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Title: The microRNA-producing enzyme Dicer1 is essential for zebrafish development. Author: Wienholds E, Koudijs MJ, van Eeden FJ, Cuppen E, Plasterk RH. Journal: Nat Genet; 2003 Nov; 35(3):217-8. PubMed ID: 14528306. Abstract: MicroRNAs (miRNAs) are produced by the Dicer1 enzyme; the role of Dicer1 in vertebrate development is unknown. Here we report target-selected inactivation of the dicer1 gene in zebrafish. We observed an initial build-up of miRNA levels, produced by maternal Dicer1, in homozygous dicer1 mutants, but miRNA accumulation stopped after a few days. This resulted in developmental arrest around day 10. These results indicate that miRNA-producing Dicer1 is essential for vertebrate development.[Abstract] [Full Text] [Related] [New Search]