title: Comparative transcriptome analysis reveals significant differences in MicroRNA expression and their target genes between adipose and muscular tissues in cattle.
abstract: The posttranscriptional gene regulation mediated by microRNAs (miRNAs) plays an important role in various species. However, to date limited miRNAs have been reported between fat and muscle tissues in beef cattle. In this paper, 412 known and 22 novel miRNAs in backfat as well as 334 known and 10 novel miRNAs in longissimus thoracis were identified in the Chinese Qinchuan beef cattle. Bta-miR-199a-3p, -154c, -320a and -432 were expressed at higher levels in backfat tissue, while bta-miR-1, -133a, -206, and -378 were also significantly enriched in muscle tissue. Functional analysis revealed that fat-enriched miRNAs targeted PRKAA1/2, PPARA and PPARG genes to modulate lipid and fatty acid metabolism, and muscle-enriched miRNAs targeted CSRP3 gene to present function involved in skeletal and muscular system development. The results obtained may help in the design of new selection strategies to improve beef quality.
authors.affiliation: College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi, China.
authors.forename: Jiajie
authors.initials: J
authors.lastname: Sun
authors.affiliation: College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi, China.
authors.forename: Bowen
authors.initials: B
authors.lastname: Zhang
authors.affiliation: College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi, China.
authors.forename: Xianyong
authors.initials: X
authors.lastname: Lan
authors.affiliation: Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, Jiangsu, China.
authors.forename: Chunlei
authors.initials: C
authors.lastname: Zhang
authors.affiliation: College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi, China.
authors.forename: Chuzhao
authors.initials: C
authors.lastname: Lei
authors.affiliation: College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Chen
mesh_terms: D000273:Adipose Tissue / Q000378:metabolism*; D000818:Animals; D002417:Cattle; D020869:Gene Expression Profiling / Q000379:methods*; D005786:Gene Expression Regulation; D053263:Gene Regulatory Networks; D059014:High-Throughput Nucleotide Sequencing / Q000379:methods*; D035683:MicroRNAs / Q000235:genetics* / Q000378:metabolism; D009132:Muscles / Q000378:metabolism*; D017423:Sequence Analysis, RNA
chemical_list: D035683:MicroRNAs