Chatterjee, A, Lagisz, M, Rodger, EJ et al. (8 more authors) (2016) Sex differences in DNA methylation and expression in zebrafish brain: a test of an extended ‘male sex drive’ hypothesis. Gene, 590 (2). pp. 307-316. ISSN 0378-1119
Abstract
The sex drive hypothesis predicts that stronger selection on male traits has resulted in masculinization of the genome. Here we test whether such masculinizing effects can be detected at the level of the transcriptome and methylome in the adult zebrafish brain. Although methylation is globally similar, we identified 914 specific differentially methylated CpGs (DMCs) between males and females (435 were hypermethylated and 479 were hypomethylated in males compared to females). These DMCs were prevalent in gene body, intergenic regions and CpG island shores. We also discovered 15 distinct CpG clusters with striking sex-specific DNA methylation differences. In contrast, at transcriptome level, more female-biased genes than male-biased genes were expressed, giving little support for the male sex drive hypothesis. Our study provides genome-wide methylome and transcriptome assessment and sheds light on sex-specific epigenetic patterns and in zebrafish for the first time.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016, Elsevier Ltd. This is an author produced version of a paper published in Gene. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Zebrafish; Sexual dimorphism; Male sex drive; Masculinization; Brain; RRBS; CpG site; CpG island; DNA methylation; RNA-Seq |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Biological Sciences (Leeds) > School of Biology (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 02 Jun 2016 11:29 |
Last Modified: | 01 Jul 2017 19:57 |
Published Version: | http://dx.doi.org/10.1016/j.gene.2016.05.042 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.gene.2016.05.042 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:100375 |