Abstract
Microarray technology has played an important role in promoting the understanding of gene network regulations. Different supervised and unsupervised analysis methods have been devised to extract meaningful information from gene-expression data. In this chapter, we introduce the Genome Holography method (GH) for the analysis of gene-expression data and discuss some of its possible applications, such as clique finding technique and Functional Holography Minimal Spanning Tree (FHMST). We employ this new technique to analyze a database of gene expression of Bacillus subtilis exposed to sublethal levels of 37 different antibiotics. Using this method, we present a new way to visualize and investigate the relationships between genes in different gene regulatory networks, and how these relationships change over time due to an environmental stress.
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Acknowledgements
We would like to thank Itai Baruchy for his help in applying the Functional holography method to the study of gene-expression data. We also thank Dr. Sharron Bransburg-Zabary, Yonatan Friedman, and Tamar Regev for their contribution to this project. This research has been supported in part by the Maugy-Glass Chair in Physics of Complex Systems and the Tauber Family Foundation at Tel Aviv University, by National Science Foundation-sponsored Center for Theoretical Biological Physics (CTBP) Grants PHY-0216576 and 0225630, and by the University of California at San Diego.
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Roth, D., Madi, A., Kenett, D.Y., Ben-Jacob, E. (2011). Gene Network Holography of the Soil Bacterium Bacillus subtilis . In: Witzany, G. (eds) Biocommunication in Soil Microorganisms. Soil Biology, vol 23. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-14512-4_10
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