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Heritability of body size in the Chilean blue mussel ( Mytilus chilensis Hupé 1854): effects of environment and ageing

2007; Wiley; Volume: 38; Issue: 3 Linguagem: Inglês

10.1111/j.1365-2109.2007.01678.x

1365-2109

Angélica C Alcapán, Roberto F. Nespolo, Jorge E. Toro,

Fish Ecology and Management Studies

Aquaculture ResearchVolume 38, Issue 3 p. 313-320 Heritability of body size in the Chilean blue mussel (Mytilus chilensis Hupé 1854): effects of environment and ageing Angélica C. Alcapán, Angélica C. Alcapán Facultad de Ciencias, Instituto de Biología Marina, Universidad Austral de Chile, Casilla, Valdivia, ChileSearch for more papers by this authorRoberto F. Nespolo, Roberto F. Nespolo Facultad de Ciencias, Instituto de Ecología y Evolución, Universidad Austral de Chile, Casilla, Valdivia, ChileSearch for more papers by this authorJorge E. Toro, Jorge E. Toro Facultad de Ciencias, Instituto de Biología Marina, Universidad Austral de Chile, Casilla, Valdivia, ChileSearch for more papers by this author Angélica C. Alcapán, Angélica C. Alcapán Facultad de Ciencias, Instituto de Biología Marina, Universidad Austral de Chile, Casilla, Valdivia, ChileSearch for more papers by this authorRoberto F. Nespolo, Roberto F. Nespolo Facultad de Ciencias, Instituto de Ecología y Evolución, Universidad Austral de Chile, Casilla, Valdivia, ChileSearch for more papers by this authorJorge E. Toro, Jorge E. Toro Facultad de Ciencias, Instituto de Biología Marina, Universidad Austral de Chile, Casilla, Valdivia, ChileSearch for more papers by this author First published: 19 February 2007 https://doi.org/10.1111/j.1365-2109.2007.01678.xCitations: 30 Correspondence: J E Toro, Facultad de Ciencias, Instituto de Biología Marina, Universidad Austral de Chile, Casilla 567, Valdivia, Chile. E-mail: jtoro@uach.cl Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Selection, either natural or artificial, induces an inter-generational response only when the trait exhibits additive genetic variation. An index of additive genetic variation is narrow-sense heritability (h2): the ratio between additive genetic variance and phenotypic variance. Here, we present narrow-sense heritabilities for mass and size in the Chilean blue mussel Mytilus chilensis at different ages and in three different populations. We found that h2 changed with age and that maternal-non-additive variance was high, generating relatively low estimates of h2 in most cases. Our results, together with previous studies, suggest that genotype-by-environment interaction does not appear to play a significant role. However, we found that non-additive and common environmental variance are important determinants of phenotypic morphological variation in body size in M. chilensis. Further studies are needed to establish the precise contributions of these sources of variation, to assess the real potential for response to selection. Citing Literature Volume38, Issue3March 2007Pages 313-320 RelatedInformation