Recruitment of a hedgehog Regulatory Circuit in Butterfly Eyespot Evolution Keys, David N. ; Lewis, David L. ; Selegue, Jane E. ; Pearson, Bret J. ; Goodrich, Lisa V. ; Johnson, Ronald L. ; Gates, Julie ; Scott, Matthew P. ; Carroll, Sean B. Abstract Publication: Science Pub Date: January 1999 DOI: 10.1126/science.283.5401.532 Bibcode: 1999Sci...283..532K