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Sex-Biased Networks and Nodes of Sexually Antagonistic Conflict in Drosophila
Joint Authors
Hansen, Matthew E. B.
Kulathinal, Rob J.
Source
International Journal of Evolutionary Biology
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-01-22
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Sexual antagonism, or conflict, can occur when males and females harbor opposing reproductive strategies.
The large fraction of sex-biased genes in genomes present considerable opportunities for conflict to occur, suggesting that sexual antagonism may potentially be a general phenomenon at the molecular level.
Here, we employ a novel strategy to identify potential nodes of sexual conflict in Drosophila melanogaster by coupling male, female, and sex-unbiased networks derived from genome-wide expression data with available genetic and protein interaction data.
We find that sex-biased networks comprise a large fraction (~1/3) of the total interaction network with the male network possessing nearly twice the number of nodes (genes) relative to the female network.
However, there are far less edges or interaction partners among male relative to female subnetworks as seen in their power law distributions.
We further identified 598 sex-unbiased genes that can act as indirect nodes of interlocus sexual conflict as well as 271 direct nodal pairs of potential conflict between male- and female-biased genes.
The pervasiveness of such potentially conflicting nodes may explain the rapid evolution of sex-biased as well as non-sex-biased genes via this molecular mechanism of sexual selection even among taxa such as Drosophila that are nominally sexually dimorphic.
American Psychological Association (APA)
Hansen, Matthew E. B.& Kulathinal, Rob J.. 2013. Sex-Biased Networks and Nodes of Sexually Antagonistic Conflict in Drosophila. International Journal of Evolutionary Biology،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-480290
Modern Language Association (MLA)
Hansen, Matthew E. B.& Kulathinal, Rob J.. Sex-Biased Networks and Nodes of Sexually Antagonistic Conflict in Drosophila. International Journal of Evolutionary Biology No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-480290
American Medical Association (AMA)
Hansen, Matthew E. B.& Kulathinal, Rob J.. Sex-Biased Networks and Nodes of Sexually Antagonistic Conflict in Drosophila. International Journal of Evolutionary Biology. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-480290
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-480290