NDLI: Indirect effect of IGF2 intron3 g.3072G>A mutation on prolificacy in sows.

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Indirect effect of IGF2 intron3 g.3072G>A mutation on prolificacy in sows.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Stinckens, A. Mathur, P. Janssens, S. Bruggeman, V. Onagbesan, O. M. Schroyen, M. Spincemaille, G. Decuypere, E. Georges, M. Buys, N.
Description	Country affiliation: Belgium Author Affiliation: Stinckens A ( Department of Biosystems, KULeuven, Kasteelpark Arenberg 30, 3001 Heverlee, Belgium.)
Abstract	A QTL located in the paternally expressed insulin-like growth factor 2 (IGF2) gene is known to increase muscle growth and reduce fat deposition in pigs. This makes the QTL in IGF2 a good marker for use in pig breeding programmes. However, care has to be taken as it is postulated that increased leanness and lowered fat deposition may have a negative effect on the prolificacy and longevity of sows. Selection of sire and dam lines for different alleles of the mutation in the paternally imprinted IGF2 gene could actually provide a solution to this problem. Therefore, in this study, the effect of the IGF2 QTL on prolificacy-related traits in sows was investigated. It was found that the paternal IGF2 wild-type allele was associated with higher reproduction performance in the sow. Moreover, it was also examined whether the difference in prolificacy in sows could be a consequence of differential IGF2 expression in the ovarian follicles of the sow or whether it is mainly a secondary effect caused by differences in fatness traits. Therefore, IGF2 expression was measured in follicles of different sizes from sows with different genotypes for the paternal IGF2 allele. It was observed that, however, while the size of the follicles was associated with follicular IGF2 expression level, the IGF2 genotype was not. It could be concluded that the difference in prolificacy of sows with a different paternal IGF2 genotype could be a secondary effect, resulting from differences in fat deposition.
File Format	HTM / HTML
ISSN	02689146
Issue Number	5
Volume Number	41
e-ISSN	13652052
Journal	Animal Genetics
Language	English
Publisher	Wiley-Blackwell
Publisher Date	2010-10-01
Publisher Place	Great Britain (UK)
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Genetics Discipline Zoology Genomic Imprinting Insulin-like Growth Factor Ii Genetics Point Mutation Reproduction Sus Scrofa Animals Body Fat Distribution Veterinary Female Gene Expression Introns Male Ovarian Follicle Chemistry Physiology Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Animal Science and Zoology

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