Quantitative genetic modeling of the parental care hypothesis for the evolution of endothermy

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dc.contributor.authorBacigalupe, L.D.
dc.contributor.authorMoore, A.J.
dc.contributor.authorNespolo, R.F.
dc.contributor.authorRezende, E.L.
dc.contributor.authorBozinovic, F.
dc.date.accessioned2018-05-29T19:48:22Z
dc.date.available2018-05-29T19:48:22Z
dc.date.issued2017-12
dc.descriptionIndexación: Scopus.es_ES
dc.description.abstractThere are two heuristic explanations proposed for the evolution of endothermy in vertebrates: a correlated response to selection for stable body temperatures, or as a correlated response to increased activity. Parental care has been suggested as a major driving force in this context given its impact on the parents' activity levels and energy budgets, and in the offspring's growth rates due to food provisioning and controlled incubation temperature. This results in a complex scenario involving multiple traits and transgenerational fitness benefits that can be hard to disentangle, quantify and ultimately test. Here we demonstrate how standard quantitative genetic models of maternal effects can be applied to study the evolution of endothermy, focusing on the interplay between daily energy expenditure (DEE) of the mother and growth rates of the offspring. Our model shows that maternal effects can dramatically exacerbate evolutionary responses to selection in comparison to regular univariate models (breeder's equation). This effect would emerge from indirect selection mediated by maternal effects concomitantly with a positive genetic covariance between DEE and growth rates. The multivariate nature of selection, which could favor a higher DEE, higher growth rates or both, might partly explain how high turnover rates were continuously favored in a self-reinforcing process. Overall, our quantitative genetic analysis provides support for the parental care hypothesis for the evolution of endothermy. We contend that much has to be gained from quantifying maternal and developmental effects on metabolic and thermoregulatory variation during adulthood.es_ES
dc.description.urihttps://www.frontiersin.org/articles/10.3389/fphys.2017.01005/full
dc.identifier.citationFrontiers in Physiology, 8(DEC), art. no. 1005.es_ES
dc.identifier.issn1664-042X
dc.identifier.otherDOI: 10.3389/fphys.2017.01005
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/5917
dc.language.isoenes_ES
dc.publisherFrontiers Mediaes_ES
dc.subjectDaily energy expenditurees_ES
dc.subjectEndothermyes_ES
dc.subjectMaternal effectses_ES
dc.subjectParental carees_ES
dc.subjectQuantitative geneticses_ES
dc.titleQuantitative genetic modeling of the parental care hypothesis for the evolution of endothermyes_ES
dc.typeArtículoes_ES
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