Manuscript Abstract

EXPRESSION ANALYSIS OF MIR-1 AND MIR-133 IN THREE DEVELOPMENTAL STAGES OF GOAT SKELETAL MUSCLE
Yinghui Ling, Lijuan Wang, JianpingDing, Lisheng Wang, Yunhai Zhang, Xiaorong Zhang

Yinghui Ling1,2*, Lijuan Wang 1,2*, JianpingDing1,2#, Lisheng Wang1,2, Yunhai Zhang1,2 and Xiaorong Zhang 1, 2

1. Anhui Agricultural University of Animal Science and Technology, Hefei, Anhui, China;
2. Local Animal Genetic Resources Conservation and Biobreeding sLaboratory of Anhui province, Anhui Hefei, China
*These authors equally contributed to this paper. Both of them consider as first author.

Corresponding Author: dingjp1964@126.com
Page Number(s): 146-152
Published Online First: February 01, 2015
Publication Date: February 01, 2015
ABSTRACT

MiR-1 and miR-133 are evolutionary conserved in most animal species, from drosophila to human, and have been confirmed to take an important role for skeletal muscle development in mice and pigs. In this study, the function of miR-1 and miR-133 was detected through analysis the expression pattern of the two miRNAs and their predicted target genes in three developmental stages of goat skeletal muscle. HDAC4 and SRF, which were the target genes of miR-1 and miR-133 family, respectively, were predicted using MiRanda and Target Scan 6.2 software. Then the expression profiles of miR-1, miR-133, HDAC4 and SRF in 10 normal goat tissues (heart, liver, spleen, lung, kidney, small intestine, fat, longissimusdorsi muscles, pectoral muscles and crural muscles) from three stages (newborn, three months, eighteen months) of Anhui White goat were characterized by real-time RT-PCR. The expression of miR-1 and miR-133 were varied among different tissues, with most abundant in heart and skeletal muscles (longissimusdori muscles, pectoral muscles and crural muscles) in Anhui white goats, while there were the least expression in other tissues. However, the expression levels of HDAC4 and SRF were on the contrary. The results suggested that miR-1 and miR-133 may enhance myoblast proliferation and differentiation by repressing their predicated target genes, thus affecting skeletal muscle growth and development. This study will be a useful reference for further studies about miR-1 and miR-133 for their role in the regulation in animal growth and development processes.

Keywords: miR-1 and miR-133, goat, target gene, growth and development, expression profiles
Open Access: This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( https://creativecommons.org/licenses/by/4.0/).


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