BMB Rep. 2015; 48(5): 241-242  
Battle of the sexes over paternity
Young-Joon Kim1,*, Kang-Min Lee1 & R. Elwyn Isaac2
1School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju 500-712, Korea, 2School of Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT U.K.
Correspondence to: E-mail: kimyj@gist.ac.kr
Received: April 8, 2015; Published online: May 31, 2015.
© Korean Society for Biochemistry and Molecular Biology. All rights reserved.

Abstract
Reproductive behaviors have evolved through severe inter- sexual competition. We have recently described a behavior in post-mated female Drosophila melanogaster that controls ejaculate retention and sperm storage, and is a possible mechanism by which females who have mated with several partners can choose which sperm that is stored and used for fertilization. This behavior can also regulate exposure of the female to harmful effects of male SFP that are present in the ejaculate. Our study identified the neural pathway functioning in the female brain that regulates this behavior.
Keywords: Sperm ejection, Post copulatory sexual selection, Cryptic female choice, Diuretic hormone 44, Female reproductive behavior, Drosophila melanogaster


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