There was an error published in Development 141, 3197-3211.
In the key for Fig. 3C, the grey bars were labelled with the incorrect genotype name. The correct genotype is Mek1+/flox;Mek2−/−;Dermo1+/cre. This error does not affect the conclusions of the paper.
The authors apologise to readers for this mistake.
© 2015. Published by The Company of Biologists Ltd
2015