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Nestling immune response to phytohaemagglutinin is not heritable in collared flycatchers
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Animal Ecology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Animal Ecology.
2007 (English)In: Biology Letters, ISSN 1744-9561, E-ISSN 1744-957X, Vol. 3, no 4, 418-421 p.Article in journal (Refereed) Published
Abstract [en]

The response to intradermally injected phytohaemagglutinin (PHA-response) is a commonly used quantification of avian immunocompetence (the ability to resist pathogens). Parasite-mediated sexual selection requires heritable immunocompetence, but evidence for heritability of PHA-response in birds largely stems from full-sib comparisons. Using an animal model approach, we quantified the narrow-sense heritability of PHA-response in 1626 collared flycatcher (Ficedula albicollis) nestlings from 332 families, most of which were cross-fostered. Nestling PHA-response was not significantly heritable (h2=0.06±0.10), but was subject to non-heritable nest-of-origin effects (10% of variation). Our findings illustrate that full-sib comparisons of immunological measures may lead to an inflated estimate of heritability and also reveal a limited role of nestling PHA-response for sexual selection in this population.

Place, publisher, year, edition, pages
2007. Vol. 3, no 4, 418-421 p.
Keyword [en]
heritability, animal model, immunity, evolutionary quantitative genetics, wild population
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:uu:diva-13326DOI: 10.1098/rsbl.2007.0135ISI: 000247907000019PubMedID: 17567550OAI: oai:DiVA.org:uu-13326DiVA: diva2:41096
Available from: 2008-01-22 Created: 2008-01-22 Last updated: 2017-12-11Bibliographically approved

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Gustafsson, LarsSendecka, Joanna

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