Molecular fluctuations and interpreting spatial gradients, applied to Hunchback pattern formation
نویسندگان
چکیده
منابع مشابه
Sequential pattern formation governed by signaling gradients.
Rhythmic and sequential segmentation of the embryonic body plan is a vital developmental patterning process in all vertebrate species. However, a theoretical framework capturing the emergence of dynamic patterns of gene expression from the interplay of cell oscillations with tissue elongation and shortening and with signaling gradients, is still missing. Here we show that a set of coupled genet...
متن کاملEnvironment fluctuations on single species pattern formation
System-environment interactions are intrinsically nonlinear and dependent on the interplay between many degrees of freedom. The complexity may be even more pronounced when one aims to describe biologically motivated systems. In that case, it is useful to resort to simplified models relying on effective stochastic equations. A natural consideration is to assume that there is a noisy contribution...
متن کاملPattern formation in spatial games
Pattern formation is crucial for maintaining biodiversity and cooperation in nature and human society. We review recent works on the formation of spatial patterns in the framework of evolutionary games, involving rock-paper-scissors game and social dilemmas. The rock-paper-scissors game, as a basic paradigm for characterizing nonhierarchical cyclical competition in ecosystems, has been widely u...
متن کاملModels of pattern formation applied to plant development
Plants are the beautiful results of a chain of complex pattern forming events. Pattern formation—the generation of regular differences in space—occurs at several levels of organization. For example, a particular group of cells at the shoot apex may receive a signal to form a leaf. The leaf will get a polarity, developing an upper and a lower side. Some cells of the leaf may develop into stomata...
متن کاملPattern Formation and Spatial Chaos in Spatially
We consider an array of scalar nonlinear dynamical systems _ u = f(u), arranged on the sites of a spatial lattice, for example on the integer lattice ZZ2 in the plane IR2. We impose a coupling between nearest neighbors, and also between next-nearest neighbors, in the form of discrete Laplacians with +and -shaped stencils. These couplings can be of any strength, and of either sign (positive or n...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Developmental Biology
سال: 2008
ISSN: 0012-1606
DOI: 10.1016/j.ydbio.2008.05.484