Evolution of suiform aromatases: ancestral duplication with conservation of tissue-specific expression in the collared peccary ( Pecari tayassu ) - Corbin, C. J.; Hughes, A. L.; Heffelfinger, J. R.; Berger, T.; Waltzek, T. B.; Roser, J. F.; Santos, T. C.; Miglino, Maria Angélica; Oliveira, M. F.; Braga, F. C.; Meirelles, Flávio Vieira; Conley, A. J. (Journal of Molecular Evolution, 2007)