QTL for microstructural and biophysical muscle properties and body composition in pigs

BMC Genetics
Klaus WimmersSiriluck Ponsuksili

Abstract

The proportion of muscle fibre types and their size affect muscularity as well as functional properties of the musculature and meat quality. We aimed to identify QTL for microstructural muscle properties including muscle fibre size, their numbers and fibre type proportions as well as biophysical parameters of meat quality and traits related to body composition, i.e. pH, conductivity, area of M. longissimus dorsi and lean meat content. A QTL scan was conducted in a porcine experimental population that is based on Duroc and Berlin Miniature Pig. Least square regression interval mapping revealed five significant and 42 suggestive QTL for traits related to muscle fibre composition under the line-cross model as well as eight significant and 40 suggestive QTL under the half-sib model. For traits related to body composition and biophysical parameters of meat quality five and twelve significant plus nine and 22 suggestive QTL were found under the line-cross and half-sib model, respectively. Regions with either significant QTL for muscle fibre traits or significant QTL for meat quality and muscularity or both were detected on SSC1, 2, 3, 4, 5, 13, 14, 15, and 16. QTL for microstructural properties explained a larger proportion of varian...Continue Reading

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Citations

Jan 26, 2008·Mammalian Genome : Official Journal of the International Mammalian Genome Society·Elisabeth JonasKlaus Wimmers
Sep 13, 2013·Mammalian Genome : Official Journal of the International Mammalian Genome Society·Hanna HeidtChristine Große-Brinkhaus
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Dec 6, 2007·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·K WimmersS Ponsuksili
Jun 1, 2010·Meat Science·Andrzej A Sosnicki, Scott Newman
Jan 15, 2017·Physiological Genomics·A M CarrollA Lionikas
Mar 14, 2018·Asian-Australasian Journal of Animal Sciences·Katarzyna Ropka-MolikMaria Oczkowicz
Aug 23, 2008·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·X L XuB Liu
Feb 12, 2009·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·M StachowiakM Switonski
Sep 5, 2019·Asian-Australasian Journal of Animal Sciences·Tianfu GuoLusheng Huang
May 4, 2020·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·Tomasz SzmatołaArtur Gurgul
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May 24, 2008·Journal of Genetics and Genomics = Yi Chuan Xue Bao·Haifang QiuBang Liu
Nov 30, 2010·Journal of Proteomics·Emøke BendixenIngrid Miller

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Methods Mentioned

BETA
dissecting
genotyping

Software Mentioned

QTL express
CRI MAP

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