Neighbor-Joining/UPGMA method version 3.6b 6 Populations Neighbor-joining method Negative branch lengths allowed +----------------b ! ! +-------------------c ! +------2 ! ! +-------------------d 1-------3 ! ! +----------------e ! +-4 ! +f ! +----------------a remember: this is an unrooted tree! Between And Length ------- --- ------ 1 b 0.55250 1 3 0.25073 3 2 0.21384 2 c 0.65975 2 d 0.66250 3 4 0.04928 4 e 0.56289 4 f -0.01999 1 a 0.56899