Domyan ET, Guernsey MW, Kronenberg Z, Krishnan S, Boissy RE, Vickrey AI, Rodgers C, Cassidy P, Leachman SA, Fondon JW, Yandell M, Shapiro MD. Epistatic and combinatorial effects of pigmentary gene mutations in the domestic pigeon. Curr Biol. 2014 Feb 17; 24(4):459-64.