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Nature 448, 10-11 (5 July 2007) | doi:10.1038/448010b; Published online 4 July 2007

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Gene-sequencing advances drive rapid progress.

A new generation of sequencing machines is broadening horizons for users. Various groups have recently performed epigenetic studies — looking at modifications to the genome that control its expression — that would have been utterly impractical using old technologies.