Linkage and QTL mapping for Sus scrofa chromosome 7

Yue, G., Stratil, A., Cepica, S., Schroffel, J., Schroffelova, D., Fontanesi, L., Cagnazzo, M., Moser, G., Bartenschlager, H., Reiner, G. and Geldermann, H. (2003) Linkage and QTL mapping for Sus scrofa chromosome 7. Journal of Animal Breeding and Genetics, 120 Suppl 1: 56-65. doi:10.1046/j.0931-2668.2003.00424.x


Author Yue, G.
Stratil, A.
Cepica, S.
Schroffel, J.
Schroffelova, D.
Fontanesi, L.
Cagnazzo, M.
Moser, G.
Bartenschlager, H.
Reiner, G.
Geldermann, H.
Title Linkage and QTL mapping for Sus scrofa chromosome 7
Journal name Journal of Animal Breeding and Genetics   Check publisher's open access policy
ISSN 0931-2668
1439-0388
Publication date 2003-12-01
Sub-type Article (original research)
DOI 10.1046/j.0931-2668.2003.00424.x
Volume 120
Issue Suppl 1
Start page 56
End page 65
Total pages 10
Place of publication Berlin, Germany
Publisher Wiley-Blackwell
Language eng
Formatted abstract
Linkage maps of Sus scrofa chromosome 7 (SSC7) for three informative F 2 families, based on Wild Boar (W), Meishan (M) and Pietrain (P) crosses, were constructed using 16 marker loci. Maps were consistent for the families, except the order of the markers PI2-PO1A-S0212 in the W x M family which was inverted in the M x P and W x P families. Important quantitative trait loci (QTLs) were localized in the region of the SLA complex in the M x P and W x M families. These explained up to 16% of F 2 phenotypic variance for body conformation, fat deposition and muscling. In the W x P family, minor QTLs were mapped outside the SLA region. The highly significant QTL alleles were mainly additive (a > d). The Meishan alleles for QTL located in the SLA region were associated with higher head weights and carcass lengths, but with lower carcass fat contents than those from Wild Boar and Pietrain. The cryptic Meishan QTL allele, which reduces carcass fat, provides one of the first examples of transgressive segregation in animals and emphasizes that useful genetic variation can be hidden in the genetic background of a breed.
Keyword Quantitative Trait Loci
Affecting Carcass Composition
Influencing Economic Traits
Divergent Swine Cross
Genome Scan Analysis
Protease Inhibitors
Body-Composition
Porcine Genome
F-2 Families
Meat Quality
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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