Document Detail

A polycystin-1 controls postcopulatory reproductive selection in mice.
MedLine Citation:
PMID:  18562295     Owner:  NLM     Status:  MEDLINE    
Pkdrej, a member of the polycystin-1 gene family, is expressed only in the male germ line. Male mice that are homozygous for a targeted mutation in the Pkdrej allele (Pkdrej(tm/tm)) are fertile in unrestricted mating trials, but exhibit lower reproductive success when competing with wild-type males in sequential mating trials and in artificial insemination of mixed-sperm populations. Following mating, sperm from Pkdrej(tm/tm) mice require >2 h longer than those of wild-type males to be detected within the egg/cumulus complex in the oviduct. Sperm from mice of both genotypes are able to capacitate in vitro. However, one of the component processes of capacitation, the ability to undergo a zona pellucida-evoked acrosome reaction, develops more slowly in sperm from Pkdrej(tm/tm) animals than in sperm from wild-type males. In contrast, a second component process of capacitation, the transition to hyperactivated flagellar motility, develops with a similar time course in both genotypes. These two behavioral consequences of capacitation, exocytotic competence and altered motility, are therefore differentially regulated. These data suggest that Pkdrej controls the timing of fertilization in vivo through effects on sperm transport and exocytotic competence and is a factor in postcopulatory sexual selection.
Keith A Sutton; Melissa K Jungnickel; Harvey M Florman
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2008-06-18
Journal Detail:
Title:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  105     ISSN:  1091-6490     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-06-25     Completed Date:  2008-08-19     Revised Date:  2014-09-17    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  8661-6     Citation Subset:  IM    
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MeSH Terms
Acrosome / metabolism
Mating Preference, Animal
Mice, Transgenic
Receptors, Cell Surface / classification,  genetics,  physiology*
Reproduction / genetics
Sperm Capacitation* / genetics
Sperm Motility
TRPP Cation Channels / classification
Grant Support
Reg. No./Substance:
0/Pkdrej protein, mouse; 0/Receptors, Cell Surface; 0/TRPP Cation Channels; 0/polycystic kidney disease 1 protein

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