Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitlePurifying selection maintains highly conserved noncoding sequences in Drosophila.AuthorsCasillas S; Barbadilla A; Bergman CMPublicationMolecular biology and evolution, 2007, Vol 24, Issue 10, p2222ISSN0737-4038Publication typearticleDOI10.1093/molbev/msm150