RT Journal Article SR Electronic T1 A high-resolution mRNA expression time course of embryonic development in zebrafish JF bioRxiv FD Cold Spring Harbor Laboratory SP 107631 DO 10.1101/107631 A1 Richard J. White A1 John E. Collins A1 Ian M. Sealy A1 Neha Wali A1 Christopher M. Dooley A1 Zsofia Digby A1 Derek L. Stemple A1 Daniel N. Murphy A1 Thibaut Hourlier A1 Anja Füllgrabe A1 Matthew P. Davis A1 Anton J. Enright A1 Elisabeth M. Busch-Nentwich YR 2017 UL http://biorxiv.org/content/early/2017/02/20/107631.abstract AB We have produced an mRNA expression time course of zebrafish development across 18 time points from 1-cell to 5 days post-fertilisation sampling individual and pools of embryos. Using poly(A) pulldown stranded RNA-seq and a 3′ end transcript counting method we characterise the temporal expression profiles of 23,642 genes. We identify temporal and functional transcript co-variance that associates 5,024 unnamed genes with distinct developmental time points. Specifically, a class of over 100 previously uncharacterised zinc finger domain containing genes, located on the long arm of chromosome 4, is expressed in a sharp peak during zygotic genome activation. The data reveal complex and widespread differential use of exons and previously unidentified 3′ ends across development, new primary microRNA transcripts and temporal divergence of gene paralogues generated in the teleost genome duplication. To make this dataset a useful baseline reference, the data are accessible to browse and download at Expression Atlas and Ensembl.