Abstract
For an ever-increasing number of species, the completed genomic sequence is available, providing a means to identify all the genes encoded in a genome. The functional relationships between these genes must be defined in order to generate a cohesive understanding of the molecular events that direct metazoan development. The model organism C. elegans, with its completed genomic sequence, defined cell lineage and robust genetics, provides an excellent opportunity to reconstruct the genetic relationships that underlie the development of a relatively simple animal. The change in expression of every predicted gene in the genome can be quantified under defined experimental conditions using DNA microarrays, thus providing a ”molecular signature“ of particular developmental processes. Because DNA microarray analysis does not rely upon detection of a gross morphological phenotype, genes whose function escapes identification in mutation screens can now be associated with different developmental processes. Together, C. elegans and DNA microarrays are a powerful combination with which to attack complex problems in developmental biology and work toward a more complete understanding of the underlying genetic networks governing development.
Keywords: Gene expression profiling, Functional genomics, clustering, microarrays
Current Genomics
Title: Defining Development Through Gene Expression Profiling
Volume: 3 Issue: 2
Author(s): Valerie Reinke
Affiliation:
Keywords: Gene expression profiling, Functional genomics, clustering, microarrays
Abstract: For an ever-increasing number of species, the completed genomic sequence is available, providing a means to identify all the genes encoded in a genome. The functional relationships between these genes must be defined in order to generate a cohesive understanding of the molecular events that direct metazoan development. The model organism C. elegans, with its completed genomic sequence, defined cell lineage and robust genetics, provides an excellent opportunity to reconstruct the genetic relationships that underlie the development of a relatively simple animal. The change in expression of every predicted gene in the genome can be quantified under defined experimental conditions using DNA microarrays, thus providing a ”molecular signature“ of particular developmental processes. Because DNA microarray analysis does not rely upon detection of a gross morphological phenotype, genes whose function escapes identification in mutation screens can now be associated with different developmental processes. Together, C. elegans and DNA microarrays are a powerful combination with which to attack complex problems in developmental biology and work toward a more complete understanding of the underlying genetic networks governing development.
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Cite this article as:
Reinke Valerie, Defining Development Through Gene Expression Profiling, Current Genomics 2002; 3 (2) . https://dx.doi.org/10.2174/1389202024605215
DOI https://dx.doi.org/10.2174/1389202024605215 |
Print ISSN 1389-2029 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5488 |
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