You have accessMoreSectionsView PDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmail Cite this article Zajitschek Felix, Zajitschek Susanne and Manier Mollie 2017Correction to ‘High-protein paternal diet confers an advantage to sons in sperm competition’Biol. Lett.132017029720170297http://doi.org/10.1098/rsbl.2017.0297SectionYou have accessCorrectionCorrection to ‘High-protein paternal diet confers an advantage to sons in sperm competition’ Felix Zajitschek Felix Zajitschek http://orcid.org/0000-0001-6010-6112 [email protected] Google Scholar Find this author on PubMed Search for more papers by this author , Susanne Zajitschek Susanne Zajitschek Google Scholar Find this author on PubMed Search for more papers by this author and Mollie Manier Mollie Manier Google Scholar Find this author on PubMed Search for more papers by this author Felix Zajitschek Felix Zajitschek http://orcid.org/0000-0001-6010-6112 [email protected] Google Scholar Find this author on PubMed Search for more papers by this author , Susanne Zajitschek Susanne Zajitschek Google Scholar Find this author on PubMed Search for more papers by this author and Mollie Manier Mollie Manier Google Scholar Find this author on PubMed Search for more papers by this author Published:19 July 2017https://doi.org/10.1098/rsbl.2017.0297This article corrects the followingResearch ArticleHigh-protein paternal diet confers an advantage to sons in sperm competitionhttps://doi.org/10.1098/rsbl.2016.0914 Felix Zajitschek, Susanne Zajitschek and Mollie Manier volume 13issue 2Biology Letters01 February 2017Biol. Lett.13, 20160914. (Published online 15 February 2017) (doi:10.1098/rsbl.2016.0914)In our recently published study on transgenerational paternal effects of larval diet on postcopulatory success and on gene expression in sons of D. melanogaster [1], we performed a logistic regression on proportional data of second-male fertilization success (P2) between the two diet treatments. A reader brought to our attention that we set the dispersion parameter in our analysis to 1, although the estimated dispersion is 7.08, and thus did not account for overdispersion. Instead of using a quasi-binomial error structure, which is not a generally recommended method to model overdispersion [2], we re-analysed our data [3] adding a normally distributed random intercept for each observation (binomial count) to the model [4]. This generalized mixed logistic regression, implemented with the R function glmer of the lme4 package, with an individual observation random effect and a binomial error structure gives p = 0.16.Unfortunately, the corrected analysis no longer supports our original conclusion of a difference in postcopulatory success between diet treatments. This has some important consequences for the published implications of this study. First, the title should be corrected to: Paternal diet affects differential gene expression, but not sperm competition, in sons (original title: High-protein paternal diet confers an advantage to sons in sperm competition). To correct the abstract and the discussion, we would like to point out that we are unable to show postcopulatory advantages conferred by parental diet (original sentence in the abstract: ‘We found that males reared on high-protein diet had sons that fared better during sperm competition, suggesting that postcopulatory sexual selection is subject to transgenerational paternal effects.’ Original parts in the discussion: ‘Sons of fathers reared on LP diet fared worse in sperm competition, …’ and ‘…, this is the first study reporting on postcopulatory advantages conferred by parental diet’). However, our observed effects of paternal larval diet on the sons' gene expression are independent of the result for paternity share. In sum, while we were unable to confirm dietary transgenerational effects on sperm competitiveness in the present study, our results on differential gene expression due to paternal diet indicate potentially important implications for spermatogenesis and invite further studies in this field.Footnotes© 2017 The Author(s)Published by the Royal Society. All rights reserved.References1Zajitschek F, Zajitschek S, Manier M. 2017High-protein paternal diet confers an advantage to sons in sperm competition. Biol. Lett. 13, 20160914. (doi:10.1098/rsbl.2016.0914) Link, ISI, Google Scholar2Collett D. 2002Modelling binary data, 2nd edn. Boca Raton, FL: Chapman and Hall. Crossref, Google Scholar3Zajitschek F, Zajitschek S, Manier M. 2017Data from: High-protein paternal diet confers an advantage to sons in sperm competition. Dryad Digital Repository. (http://dx.doi.org/10.5061/dryad.9qs53) Google Scholar4Jiang J. 2007Linear and generalized linear mixed models and their applications. New York, NY: Springer. Google Scholar Previous Article VIEW FULL TEXT DOWNLOAD PDF FiguresRelatedReferencesDetailsRelated articlesHigh-protein paternal diet confers an advantage to sons in sperm competition01 February 2017Biology Letters This IssueJuly 2017Volume 13Issue 7 Article InformationDOI:https://doi.org/10.1098/rsbl.2017.0297PubMed:28724690Published by:Royal SocietyOnline ISSN:1744-957XHistory: Published online19/07/2017Published in print31/07/2017 License:© 2017 The Author(s)Published by the Royal Society. All rights reserved. Citations and impact Subjectsevolution Large datasets are available through Biology Letters' partnership with Dryad