S05-03. Epigenetic control of hox genes collinear activation during vertebrate development
نویسندگان
چکیده
S05-01 Polycomb repressive complexes are required to maintain compact chromatin structure at Hox loci Ragnhild Eskeland, Duncan Sproul, Graeme Grimes, Shelagh Boyle, Martin Lieb, Clemence Kress, Nick Gilbert, Helle F. Jorgensen, Amanda G. Fisher, Arthur I. Skoultchi, Anton Wutz, Wendy A. Bickmore 1 University of Edinburgh, Edinburgh, United Kingdom 2 Research Institute of Molecular Pathology, Vienna, Austria 3 MRC Clinical Sciences Centre, London, United Kingdom 4 Albert Einstein College of Medicine, Bronx, United States
منابع مشابه
Epigenetic regulation of vertebrate Hox genes: a dynamic equilibrium.
Temporal and spatial control of Hox gene expression is essential for correct patterning of many animals. In both Drosophila and vertebrates, Polycomb and Trithorax group complexes control the maintenance of Hox gene expression in appropriate domains. In vertebrates, dynamic changes in chromatin modifications are also observed during the sequential activation of Hox genes in the embryo, suggesti...
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Hox genes are organized as clusters and specify regional identity along the anteroposterior body axis by sequential expression at a specific time and region during embryogenesis. However, the precise mechanisms underlying the sequential spatio-temporal, collinear expression pattern of Hox genes are not fully understood. Since epigenetic modifications such as chromatin architecture and histone m...
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During development of the vertebrate body axis, Hox genes are transcribed sequentially, in both time and space, following their relative positions within their genomic clusters. Analyses of animal genomes support the idea that Hox gene clustering is essential for coordinating the various times of gene activations. However, the eventual collinear ordering of the gene specific transcript domains ...
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Investigating regulation and function of the Hox genes, key regulators of positional identity in the embryo, opened a new vista in developmental biology. One of their most striking features is collinearity: the temporal and spatial orders of expression of these clustered genes each match their 3' to 5' order on the chromosome. Despite recent progress, the mechanisms underlying collinearity are ...
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ورودعنوان ژورنال:
- Mechanisms of Development
دوره 126 شماره
صفحات -
تاریخ انتشار 2009