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A species-specific miRNA participates in biomineralization by targeting CDS regions of Prisilkin-39 and ACCBP in Pinctada fucata.
- Source :
-
Scientific Reports . 6/2/2020, Vol. 10 Issue 1, p1-12. 12p. - Publication Year :
- 2020
-
Abstract
- Biomineralization is a sophisticated biological process precisely regulated by multiple molecules and pathways. Accumulating miRNAs have been identified in invertebrates but their functions in biomineralization are poorly studied. Here, an oyster species-specific miRNA, novel_miR_1 was found to regulate biomineralization in Pinctada fucata. Target prediction showed that novel_miR_1 could target Prisilkin-39 and ACCBP by binding to their coding sequences (CDS). Tissue distribution analysis revealed that the expression level of novel_miR_1 was highest in the mantle, which was a key tissue participating in biomineralization. Gain-of-function assay in vivo showed that biomineralization-related genes including Prisilkin-39 and ACCBP were down-regulated and shell inner surfaces of both prismatic and nacreous layer were disrupted after the over-expression of novel_miR_1, indicating its dual roles in biomineralization. Furthermore, the shell notching results indicated that novel_miR_1 was involved in shell regeneration. Dual-luciferase reporter assay in vitro demonstrated that novel_miR_1 directly suppressed Prisilkin-39 and ACCBP genes by binding to the CDS regions. Taken together, these results suggest that novel_miR_1 is a direct negative regulator to Prisilkin-39 and ACCBP and plays an indispensable and important role in biomineralization in both prismatic and nacreous layer of P. fucata. [ABSTRACT FROM AUTHOR]
- Subjects :
- *BIOMINERALIZATION
*INVERTEBRATES
*PINCTADA
*REGENERATION (Biology)
*LUCIFERASES
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Volume :
- 10
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Scientific Reports
- Publication Type :
- Academic Journal
- Accession number :
- 143543252
- Full Text :
- https://doi.org/10.1038/s41598-020-65708-4