Table S3. Region-to-region transition rates inferred using discrete traits model,,, Transition,Inclusion probability,Bayes factor,Conditional mean rate Veneto to Friuli-Venezia Giulia,0.997,4480,1.079 Veneto to Lombardy,0.993,2160,1.827 Emilia Romagna to Lazio,0.99,1500,1.11 Lombardy to Piedmont,0.879,111,1.109 Lombardy to Emilia Romagna,0.852,87.5,1.421 Veneto to Emilia Romagna,0.589,21.8,1.159 Piedmont to Emilia Romagna,0.38,9.34,0.818 Veneto to Piedmont,0.322,7.22,0.703 Piedmont to Lombardy,0.291,6.25,0.727 Piedmont to Veneto,0.253,5.17,0.607 Friuli-Venezia Giulia to Emilia Romagna,0.243,4.89,0.691 Friuli-Venezia Giulia to Veneto,0.241,4.82,0.725 Lazio to Veneto,0.233,4.62,0.651 Friuli-Venezia Giulia to Lombardy,0.233,4.62,0.652 Lazio to Emilia Romagna,0.23,4.54,0.667 Piedmont to Friuli-Venezia Giulia,0.229,4.52,0.598 Emilia Romagna to Piedmont,0.228,4.5,0.996 Piedmont to Lazio,0.221,4.31,0.608 Friuli-Venezia Giulia to Piedmont,0.22,4.29,0.679 Lazio to Friuli-Venezia Giulia,0.218,4.24,0.646 Lazio to Lombardy,0.217,4.21,0.666 Lazio to Piedmont,0.209,4.03,0.655 Friuli-Venezia Giulia to Lazio,0.205,3.94,0.638 Lombardy to Veneto,0.194,3.66,0.627 Emilia Romagna to Lombardy,0.167,3.04,0.786 Emilia Romagna to Veneto,0.141,2.5,0.611 Emilia Romagna to Friuli-Venezia Giulia,0.134,2.35,0.605 Lombardy to Friuli-Venezia Giulia,0.091,1.52,0.394 Lombardy to Lazio,0.089,1.49,0.404 Veneto to Lazio,0.084,1.4,0.38