Arabidopsis thaliana leaf form evolved via loss of KNOX expression in leaves in association with a selective sweep. por Piazza, P, Bailey, C, Cartolano, M, Krieger, J, Cao, J, Ossowski, S, Schneeberger, K, He, F, de Meaux, J, Hall, N, Macleod, N, Filatov, D, Hay, A, Tsiantis, M