Details

Autor(en) / Beteiligte

• Do, Duy N.
• Dudemaine, Pier-Luc
• Fomenky, Bridget E.
• Ibeagha-Awemu, Eveline M.

Titel

Integration of miRNA weighted gene co-expression network and miRNA-mRNA co-expression analyses reveals potential regulatory functions of miRNAs in calf rumen development

Ist Teil von

• Genomics (San Diego, Calif.), 2019-07, Vol.111 (4), p.849-859

Ort / Verlag

United States: Elsevier Inc

Erscheinungsjahr

2019

Quelle

MEDLINE

Beschreibungen/Notizen

• This study aimed to explore the roles of microRNAs (miRNAs) in calf rumen development during early life. Rumen tissues were collected from 16 calves (8 at pre-weaning and 8 at post-weaning) for miRNA-sequencing, differential expression (DE), miRNA weighted gene co-expression network (WGCNA) and miRNA-mRNA co-expression analyses. 295 miRNAs were identified. Bta-miR-143, miR-26a, miR-145 and miR-27b were the most abundantly expressed. 122 miRNAs were significantly DE between the pre- and post-weaning periods and the most up- and down-regulated miRNAs were bta-miR-29b and bta-miR-493, respectively. Enrichment analyses of the target genes of DE miRNAs revealed important roles for miRNA in rumen developmental processes, immune system development, protein digestion and processes related to the extracellular matrix. WGCNA indicated that bta-miR-145 and bta-miR-199a-3p are important hub miRNAs in the regulation of these processes. Therefore, bta-miR-143, miR-29b, miR-145, miR-493, miR-26a and miR-199 family members might be key regulators of calf rumen development during early life. •260 known and 35 novel miRNAs were identified in rumen of 16 calves at the pre- and post-weaning periods.•Most abundant miRNAs (bta-miR-143, miR-26a, miR-145 and 27b) contributed to the regulation of metabolic and development processes.•122 miRNAs were significantly differentially expressed between the pre- and post-weaning periods•Roles of differentially expressed miRNAs in rumen developmental processes, immune system development, protein digestion and processes related to the extracellular matrix.•Bta-miR-145 and bta-miR-199a-3p are important hub miRNAs in interaction networks, while miR-143, miR-29b, miR-145, miR-493, miR-26a and miR-199 family are key regulators of calf rumen development.