Large-scale sorting of C. elegans embryos reveals the dynamics of small RNA expression.
Large-scale sorting of C. elegans embryos reveals the dynamics of small RNA expression.
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DOI:
10.1038/nmeth.1370
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发表时间:
2009-10
期刊:
影响因子:
48
通讯作者:
Rajewsky, Nikolaus
中科院分区:
文献类型:
--
作者:
Stoeckius, Marlon;Maaskola, Jonas;Colombo, Teresa;Rahn, Hans-Peter;Friedlaender, Marc R.;Li, Na;Chen, Wei;Piano, Fabio;Rajewsky, Nikolaus
Caenorhabditis elegans is one of the most prominent model systems for embryogenesis. However, it has been impractical to collect large amounts of precisely staged embryos. Thus, early C. elegans embryogenesis has not been amenable to most modern high-throughput genomics or biochemistry assays. To overcome this problem, we devised a method to collect large amounts of staged C. elegans embryos by Fluorescent Activated Cell Sorting (termed eFACS). eFACS can in principle be applied to all embryonic stages. As a proof of principle we show that a single eFACS run routinely yields tens of thousands of almost perfectly staged one-cell embryos. Since the earliest embryonic events are driven by post-transcriptional regulation, we combined eFACS with next-generation sequencing to profile the embryonic expression of small, non-coding RNAs. We discovered complex and orchestrated changes in the expression between and within almost all classes of small RNAs, including miRNAs and 26G-RNAs, during embryogenesis.
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