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BOR - Papers in Press, published online ahead of print October 25, 2006.
Biol Reprod 2006, 10.1095/biolreprod.106.056259
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BIOLOGY OF REPRODUCTION 76, 184–188 (2007)
DOI: 10.1095/biolreprod.106.056259
© 2007 by the Society for the Study of Reproduction, Inc.

review-article

Sex-Sorted Sperm and Fertility: An Alternative View

Valerie J. Grant 1 2, and Lawrence W. Chamley 3

Department of Psychological Medicine,2 Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand Department of Obstetrics and Gynaecology and Fertility Plus,3 Green Lane Hospital, Auckland, New Zealand

ABSTRACT

Although contemporary methods of physically separating X from Y chromosome-bearing spermatozoa are now very efficient, overall fertility rates following the use of sex-sorted sperm are not as impressive, in spite of many attempts to improve them. At the same time, there are suggestions from evolutionary biology, and from sex allocation theory in particular, that there may need to be a modification to the chance theory of sex determination in mammals. This is because it now appears that the mammalian female could have some influence on the sex of her offspring, and furthermore, that this influence could be preconceptual. If so, this could go some way towards accounting for the putative inefficiencies in fertilization following insemination with sex-sorted sperm.

assisted reproductive technology, fertilization, gamete biology, sperm

Correspondence: 1FAX: 64 9 3737 013; e-mail: vj.grant{at}auckland.ac.nz




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Can Bovine In Vitro-Matured Oocytes Selectively Process X- or Y-Sorted Sperm Differentially?
Biol Reprod, October 1, 2008; 79(4): 594 - 597.
[Abstract] [Full Text] [PDF]


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Copyright © 2007 by the Society for the Study of Reproduction.