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Functional Analysis of Genes Involved in Glycerolipids Biosynthesis (GPAT1 and GPAT2) in Pigs.


ABSTRACT: Glycerol-3-phosphate acyltransferase (GPAT) enzymes catalyze the first step in triacylglycerol (TAG) synthesis. Genes that belong to the GPAT family are potential genetic markers for intramuscular fat content (IMF) content and thus meat quality. The objective of this study was to analyze the expression of GPAT1 and GPAT2 genes in musculus longissimus lumborum, liver and subcutaneous fat of various breeds of pigs. Furthermore, correlations between the genes' expression abundance and utility traits, meat quality and meat texture parameters of pork were determined. The results obtained showed significant differences in the mRNA level of GPAT1 between analyzed tissues and breeds. The highest expression of GPAT1 gene was observed in liver tissue (p ? 0.01). Furthermore, significantly higher GPAT1 transcript level in the m. longissimus lumborum was observed for duroc in comparison to other analyzed breeds (p ? 0.05). Expression of the GPAT2 gene was shown only in the liver tissues, however statistically significant differences between the analyzed breeds were not observed. Correlation analysis confirmed the highest association between GPAT2 gene expression level in liver and cohesiveness and resilience traits of m. longissimus lumborum (p ? 0.01).

SUBMITTER: Mitka I 

PROVIDER: S-EPMC6617006 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature

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Functional Analysis of Genes Involved in Glycerolipids Biosynthesis (<i>GPAT1</i> and <i>GPAT2</i>) in Pigs.

Mitka Ilona I   Ropka-Molik Katarzyna K   Tyra Mirosław M  

Animals : an open access journal from MDPI 20190531 6


Glycerol-3-phosphate acyltransferase <i>(</i>GPAT) enzymes catalyze the first step in triacylglycerol (TAG) synthesis. Genes that belong to the <i>GPAT</i> family are potential genetic markers for intramuscular fat content (IMF) content and thus meat quality. The objective of this study was to analyze the expression of <i>GPAT1</i> and <i>GPAT2</i> genes in musculus longissimus lumborum, liver and subcutaneous fat of various breeds of pigs. Furthermore, correlations between the genes' expression  ...[more]

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