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Trends Cell Biol. 2015 Oct;25(10):579-591. doi: 10.1016/j.tcb.2015.07.006.

Developmental Pattern Formation in Phases.

Author information

1
The Francis Crick Institute, Mill Hill Laboratory, The Ridgeway, Mill Hill, London, NW71AA, UK. Electronic address: anna.kicheva@crick.ac.uk.
2
The Francis Crick Institute, Mill Hill Laboratory, The Ridgeway, Mill Hill, London, NW71AA, UK. Electronic address: james.briscoe@crick.ac.uk.

Abstract

Cells in developing organs undergo a series of changes in their transcriptional state until a complete repertoire of cell types is specified. These changes in cell identity, together with the control of tissue growth, determine the pattern of gene expression in the tissue. Recent studies explore the dynamics of pattern formation during development and provide new insights into the control mechanisms. Changes in morphogen signalling and transcriptional networks control the specification of cell types. This is often followed by a distinct second phase, where pattern is elaborated by tissue growth. Here, we discuss the transitions between distinct phases in pattern formation. We consider the implications of the underlying mechanisms for understanding how reproducible patterns form during development.

KEYWORDS:

morphogen patterning; neural tube; tissue growth; tissue size scaling

PMID:
26410404
DOI:
10.1016/j.tcb.2015.07.006
[Indexed for MEDLINE]

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