Gesellschaft für Informatik e.V.

Lecture Notes in Informatics


German conference on bioinformatics 2009 P-157, 133-142 (2009).

Gesellschaft für Informatik, Bonn
2009


Copyright © Gesellschaft für Informatik, Bonn

Contents

Discovering temporal patterns of differential gene expression in microarray time series

O. Stegle , K. Denby , D. Wild , S. Mchattie , A. Meade , Z. Ghahramani and K. Borgwardt

Abstract


A wealth of time series of microarray measurements have become available over recent years. Several two-sample tests for detecting differential gene expression in these time series have been defined, but they can only answer the question whether a gene is differentially expressed across the whole time series, not in which intervals it is differentially expressed. In this article, we propose a Gaussian process based approach for studying these dynamics of differential gene expression. In experiments on Arabidopsis thaliana gene expression levels, our novel technique helps us to uncover that the family of WRKY transcription factors appears to be involved in the early response to infection by a fungal pathogen.


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Gesellschaft für Informatik, Bonn
ISBN 978-3-88579-251-2


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