Nat. Biotechnol. 31, 894–897 (2013); published online 8 October 2013; corrected after print 9 May 2014

In the version of this article initially published, in Table 1, Steven Salzberg should have been listed as the second, and not the last, of the creators of the Cufflinks software. The error has been corrected in the HTML and PDF versions of the article.