In fact, our present understanding of morphogenesis indicates that new phyla were not made by new genes but largely emerged through the
rewiring of the gene regulatory networks (GRNs) of already existing genes (1).
We focus on developing computational methods and tools for (a) analyzing large - scale gene expression data related to human cancer in search for gene markers and disease sub-categories, (b) identifying regulatory elements such as miRNA precursors and their targets in whole genomes of plants and mammals, (c) building theoretical
models of gene regulatory networks.
Together with long - standing collaborators Edward R. Dougherty (Texas A&M University) and Wei Zhang (M.D. Anderson Cancer Center), he co-developed the model class of probabilistic Boolean networks (PBNs), which was applied to the
study of gene regulatory networks in cancer.