There was an error published in Development140, 3589-3594.
A mouse strain was incorrectly described. Axin2-lacZ should be TOPGAL on p. 3589 in the first section of the Materials and methods and on p. 3590, right column, line 6, and in Fig. 1A,B and legend. The corrected Fig. 1 appears below. The conclusions drawn from the results are unaffected by this error.
The authors apologise to readers for this mistake.
© 2013. Published by The Company of Biologists Ltd
2013