Identification of consistent functional genetic modules
Miecznikowski Jeffrey C. (),
Gaile Daniel P.,
Chen Xiwei and
Tritchler David L.
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Chen Xiwei: Department of Biostatistics, SUNY University at Buffalo, Buffalo NY 14214, USA
Statistical Applications in Genetics and Molecular Biology, 2016, vol. 15, issue 1, 1-18
It is often of scientific interest to find a set of genes that may represent an independent functional module or network, such as a functional gene expression module causing a biological response, a transcription regulatory network, or a constellation of mutations jointly causing a disease. In this paper we are specifically interested in identifying modules that control a particular outcome variable such as a disease biomarker. We discuss the statistical properties that functional networks should possess and introduce the concept of network consistency which should be satisfied by real functional networks of cooperating genes, and directly use the concept in the pathway discovery method we present. Our method gives superior performance for all but the simplest functional networks.
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