Genetic variation and causes of genotype-environment interaction in the body size of blue tit (Parus caeruleus).

Genetics
J Merilä, J D Fry

Abstract

In several studies of natural populations of birds, the heritability of body size estimated by parent-offspring regression has been lower when offspring have developed in poor feeding regimens than when they developed in good feeding regimens. This has led to the suggestion that adaptation under poor regimens may be constrained by lack of genetic variation. We examined the influence of environmental conditions on expression of genetic variation in body size of nestling blue tits (Parus caeruleus) by raising full sibs in artificially reduced and enlarged broods, corresponding to good and poor feeding regimens, respectively. Individuals grown in the poor regimen attained smaller body size than their sibs grown in the good regimen. However, there was among-family variation in response to the treatments--i.e., genotype-environment interactions (GEIs). Partitioning the GEI variance into contributions attributable to (1) differences in the among-family genetic variance between the treatments and (2) imperfect correlation of genotypic values across treatments identified the latter as the main cause of the GEI. Parent-offspring regressions were not significantly different when offspring were reared in the good environment (h2 = 0.75) v...Continue Reading

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Citations

May 8, 2021·Biological Reviews of the Cambridge Philosophical Society·Agata Plesnar-Bielak, Aleksandra Łukasiewicz
Jul 24, 2004·Journal of Evolutionary Biology·A CharmantierM M Lambrechts
Apr 8, 2006·Journal of Evolutionary Biology·A M Danielson-FrançoisM D Greenfield
Apr 10, 2013·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Daniel E RuncieJenny Tung
Jul 14, 2005·Proceedings. Biological Sciences·Anne Charmantier, Dany Garant
Jul 21, 2005·Molecular Ecology·Anne Charmantier, Denis Réale
Apr 6, 2002·Proceedings. Biological Sciences·Kevin Fowler, Michael C Whitlock
May 12, 2007·Evolution; International Journal of Organic Evolution·Ryan Calsbeek, Thomas B Smith
Jul 3, 2003·Evolution; International Journal of Organic Evolution·Dany GarantLouis Bernatchez
Apr 3, 2004·Evolution; International Journal of Organic Evolution·Anne CharmantierMarcel M Lambrechts
Jan 5, 2002·Evolution; International Journal of Organic Evolution·E SvenssonT Comendant
May 14, 1999·Trends in Ecology & Evolution·A A Hoffmann, J Merilä
Dec 5, 2008·Evolution; International Journal of Organic Evolution·Mark E SherrardRobert G Latta
May 12, 2010·Journal of Evolutionary Biology·Szymon M DrobniakM Cichoń
Aug 9, 2011·The Journal of Animal Ecology·Claire DoutrelantPhilippe Perret

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