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Genome-wide RNA tomography in the zebrafish embryo

Item Type:Article
Title:Genome-wide RNA tomography in the zebrafish embryo
Creators Name:Junker, J.P. and Noël, E.S. and Guryev, V. and Peterson, K.A. and Shah, G. and Huisken, J. and McMahon, A.P. and Berezikov, E. and Bakkers, J. and van Oudenaarden, A.
Abstract:Advancing our understanding of embryonic development is heavily dependent on identification of novel pathways or regulators. Although genome-wide techniques such as RNA sequencing are ideally suited for discovering novel candidate genes, they are unable to yield spatially resolved information in embryos or tissues. Microscopy-based approaches, using in situ hybridization, for example, can provide spatial information about gene expression, but are limited to analyzing one or a few genes at a time. Here, we present a method where we combine traditional histological techniques with low-input RNA sequencing and mathematical image reconstruction to generate a high-resolution genome-wide 3D atlas of gene expression in the zebrafish embryo at three developmental stages. Importantly, our technique enables searching for genes that are expressed in specific spatial patterns without manual image annotation. We envision broad applicability of RNA tomography as an accurate and sensitive approach for spatially resolved transcriptomics in whole embryos and dissected organs.
Keywords:Gene Expression Profiling, Nonmammalian Embryo, RNA Sequence Analysis, Three-Dimensional Imaging, Tomography, Animals, Zebrafish
Publisher:Cell Press
Page Range:662-675
Date:23 October 2014
Official Publication:https://doi.org/10.1016/j.cell.2014.09.038
PubMed:View item in PubMed

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