Czech J. Anim. Sci., 2014, 59(5):227-237 | DOI: 10.17221/7403-CJAS

Associations of fifty single nucleotide polymorphisms within candidate genes with meatness in pigsOriginal Paper

A. Borowska¹, T. Szwaczkowski¹, M. Koćwin-Podsiadła², S. Kamiński³, A. Ruść³, E. Krzęcio-Nieczyporuk²

¹ Department of Genetics and Animal Breeding, Poznan University of Life Sciences, Poznań, Poland

² Department of Pig Breeding and Meat Science, Siedlce University of Natural Sciences and Humanities, Siedlce, Poland

³ Department of Animal Genetics, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland

The objective of the paper was to classify 50 SNPs (from 17 chromosomes) according to their contribution to the meatness of 293 boars of two breeds (Polish Landrace and Polish Large White) using entropy analysis and standard association analysis. The collected data were classified into two groups (according to the official EUROP procedure) and used for entropy analysis. Associations of single genotypes versus their groups (located at single chromosomes) with the trait studied were estimated by the use of the Generalized Linear Model (GLM). Thus meatness was included as a continuous variable. The most important contributions have been estimated by both approaches for the following SNPs: SULT1A1:g.76G>A (SSC3), PKLR:g.384C>T (SSC4), MYOD1:c.566G>C (SSC2), TNNT3:g.153T>C (SSC2), GAA:g.38T>C (SSC12), LDLRR1:c.459A>G (SSC8), MYF6:g.255T>C (SSC5), CAS:g.499A>C (SSC2), PPARGC:c.678T>A (SSC15). Moreover, interactions among some studied loci are suggested, especially for the loci at chromosome 1.

Keywords: entropy analysis; pork; meat content; SNP

Published: May 31, 2014  Show citation