We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEvolutionary changes in cis and trans gene regulation.AuthorsWittkopp PJ; Haerum BK; Clark AGPublicationNature, 2004, Vol 430, Issue 6995, p85ISSN1476-4687Publication typearticleDOI10.1038/nature02698