Data from: Experimental evolution of infectious behaviour in a facultative ectoparasite
Parasitic lifestyles have evolved many times in animals, but how such life-history strategies evolved from free-living ancestors remains a great puzzle. Transitional symbiotic strategies, such as facultative parasitism, are hypothesized evolutionary stepping-stones towards obligate parasitism. Howev...
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ftdryad:oai:v1.datadryad.org:10255/dryad.166852 2023-05-15T18:50:34+02:00 Data from: Experimental evolution of infectious behaviour in a facultative ectoparasite Durkin, Emily S. Luong, Lien T. 2017-12-21T14:37:42Z http://hdl.handle.net/10255/dryad.166852 https://doi.org/10.5061/dryad.9p0nm unknown doi:10.5061/dryad.9p0nm/1 doi:10.1111/jeb.13227 doi:10.5061/dryad.9p0nm Durkin ES, Luong LT (2018) Experimental evolution of infectious behaviour in a facultative ectoparasite. Journal of Evolutionary Biology 31(3): 362-370. http://hdl.handle.net/10255/dryad.166852 Artificial selection evolution of parasitism infectivity realized heritability Macrocheles muscaedomesticae Drosophila Article 2017 ftdryad https://doi.org/10.5061/dryad.9p0nm https://doi.org/10.5061/dryad.9p0nm/1 https://doi.org/10.1111/jeb.13227 2020-01-01T16:02:19Z Parasitic lifestyles have evolved many times in animals, but how such life-history strategies evolved from free-living ancestors remains a great puzzle. Transitional symbiotic strategies, such as facultative parasitism, are hypothesized evolutionary stepping-stones towards obligate parasitism. However, to consider this hypothesis, heritable genetic variation in infectious behaviour of transitional symbiotic strategies must exist. In this study, we experimentally evolved infectivity and estimated the additive genetic variation in a facultative parasite. We performed artificial selection experiments in which we selected for either increased or decreased propensity to infect in a facultatively parasitic mite (Macrocheles muscaedomesticae). Here, infectiousness was expressed in terms of mite attachment to a host (Drosophila hydei) and modeled as a threshold trait. Mites responded positively to selection for increased infectivity; realized heritability of infectious behaviour was significantly different from zero and estimated to be 16.6% (±4.4% SE). Further, infection prevalence was monitored for 20 generations post-selection. Selected lines continued to display relatively high levels of infection demonstrating a degree of genetic stability in infectiousness. Our study is the first to provide an estimate of heritability and additive genetic variation for infectious behaviour in a facultative parasite, which suggests natural selection can act upon facultative strategies with important implications for the evolution of parasitism. Article in Journal/Newspaper Mite Stepping Stones Dryad Digital Repository (Duke University) Stepping Stones ENVELOPE(-63.992,-63.992,-64.786,-64.786) |
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Dryad Digital Repository (Duke University) |
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topic |
Artificial selection evolution of parasitism infectivity realized heritability Macrocheles muscaedomesticae Drosophila |
spellingShingle |
Artificial selection evolution of parasitism infectivity realized heritability Macrocheles muscaedomesticae Drosophila Durkin, Emily S. Luong, Lien T. Data from: Experimental evolution of infectious behaviour in a facultative ectoparasite |
topic_facet |
Artificial selection evolution of parasitism infectivity realized heritability Macrocheles muscaedomesticae Drosophila |
description |
Parasitic lifestyles have evolved many times in animals, but how such life-history strategies evolved from free-living ancestors remains a great puzzle. Transitional symbiotic strategies, such as facultative parasitism, are hypothesized evolutionary stepping-stones towards obligate parasitism. However, to consider this hypothesis, heritable genetic variation in infectious behaviour of transitional symbiotic strategies must exist. In this study, we experimentally evolved infectivity and estimated the additive genetic variation in a facultative parasite. We performed artificial selection experiments in which we selected for either increased or decreased propensity to infect in a facultatively parasitic mite (Macrocheles muscaedomesticae). Here, infectiousness was expressed in terms of mite attachment to a host (Drosophila hydei) and modeled as a threshold trait. Mites responded positively to selection for increased infectivity; realized heritability of infectious behaviour was significantly different from zero and estimated to be 16.6% (±4.4% SE). Further, infection prevalence was monitored for 20 generations post-selection. Selected lines continued to display relatively high levels of infection demonstrating a degree of genetic stability in infectiousness. Our study is the first to provide an estimate of heritability and additive genetic variation for infectious behaviour in a facultative parasite, which suggests natural selection can act upon facultative strategies with important implications for the evolution of parasitism. |
format |
Article in Journal/Newspaper |
author |
Durkin, Emily S. Luong, Lien T. |
author_facet |
Durkin, Emily S. Luong, Lien T. |
author_sort |
Durkin, Emily S. |
title |
Data from: Experimental evolution of infectious behaviour in a facultative ectoparasite |
title_short |
Data from: Experimental evolution of infectious behaviour in a facultative ectoparasite |
title_full |
Data from: Experimental evolution of infectious behaviour in a facultative ectoparasite |
title_fullStr |
Data from: Experimental evolution of infectious behaviour in a facultative ectoparasite |
title_full_unstemmed |
Data from: Experimental evolution of infectious behaviour in a facultative ectoparasite |
title_sort |
data from: experimental evolution of infectious behaviour in a facultative ectoparasite |
publishDate |
2017 |
url |
http://hdl.handle.net/10255/dryad.166852 https://doi.org/10.5061/dryad.9p0nm |
long_lat |
ENVELOPE(-63.992,-63.992,-64.786,-64.786) |
geographic |
Stepping Stones |
geographic_facet |
Stepping Stones |
genre |
Mite Stepping Stones |
genre_facet |
Mite Stepping Stones |
op_relation |
doi:10.5061/dryad.9p0nm/1 doi:10.1111/jeb.13227 doi:10.5061/dryad.9p0nm Durkin ES, Luong LT (2018) Experimental evolution of infectious behaviour in a facultative ectoparasite. Journal of Evolutionary Biology 31(3): 362-370. http://hdl.handle.net/10255/dryad.166852 |
op_doi |
https://doi.org/10.5061/dryad.9p0nm https://doi.org/10.5061/dryad.9p0nm/1 https://doi.org/10.1111/jeb.13227 |
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1766244305836441600 |