Embryonic pattern scaling achieved by oppositely directed morphogen gradients
نویسندگان
چکیده
منابع مشابه
Embryonic pattern scaling achieved by oppositely directed morphogen gradients.
Morphogens are proteins, often produced in a localized region, whose concentrations spatially demarcate regions of differing gene expression in developing embryos. The boundaries of gene expression are typically sharp and the genes can be viewed as abruptly switching from on to off or vice versa upon crossing the boundary. To ensure the viability of the organism these boundaries must be set at ...
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Many patterns of cell and tissue organization are specified during development by gradients of morphogens, substances that assign different cell fates at different concentrations. Gradients form by morphogen transport from a localized site, but whether this occurs by simple diffusion or by more elaborate mechanisms is unclear. We attempt to resolve this controversy by analyzing recent data in w...
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ژورنال
عنوان ژورنال: Physical Biology
سال: 2006
ISSN: 1478-3975
DOI: 10.1088/1478-3975/3/2/003