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Curr Opin Plant Biol. 2011 Oct;14(5):601-7. doi: 10.1016/j.pbi.2011.05.007. Epub 2011 Jun 23.

Novel biological insights revealed from cell type-specific expression profiling.

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Department of Plant Biology and Genome Center, University of California, Davis, Davis, CA 95616, USA.


Transcriptional regulation plays a major role in defining cell identity. Analysis of cell type-resolution expression profiling datasets is moving beyond cataloging gene expression patterns to reveal novel biological insights. Recently developed expression maps of the shoot apical meristem and gametophytes can be used as tools to help define novel cell types and pathways. Already these maps have revealed cell type-specific epigenetic regulatory mechanisms that play important roles in development. Further examples are provided that demonstrate how cell type-specific expression profiling can also be used to uncover genes and pathways in development and response to stress that would be nearly impossible to identify using traditional genetics.

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