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Developmental biology

Cells unite by trapping a signal

Gradients of fibroblast growth factors often induce cells to adopt different fates. A study in zebrafish embryos reveals another, unexpected role when the factors are trapped in small spaces by a special arrangement of cells. See Letter p.120

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Figure 1: Roles of fibroblast growth factors (FGFs).

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Correspondence to James Sharpe.

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Sharpe, J. Cells unite by trapping a signal. Nature 515, 41–42 (2014).

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