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Genetic and environmental variation in immune response of collared flycatcher nestlings
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.
2006 (English)In: Journal of Evolutionary Biology, ISSN 1010-061X, E-ISSN 1420-9101, Vol. 19, no 5, 1701-1706 p.Article in journal (Refereed) Published
Abstract [en]

This paper aims at partitioning genetic and environmental contribution to the phenotypic variance in nestling immune function measured with the hypersensitivity test after inoculation with phytohaemagglutinin. A cross-fostering experiment with artificial enlargement of some broods was conducted. Variation in nestling immune response was related to their common origin, which suggests heritable component of cell-mediated immunity. A common rearing environment also explained a significant part of variation. However, deterioration of rearing conditions as simulated by enlargement of brood size did not affect nestling immunocompetence, although it affected nestling body mass. Variation in body mass explained some of the variation in immune response related to rearing environment, which means that growth is more sensitive to the shifts in rearing conditions than the development of immune function. Heritable variation in immune response suggests that there should be potential for selection to operate and the micro evolutionary changes in immunity of flycatcher nestlings are possible.

Place, publisher, year, edition, pages
2006. Vol. 19, no 5, 1701-1706 p.
Keyword [en]
brood size manipulation, genetic variation, immunocompetence, phytohaemagglutinin
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:uu:diva-22972DOI: 10.1111/j.1420-9101.2006.01110.xISI: 000239692000042PubMedID: 16910999OAI: oai:DiVA.org:uu-22972DiVA: diva2:50745
Available from: 2007-01-24 Created: 2007-01-24 Last updated: 2017-12-07Bibliographically approved

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Sendecka, JoannaGustafsson, Lars

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