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MOTIVATIONS The development of most tissues and organs relies on a limited number of signal transduction pathways enabling the coordination of cellular differentiation. A proper understanding of the roles of signal transduction pathways requires the definition of formal models capturing the main qualitative features of these patterning processes. This is a(More)
Mammalian vertebrae, ribs, body wall musculature and back skin develop from repetitive embryonic tissues called somites. The development of somites depends on the molecular oscillations of the products of so-called cyclic genes. The underlying network involves the Wnt, Fgf/Mapk, Notch signaling pathways and the T-box genes. The discovery of this network is(More)
Given the complexity of developmental networks, it is often difficult to predict the effect of genetic perturbations, even within coding genes. Regulatory factors generally have pleiotropic effects, exhibit partially redundant roles, and regulate highly interconnected pathways with ample cross-talk. Here, we delineate a logical model encompassing 48(More)
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