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Effect of Expressions and SNPs of Candidate Genes on Intramuscular Fat Content in Qinchuan Cattle.


ABSTRACT: Marbling is characterized by the amount and distribution of intramuscular fat (IMF). The AKIRIN2, TTN, EDG1, and MYBPC1 genes are well-known marbling-related genes, which were first identified in Japanese Black beef cattle. The objectives of this study were to analyze the correlation of the expression levels of these genes in the longissimus muscle (LM) with IMF content, and the associations between the single nucleotide polymorphisms (SNPs) in these genes and IMF content in Chinese Qinchuan cattle (n = 350). The association analyses showed that the g.42041062G>T SNP in the EDG1 gene was significantly associated with IMF content in Qinchuan (p < 0.05). Further, the expressions of the EDG1 and MYBPC1 were up-regulated (p < 0.05) in LM of Qinchuan cattle group with low IMF content. Down-regulations of the AKIRIN2 and TTN genes (p < 0.05 and p < 0.01, respectively) were observed in the Qinchuan cattle group with high IMF content. These results suggest possible effects of the expression levels of selected genes on IMF content in the LM, and the g.42041062G>T SNP in the EDG1 gene might be useful as a molecular marker for IMF content in Qinchuan.

SUBMITTER: Li Y 

PROVIDER: S-EPMC7459438 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Effect of Expressions and SNPs of Candidate Genes on Intramuscular Fat Content in Qinchuan Cattle.

Li Yaxing Y   Cheng Gong G   Yamada Takahisa T   Liu Jianfeng J   Zan Linsen L   Tong Bin B  

Animals : an open access journal from MDPI 20200807 8


Marbling is characterized by the amount and distribution of intramuscular fat (IMF). The <i>AKIRIN2</i>, <i>TTN</i>, <i>EDG1</i>, and <i>MYBPC1</i> genes are well-known marbling-related genes, which were first identified in Japanese Black beef cattle. The objectives of this study were to analyze the correlation of the expression levels of these genes in the <i>longissimus</i> muscle (LM) with IMF content, and the associations between the single nucleotide polymorphisms (SNPs) in these genes and  ...[more]

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