TY - RPRT TI - Evolutionary changes in the expression pattern of a developmentally essential gene in three Drosophila species. AU - D Wang AU - J L Marsh AU - F J Ayala PY - 1996 DO - 10.1073/pnas.93.14.7103 UR - https://pubmed.ncbi.nlm.nih.gov/8692952/ ID - 8692952 ER -