Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2003 Jun;164(2):621-7.
doi: 10.1093/genetics/164.2.621.

Identification of quantitative trait loci for production traits in commercial pig populations

G J Evans  1 , E Giuffra, A Sanchez, S Kerje, G Davalos, O Vidal, S Illán, J L Noguera, L Varona, I Velander, O I Southwood, D-J de Koning, C S Haley, G S Plastow, L Andersson
Affiliations

Identification of quantitative trait loci for production traits in commercial pig populations

G J Evans et al. Genetics. 2003 Jun.

Abstract

The aim of this study was to investigate methods for detecting QTL in outbred commercial pig populations. Several QTL for back fat and growth rate, previously detected in experimental resource populations, were examined for segregation in 10 different populations. Two hundred trait-by-population-by-chromosome tests were performed, resulting in 20 tests being significant at the 5% level. In addition, 53 QTL tests for 11 meat quality traits were declared significant, using a subset of the populations. These results show that a considerable amount of phenotypic variance observed in these populations can be explained by major alleles segregating at several of the loci described. Thus, despite a relatively strong selection pressure for growth and back fat traits in these populations, these alleles have not yet reached fixation. The approaches used here demonstrate that it is possible to verify segregation of QTL in commercial populations by limited genotyping of a selection of informative animals. Such verified QTL may be directly exploited in marker-assisted selection (MAS) programs in commercial populations and their molecular basis may be revealed by positional candidate cloning.

PubMed Disclaimer

References

    1. J Anim Sci. 1997 Aug;75(8):2047-53 - PubMed
    1. Science. 1994 Mar 25;263(5154):1771-4 - PubMed
    1. Mamm Genome. 2001 Aug;12(8):637-45 - PubMed
    1. Nat Rev Genet. 2001 Feb;2(2):130-8 - PubMed
    1. Genetics. 1995 Feb;139(2):907-20 - PubMed

Publication types

Substances