UBC Research Data

Data from: Temporal variation favors the evolution of generalists in experimental populations of Drosophila melanogaster Condon, Catriona; Cooper, Brandon S.; Yeaman, Sam; Angilletta Jr., Michael J.; Angilletta, Michael J.

Description

<b>Abstract</b><br/>In variable environments, selection should favor generalists that maintain fitness across a range of conditions. However, costs of adaptation may generate fitness trade-offs and lead to some compromise between specialization and generalization that maximizes fitness. Here, we evaluate the evolution of specialization and generalization in 20 populations of Drosophila melanogaster experimentally evolved in constant and variable thermal environments for 3 years. We developed genotypes from each population at two temperatures after which we measured fecundity across eight temperatures. We predicted that constant environments would select for thermal specialists and that variable environments would select for thermal generalists. Contrary to our predictions, specialists and generalists did not evolve in constant and spatially variable environments, respectively. However, temporal variation produced a type of generalist that has rarely been considered by theoretical models of developmental plasticity. Specifically, genotypes from the temporally variable selective environment were more fecund across all temperatures than were genotypes from other environments. These patterns suggest certain allelic effects and should inspire new directions for modeling adaptation to fluctuating environments.; <b>Usage notes</b><br /><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Fecundity data</h4><div class="o-metadata__file-description">development, selective environment, population, isofemale line, centroid size, fecundity at 14C, 16C, 20.5C, 25C, 28C, 320C, 32C, 36C.</div><div class="o-metadata__file-name">Fecunditydata.csv</br></div></div>

Item Metadata

Title	Data from: Temporal variation favors the evolution of generalists in experimental populations of Drosophila melanogaster
Creator	Condon, Catriona; Cooper, Brandon S.; Yeaman, Sam; Angilletta Jr., Michael J.; Angilletta, Michael J.
Date Issued	2021-05-20
Description	<b>Abstract</b><br/>In variable environments, selection should favor generalists that maintain fitness across a range of conditions. However, costs of adaptation may generate fitness trade-offs and lead to some compromise between specialization and generalization that maximizes fitness. Here, we evaluate the evolution of specialization and generalization in 20 populations of Drosophila melanogaster experimentally evolved in constant and variable thermal environments for 3 years. We developed genotypes from each population at two temperatures after which we measured fecundity across eight temperatures. We predicted that constant environments would select for thermal specialists and that variable environments would select for thermal generalists. Contrary to our predictions, specialists and generalists did not evolve in constant and spatially variable environments, respectively. However, temporal variation produced a type of generalist that has rarely been considered by theoretical models of developmental plasticity. Specifically, genotypes from the temporally variable selective environment were more fecund across all temperatures than were genotypes from other environments. These patterns suggest certain allelic effects and should inspire new directions for modeling adaptation to fluctuating environments.; <b>Usage notes</b><br /><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Fecundity data</h4><div class="o-metadata__file-description">development, selective environment, population, isofemale line, centroid size, fecundity at 14C, 16C, 20.5C, 25C, 28C, 320C, 32C, 36C.</div><div class="o-metadata__file-name">Fecunditydata.csv</br></div></div>
Subject	Other; Experimental evolution; specialist-generalist tradeoffs; thermal adaptation
Type	Dataset
Notes	Dryad version number: 1</p> Version status: submitted</p> Dryad curation status: Published</p> Sharing link: https://datadryad.org/stash/share/h3MAurBnY0LvmeR8Ysh0nF4DTvvaiXJryyO_S6i0Kwo</p> Storage size: 41115</p> Visibility: public</p>
Date Available	2020-06-24
Provider	University of British Columbia Library
License	This dataset is made available under a Creative Commons CC0 license with the following additional/modified terms and conditions: CC0 Waiver
DOI	10.14288/1.0398067
URI	https://doi.org/10.5683/SP2/06KBRB
Publisher DOI	https://doi.org/10.5683/SP2/06KBRB; https://doi.org/10.5061/dryad.7gs24
Rights URI	https://creativecommons.org/publicdomain/zero/1.0/
Aggregated Source Repository	Dataverse

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This dataset is made available under a Creative Commons CC0 license with the following additional/modified terms and conditions: CC0 Waiver

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