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Large-scale screen for genes controlling mammalian embryogenesis, using high-throughput gene expression analysis in
L Neidhardt1, S Gasca, K Wertz
1Max-Planck-Institut für Immunbiologie, Abt. Entwicklungsbiologie, Stübeweg 51, 79108, Freiburg, Germany.
Mechanisms of Development
|October 25, 2000
Summary
Researchers developed a high-throughput method for gene expression analysis in mouse embryos. This technique successfully identified numerous genes crucial for embryonic development, including those linked to human disorders.
Area of Science:
- Developmental Biology
- Genomics
- Molecular Biology
Background:
- Understanding gene function during mammalian embryogenesis is crucial for developmental biology.
- Large-scale gene expression analysis provides insights into complex biological processes.
Purpose of the Study:
- To adapt whole-mount in situ hybridization for high-throughput gene expression analysis in mouse embryos.
- To identify genes regulating mid-gestation embryonic development through a large-scale screen.
Main Methods:
- Utilized whole-mount in situ hybridization on a 9.5 days post-coitum (d.p.c.) mouse embryo cDNA library.
- Screened 35,760 cDNA clones, selecting 5,348 enriched for rare transcripts for analysis.
- Analyzed 361 tag-sequenced clones to identify known and novel genes.
Main Results:
- Identified 428 clones with specific expression patterns in 9.5 d.p.c. mouse embryos.
- Of 361 analyzed clones, 198 (55%) corresponded to 154 known mouse genes.
- Known genes were significantly involved in transcriptional regulation (39) and signaling (33), with many linked to embryogenesis, human disorders, or mouse mutations.
Conclusions:
- High-throughput gene expression analysis is effective for large-scale isolation of embryonic development regulators.
- This approach aids in constructing the molecular anatomy of the mouse embryo.
- Provides a foundation for investigating mammalian pattern formation, differentiation, and organogenesis.