Abstract:
:CircRNA is a specific type of non-coding RNA that has been shown to have an important role in mammary gland (MG) activity, but no study of MG circRNA activity in sheep so far. In this study, the expression profile of circRNAs was investigated using RNA-Seq in MG parenchyma at peak lactation from Small-Tailed Han sheep and Gansu Alpine Merino sheep with phenotypic differences in milk yield and components. A total of 4, 906 circRNAs were found and 33 of these were differentially expressed between breeds. GO and KEGG results showed that the parental genes of differentially expressed circRNAs were mainly enriched in heterocyclic compound binding, kinase activity, adherens junction, the TGF-β signaling pathway, and the MAPK signaling pathway. This study provides an overview of circRNA expression in the ovine MG and the interaction between some key circRNAs and their target miRNAs. It improves our knowledge of the role of circRNA in sheep milk synthesis.
journal_name
Genomicsjournal_title
Genomicsauthors
Hao Z,Zhou H,Hickford JGH,Gong H,Wang J,Hu J,Liu X,Li S,Zhao M,Luo Ydoi
10.1016/j.ygeno.2019.12.014subject
Has Abstractpub_date
2020-05-01 00:00:00pages
2186-2193issue
3eissn
0888-7543issn
1089-8646pii
S0888-7543(19)30720-7journal_volume
112pub_type
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