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Joint effect of 21 marker loci and effect of realized inbreeding on growth in pigs

Published online by Cambridge University Press:  02 September 2010

K. Christensen ,
M. Fredholm ,
A. K. Winterø ,
J. N. Jørgensen  and
S. Andersen
K. Christensen
Affiliation:
Department of Animal Science and Animal Health, Division of Animal Genetics, The Royal Veterinary and Agricultural University, Bülowsvej 13, 1870 Frederiksberg C, Denmark
M. Fredholm
Affiliation:
Department of Animal Science and Animal Health, Division of Animal Genetics, The Royal Veterinary and Agricultural University, Bülowsvej 13, 1870 Frederiksberg C, Denmark
A. K. Winterø
Affiliation:
Department of Animal Science and Animal Health, Division of Animal Genetics, The Royal Veterinary and Agricultural University, Bülowsvej 13, 1870 Frederiksberg C, Denmark
J. N. Jørgensen
Affiliation:
Department of Animal Science and Animal Health, Division of Animal Genetics, The Royal Veterinary and Agricultural University, Bülowsvej 13, 1870 Frederiksberg C, Denmark
S. Andersen
Affiliation:
National Committee for Pig Breeding, Health and Production, Denmark
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Abstract

Four litters produced by father-daughter matings (back crosses) resulting in 35 animals with a theoretical inbreeding coefficient of 25% were typed with 21 independent informative markers. The differences between the two founder animals were estimated, based on the marker information, and it was found that the founder boar had higher genetic potential for proportion of lean meat and lower genetic potential for groivth than the founder sow. The proportion of the genome of each offspring which was identical by descent was investigated. On the basis of these markers the realized inbreeding was found to vary between 7 and 47%. The linear decrease in weight at days 1, 26 and 136, average daily gain and proportion of lean meat regressed on the realized inbreeding were estimated to 0·6 kg, 2·4 kg, 18 kg, 95 g/day and 15 g/kg, respectively. For weight at day 88 a corresponding linear increase of 11 kg was observed. The joint effect of founder differences and realized inbreeding were as expected negative and statistically significant for all growth traits.

Keywords

gene expressiongrowthhomozygosityinbreedingpigs
Type
Research Article
Information
Animal Science , Volume 62 , Issue 3 , June 1996 , pp. 541 - 546
Copyright
Copyright © British Society of Animal Science 1996

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References

Archibald, A. L., Haley, C. S., Brown, J. F., Couperwhite, S., McQueen, H. A. et al. 1995. The PiGMaP consortium linkage map of the pig (Sus scrofa). Mammalian Genome 6:157–175.Google Scholar
Christensen, K., Jensen, P. and Jergensen, J. N. 1994. A note on effect of inbreeding on production traits in pigs. Animal Production 58:298–300.Google Scholar
Ellegren, H., Chowdhary, B. P., Johansson, M., Marklund, L., Fredholm, M., Gustavsson, I. and Andersson, L. 1994. A primary linkage map of the porcine genome reveals a low rate of genetic recombination. Genetics 137:1089–1100.Google Scholar
Falconer, D. S. 1989. Introduction to quantitative genetics. Longman Scientific and Technical, London.Google Scholar
Fredholm, M., Wintero, A. K., Christensen, K., Kristensen, B., Nielsen, P. B., Davies, W. and Archibald, A. 1993. Characterization of 24 porcine (dA-dC)n-(dT-dG)n microsatellites: genotyping of unrelated animals from four breeds and linkage studies. Mammalian Genome 4:187–192.Google Scholar
Goddard, M. E. 1992. A mixed model for analyses of data on multiple genetic markers. Theoretical and Applied Genetics 83:878–886.Google Scholar
Hanson, W. D. 1959. Early generation analyses of lengths of heterozygous chromosome segments around a locus held heterozygous with back crossing or selfing. Genetics 44:833–837.Google Scholar
Nejati-Javaremi, A., Gibson, J. P. and Smith, C. 1994. Gain in accuracy of evaluation by including total allelic identity. Proceedings of the fifth world congress of genetics applied to livestock production, Guelph, vol. 19, pp.171–174.Google Scholar
Rohrer, G. A., Alexander, L. J., Keele, J. W., Smith, T. P. and Beattie, C. W. 1994. A microsatellite linkage map of the porcine genome. Genetics 136:231–245.Google Scholar
Serikawa, T., Kuramoto, T., Hilbert, P., Mori, M., Yamada, J., Dubay, C. J., Lindpainter, K., Ganten, D., Guenet, J. L., Lathrop, G. M. and Beckmann, J. S. 1992. Rat gene mapping using PCR-analyzed microsatellites. Genetics 131:701–721.Google Scholar
Stam, P. and Zeven, A. C. 1981. The theoretical proportion of the donor genome in near-isogenic lines of self-fertilizers bred by backcrossing. Euphytica 30:227–238.Google Scholar
Weissenbach, J., Gyapay, G., Dib, C., Vignal, A., Morissette, J., Millasseau, P., Vaysseix, G. and Lathrop, M. 1992. A second-generation linkage map of the human genome. Nature 359:794–801.Google Scholar
Wintera, A. K., Fredholm, M. and Thomsen, P. D. 1992. Variable (dG-dT)n-(dC-dA)n sequences in the porcine genome. Genomics 12:281–288.Google Scholar