Differential effects of genetic vs. environmental quality in Drosophila melanogaster suggest multiple forms of condition dependence
dc.contributor.author
dc.date.accessioned
2015-09-16T11:56:56Z
dc.date.available
2015-09-16T11:56:56Z
dc.date.issued
2015-04
dc.identifier.issn
1461-023X
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dc.description.abstract
Condition is a central concept in evolutionary ecology, but the roles of genetic and environmental quality in condition-dependent trait expression remain poorly understood. Theory suggests that condition integrates genetic, epigenetic and somatic factors, and therefore predicts alignment between the phenotypic effects of genetic and environmental quality. To test this key prediction, we manipulated both genetic (mutational) and environmental (dietary) quality in Drosophila melanogaster and examined responses in morphological and chemical (cuticular hydrocarbon, CHC) traits in both sexes. While the phenotypic effects of diet were consistent among genotypes, effects of mutation load varied in magnitude and direction. Average effects of diet and mutation were aligned for most morphological traits, but non-aligned for the male sexcombs and CHCs in both sexes. Our results suggest the existence of distinct forms of condition dependence, one integrating both genetic and environmental effects and the other purely environmental. We propose a model to account for these observations
dc.description.sponsorship
We thank M. Adler and L. Rowe for discussion, and A. Moore, W. Forstmeier and an anonymous reviewer for thoughtful comments on the manuscript. MAM created the hemiclonal lines and performed mutation accumulation in the laboratory of, and supported by, A. Chippindale. E. Bath, E. Cassidy and M. Telford assisted with morphometrics. Funding was provided by the Australian Research Council (RB), the Natural Sciences and Engineering Research Council of Canada (DA, HDR), the Canadian Foundation for Innovation (HDR) and the Spanish Ministry of Economy and Competitiveness under the project 'METRICS' (Ref. MTM2012-33236)
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
dc.relation
info:eu-repo/grantAgreement/MINECO//MTM2012-33236/ES/METODOS ESTADISTICOS EN ESPACIOS RESTRINGIDOS/
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Reproducció digital del document publicat a: http://dx.doi.org/10.1111/ele.12412
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© Ecology Letters, 2015, vol. 18, núm. 4, p. 317-326
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Articles publicats (D-IMA)
dc.rights
Tots els drets reservats
dc.title
Differential effects of genetic vs. environmental quality in Drosophila melanogaster suggest multiple forms of condition dependence
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/embargoedAccess
dc.embargo.terms
Cap
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2026-01-01
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.contributor.funder
dc.relation.ProjectAcronym
dc.identifier.eissn
1461-0248