QTL alleles on chromosome 7 from fatty Meishan pigs reduce fat deposition

Yue, G. H., Beeckmann, P., Moser, G., Muller, E., Bartenschlager, H., Cepica, S., Schroffel, J., Stratil, A. and Geldermann, H. (2003) QTL alleles on chromosome 7 from fatty Meishan pigs reduce fat deposition. Science in China Series C-Life Sciences, 46 1: 10-17. doi:10.1007/BF03182680

Author Yue, G. H.
Beeckmann, P.
Moser, G.
Muller, E.
Bartenschlager, H.
Cepica, S.
Schroffel, J.
Stratil, A.
Geldermann, H.
Title QTL alleles on chromosome 7 from fatty Meishan pigs reduce fat deposition
Journal name Science in China Series C-Life Sciences   Check publisher's open access policy
ISSN 1006-9305
Publication date 2003-02
Sub-type Article (original research)
DOI 10.1007/BF03182680
Open Access Status DOI
Volume 46
Issue 1
Start page 10
End page 17
Total pages 8
Place of publication Beijing, China
Publisher Zhongguo Kexue Zazhishe
Language eng
Formatted abstract
For detecting QTL in the whole swine genome, 1068 pigs from three F 2 populations constructed by crossing European Wild boar and Pietrain (W×P), Meishan and Pietrain (M×P), and Wild Boar and Meishan (W×M) were genotyped for genetic markers evenly spaced at approximately 20 cM intervals. A QTL analysis was performed using a least-squares method. Here the results of the QTL analysis on the porcine chromosome 7 are presented. QTL for carcass composition (e.g. head weight, carcass length, backfat depth, abdominal fat and bacon meat) were mapped in the chromosomal region CYPA/CYPD-TNFB-S0102 in M×P and W×M, but not in W×P. The QTL explained 5.3%-27.2% of the F 2 phenotypic variance in the two F 2 populations. Most traits affected by the mapped QTL were related to carcass fatness. The mode of gene action of QTL was additive. Surprisingly, in contrast to the parental phenotype, the QTL alleles from fatty Meishan were associated with thinner backfat than Pietrain and Wild Boar alleles, suggesting that the genome of the fatty Meishan pig contains genes which can reduce fat content of carcass substantially.
Keyword genomics
Quantitative-Trait Loci
Meat Quality
Sus Scrofa
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: UQ Diamantina Institute Publications
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