|
|
||||||||
Journal of Animal Science, Vol 76, Issue 3 694-700, Copyright © 1998 by American Society of Animal Science
JOURNAL ARTICLE |
L. Andersson-Eklund, L. Marklund, K. Lundstrom, C. S. Haley, K. Andersson, I. Hansson, M. Moller and L. Andersson
Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala.
An intercross between wild boar and a domestic Large White pig population was used to map quantitative trait loci (QTL) for body proportions, weight of internal organs, carcass composition, and meat quality. The results concerning growth traits and fat deposition traits have been reported elsewhere. In the present study, all 200 F2 animals, their parents, and their grandparents were genotyped for 236 markers. The marker genotypes were used to calculate the additive and dominance coefficients at fixed positions in the genome of each F2 animal, and the trait values were regressed onto these coefficients in intervals of 1 cM. In addition, the effect of proportion of wild boar alleles was tested for each chromosome. Significant QTL effects were found for percentage lean meat and percentage lean meat plus bone in various cuts, proportion of bone in relation to lean meat in ham, muscle area, and carcass length. The significant QTL were located on chromosomes 2, 3, 4, and 8. Each QTL explained 9 to 16% of the residual variance of the traits. Gene action for most QTL was largely additive. For meat quality traits, there were no QTL that reached the significance threshold. However, the average proportion of wild boar alleles across the genome had highly significant effects on reflectance and drip loss. The results show that there are several chromosome regions with a considerable effect on carcass traits in pigs.
This article has been cited by other articles:
![]() |
L. Ronnegard, F. Besnier, and O. Carlborg An Improved Method for Quantitative Trait Loci Detection and Identification of Within-Line Segregation in F2 Intercross Designs Genetics, April 1, 2008; 178(4): 2315 - 2326. [Abstract] [Full Text] [PDF] |
||||
![]() |
H. J. van Wijk, B. Dibbits, E. E. Baron, A. D. Brings, B. Harlizius, M. A. M. Groenen, E. F. Knol, and H. Bovenhuis Identification of quantitative trait loci for carcass composition and pork quality traits in a commercial finishing cross J Anim Sci, April 1, 2006; 84(4): 789 - 799. [Abstract] [Full Text] [PDF] |
||||
![]() |
O. Vidal, J. L. Noguera, M. Amills, L. Varona, M. Gil, N. Jimenez, G. Davalos, J. M. Folch, and A. Sanchez Identification of carcass and meat quality quantitative trait loci in a Landrace pig population selected for growth and leanness J Anim Sci, February 1, 2005; 83(2): 293 - 300. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Nii, T. Hayashi, S. Mikawa, F. Tani, A. Niki, N. Mori, Y. Uchida, N. Fujishima-Kanaya, M. Komatsu, and T. Awata Quantitative trait loci mapping for meat quality and muscle fiber traits in a Japanese wild boar x Large White intercross J Anim Sci, February 1, 2005; 83(2): 308 - 315. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Lionikas, D. A. Blizard, D. J. Vandenbergh, M. G. Glover, J. T. Stout, G. P. Vogler, G. E. McClearn, and L. Larsson Genetic architecture of fast- and slow-twitch skeletal muscle weight in 200-day-old mice of the C57BL/6J and DBA/2J lineage Physiol Genomics, December 16, 2003; 16(1): 141 - 152. [Abstract] [Full Text] [PDF] |
||||
![]() |
G. J. Evans, E. Giuffra, A. Sanchez, S. Kerje, G. Davalos, O. Vidal, S. Illan, J. L. Noguera, L. Varona, I. Velander, et al. Identification of Quantitative Trait Loci for Production Traits in Commercial Pig Populations Genetics, June 1, 2003; 164(2): 621 - 627. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. GEORGES and L. ANDERSSON Positional Identification of Structural and Regulatory Quantitative Trait Nucleotides in Domestic Animal Species Cold Spring Harb Symp Quant Biol, January 1, 2003; 68(0): 179 - 188. [Abstract] [PDF] |
||||
![]() |
O. Carlborg, L. Andersson-Eklund, and L. Andersson Parallel Computing in Interval Mapping of Quantitative Trait Loci J. Hered., September 1, 2001; 92(5): 449 - 451. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |