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Comprehensive analysis of gene-environmental interactions with temporal gene expression profiles in Pseudomonas aeruginosa



Comprehensive analysis of gene-environmental interactions with temporal gene expression profiles in Pseudomonas aeruginosa



Plos One 7(4): E35993



To explore gene-environment interactions, based on temporal gene expression information, we analyzed gene and treatment information intensively and inferred interaction networks accordingly. The main idea is that gene expression reflects the response of genes to environmental factors, assuming that variations of gene expression occur under different conditions. Then we classified experimental conditions into several subgroups based on the similarity of temporal gene expression profiles. This procedure is useful because it allows us to combine diverse gene expression data as they become available, and, especially, allowing us to lay the regulatory relationships on a concrete biological basis. By estimating the activation points, we can visualize the gene behavior, and obtain a consensus gene activation order, and hence describe conditional regulatory relationships. The estimation of activation points and building of synthetic genetic networks may result in important new insights in the ongoing endeavor to understand the complex network of gene regulation.

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Accession: 052269785

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PMID: 22558298

DOI: 10.1371/journal.pone.0035993


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