MicroRNA Expression in Zebrafish Embryonic Development
Top Cited Papers
- 8 July 2005
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 309 (5732), 310-311
- https://doi.org/10.1126/science.1114519
Abstract
MicroRNAs (miRNAs) are small noncoding RNAs, about 21 nucleotides in length, that can regulate gene expression by base-pairing to partially complementary mRNAs. Regulation by miRNAs can play essential roles in embryonic development. We determined the temporal and spatial expression patterns of 115 conserved vertebrate miRNAs in zebrafish embryos by microarrays and by in situ hybridizations, using locked-nucleic acid–modified oligonucleotide probes. Most miRNAs were expressed in a highly tissue-specific manner during segmentation and later stages, but not early in development, which suggests that their role is not in tissue fate establishment but in differentiation or maintenance of tissue identity.Keywords
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