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Effects and Bioinformatic Analysis of Astragalus Polysaccharide on miR-16 Expression in Different Tissue of Breeder Cocks

  • REN Xiaochun ,
  • LI Yulong ,
  • WU Shengru ,
  • LEI Xinyu ,
  • GUO Wei ,
  • DANG Yanna ,
  • GONG Yuesheng ,
  • YANG Xiaojun
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  • College of Animal Science and Technology, Northwest A & F University, Yanling 712100, China

Received date: 2015-12-22

  Online published: 2016-06-27

Abstract

This experiment was conducted to investigate the effects of Astragalus polysaccharides (APS) on miR-16 expression in different tissues of breeder cocks, combining with the functional enrichment analysis of GO and KEGG pathway of miR-16 predicted targets, and to explore the potential regulation role of APS in different tissues via miR-16. A total of 64 one-day-old Cobb 500 breeder cocks were randomly divided into control group and APS group with 4 replicates per group and 8 breeder cocks per replicate. Cocks in the control group were fed a corn-soybean meal based diet, and the others in APS group were fed the basal diet supplemented with 10 g/kg APS. The experiment lasted for 40 weeks. The results showed as follows: 1) compared with the control group, dietary supplemented with APS improved the semen volume and number of effective sperm, decreased the percentage of abnormal sperm (P>0.05). 2) miR-16 differentially expressed in different tissues; APS ssignificantly increased the miR-16 expression in liver, spleen, duodenum mucosa and ileum mucosa (P<0.05 or P<0.01), and down-regulated miR-16 expression in testis (P<0.05). 3) GO enrichment analysis of miR-16 predicted that targets were showed to be enriched for the metabolic functions in transmembrane transport, ubiquitin-dependent protein catabolic process, intracellular protein transport, glycolytic process (P<0.05 or P<0.01). KEGG pathway showed that the target genes were enriched in focal adhesion, insulin signaling pathway, glycolysis/gluconeogenesis associated with cell proliferation, differentiation and metabolism (P<0.05). And the target genes were also enriched in toll-like receptors signaling pathways and natural killer cell mediated cytotoxicity related to immune pathways. In conclusion, APS up-regulates the expression of miR-16 in liver, spleen, duodenum mucosa, ileum mucosa, while down-regulates that in testis of breeder cocks. miR-16 predicted targets collect with metabolism and immune regulation, it showes that APS regulated the miR-16 expression on different tissues of breeder cocks to affect the metabolism and immune regulation functions.

Cite this article

REN Xiaochun , LI Yulong , WU Shengru , LEI Xinyu , GUO Wei , DANG Yanna , GONG Yuesheng , YANG Xiaojun . Effects and Bioinformatic Analysis of Astragalus Polysaccharide on miR-16 Expression in Different Tissue of Breeder Cocks[J]. Chinese Journal of Animal Nutrition, 2016 , 28(6) : 1887 -1898 . DOI: 10.3969/j.issn.1006-267x.2016.06.032

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