Nat. Genet. 48, 427–437 (2016); published online 7 March 2016; corrected after print 25 April 2016

As we intended, other researchers have been able to use the draft spotted gar genome sequence available from the Broad Institute website since December 2011, the assembly LepOcu1 publicly available from NCBI since 13 January 2012 under accession code GCA000242695.1, and the Ensembl gene annotation (version 74, December 2013; http://www.ensembl.org/Lepisosteus_oculatus/Info/Annotation) and recent annotation by NCBI on 15 May 2014 guided by RNA sequence data from ten tissues. While this article was in review, a paper (Nature 526, 108–111, 2015) was published that arrives at conclusions similar to some of our own analyses, and we wish to acknowledge that publication, which used our unpublished data and genome annotations, emphasizing the importance of the strategy of early release of sequence data. The correction has been made to the HTML and PDF versions of the article.