Genome evolution and the emergence of pathogenicity in avian Escherichia coli by Mageiros, L, Meric, G, Bayliss, S, Pensar, J, Pascoe, B, Mourkas, E, Calland, J, Yahara, K, Murray, S, Wilkinson, T, Wiliams, L, Hitchings, M, Porter, J, Kemmett, K, Feil, E, Jolley, K, Williams, N, Corander, J, Sheppard, S