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Genome-Wide Differential Expression Profiling of Ovarian circRNAs Associated With Litter Size in Pigs.


ABSTRACT: Circular RNAs (circRNAs) have been emerging as an important regulator in mammalian reproduction via acting as miRNA sponges. However, the circRNAs in porcine ovaries related with litter size remains largely unknown. In this study, porcine ovaries with smaller or larger litter size (LLS) were subjected to high-throughput RNA sequencing. In total, 38,722 circRNAs were identified, of which 1,291 circRNAs were commonly expressed in all samples. There were 56 circRNAs significantly down-regulated and 54 circRNAs up-regulated in LLS pig (|log2 (fold change) | > 1, FDR < 0.05). Bioinformatics predicted that most of circRNAs harbored miRNA binding sites, and the expression patterns of circRNAs and their putative binding miRNAs were validated by qPCR. Moreover, the expression of circ-TCP11/miR-183 was significantly reversely correlated and their direct interaction was confirmed by dual-luciferase assay. Our study indicates that circRNAs may play potential effects on modulating porcine litter size.

SUBMITTER: Xu G 

PROVIDER: S-EPMC6873881 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Genome-Wide Differential Expression Profiling of Ovarian circRNAs Associated With Litter Size in Pigs.

Xu Gaoxiao G   Zhang Huifang H   Li Xiao X   Hu Jianhong J   Yang Gongshe G   Sun Shiduo S  

Frontiers in genetics 20191115


Circular RNAs (circRNAs) have been emerging as an important regulator in mammalian reproduction <i>via</i> acting as miRNA sponges. However, the circRNAs in porcine ovaries related with litter size remains largely unknown. In this study, porcine ovaries with smaller or larger litter size (LLS) were subjected to high-throughput RNA sequencing. In total, 38,722 circRNAs were identified, of which 1,291 circRNAs were commonly expressed in all samples. There were 56 circRNAs significantly down-regula  ...[more]

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