Neighbor-Joining/UPGMA method version 3.6b 6 Populations Neighbor-joining method Negative branch lengths allowed +---------------mutB +-----3 ! +--------------mutC ! ! +--------------------mutD 4-------------------------2 ! ! +-------------------mutE ! +------------1 ! +-------------mutF ! +---------------mutA remember: this is an unrooted tree! Between And Length ------- --- ------ 4 3 0.19753 3 mutB 0.51403 3 mutC 0.49702 4 2 0.86487 2 mutD 0.70492 2 1 0.42751 1 mutE 0.65450 1 mutF 0.46744 4 mutA 0.51235