There was an error published in Development138, 5429-5439.
On p. 5431, PIPES-sucrose-FA buffer was incorrectly described. The correct composition of this buffer is: 400 mM sucrose, 50 mM EGTA, 100 mM PIPES pH 7, 4% formaldehyde.
The authors apologise to readers for this mistake.
© 2013. Published by The Company of Biologists Ltd