towards the complete neuroethology of Drosophila suzukii and the subgenus Sophophora.


Zitierlink: https://hdl.handle.net/21.11116/0000-0004-63DB-6
Zusammenfassung
Comparative analysis of multiple genomes has been used extensively to examine the evolution of chemosensory receptors across
the genus Drosophila. However, few studies have delved into functional characteristics, as most have relied exclusively on genomic
data alone, especially for non-model species. In order to increase our understanding of olfactory evolution, we have generated a
comprehensive assessment of the olfactory functions associated with the antenna and palps for Drosophila suzukii as well as several
other members of the subgenus Sophophora, thus creating a functional olfactory landscape across a total of 20 species. Here
we identify and describe several common elements of evolution, including consistent changes in ligand spectra as well as relative
receptor abundance, which appear heavily correlated with the known phylogeny. We also combine our functional ligand data with
protein orthologue alignments to provide a high-throughput evolutionary assessment and predictive model, where we begin to
examine the underlying mechanisms of evolutionary changes utilizing both genetics and odorant binding affinities. In addition, we
document that only a few receptors frequently vary between species, and we evaluate the justifications for evolution to reoccur repeatedly within only this small subset of available olfactory sensory neurons.