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.: Home > Animal Science Papers and Reports > 2015 > Volume 33 Number 2 > Sławomir Sadkowski 1 , Marta Molińska-Glura 2 , Krzysztof Moliński 3 , Dawid Szczepankiewicz 4 , Marek Świtoński 1 , Maciej Szydłowski 1

A well-known mutation in RYR1 alters distribution of adipose tissue in gilts

Sławomir Sadkowski 1 , Marta Molińska-Glura 2 , Krzysztof Moliński 3 , Dawid Szczepankiewicz 4 , Marek Świtoński 1 , Maciej Szydłowski 1
1 Department of Genetics and Animal Breeding, Poznan University of Life Sciences, Wołyńska 33, 60-637 Poznań, Poland 2 Department of Computer Science and Statistics, Poznan University of Medical Sciences, Dąbrowskiego 79, 60-529 Poznań, Poland 3 Department of Mathematical and Statistical Methods, Poznan University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland 4 Department of Animal Physiology and Biochemistry, Poznan University of Life Sciences, Wołyńska 35, 60-637 Poznań, Poland
Abstract :
The swine
RYR1
(
ryanodine receptor
1
) gene is a major gene for meatiness, but its effect on the
fatness and location of fat deposition is less known. A known mutation in this gene is responsible for
a drastic deterioration of meat quality. We provide evidence that the mutation (
c.1843
T
) alters fat
distribution between back fat and abdominal fat, which are of different value in meat processing.
The study included 486 gilts representing the Polish Landrace, PL (
n
=242) and synthetic line L990
(
n
=244). All gilts were classified into 3 clusters according to their predisposition to fat distribution
between visceral and subcutaneous tissues. We found a relationship between this classification and
RYR1. The mutation c.1843C>T changed the distribution of body fat between these tissues in PL and
L990 (
P
=0.0384), and in L990 separately (
P
=0.0277). No evidence for such an effect was observed
when PL was analyzed separately. Compared to the
CC
homozygotes the
T
allele was associated with
a lower abdominal fat deposition and heterozygous gilts tended to allocate adipose tissue in back fat;
however, the effect on fat distribution was independent of general fatness of a pig.
Keywords :
fat distribution, obesity, pig, SNP, RYR1

Date Deposited : 24 Mar 2016 10:36

Last Modified : 24 Mar 2016 10:36

Official URL: http://www.ighz.edu.pl/files/objects/7556/66/str_147-154.pdf

Volume 33, Number 2, March 2015

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