Neighbor-Joining/UPGMA method version 3.6b 6 Populations UPGMA method Negative branch lengths allowed +------------------------a +---3 +-------4 +------------------------b ! ! ! +----------------------------c --5 ! +---------------d ! +---1 +----------------2 +---------------e ! +-------------------f From To Length Height ---- -- ------ ------ 5 4 0.26981 0.26981 4 3 0.12542 0.39523 3 a 0.82389 1.21912 3 b 0.82389 1.21912 4 c 0.94931 1.21912 5 2 0.55342 0.55342 2 1 0.13073 0.68415 1 d 0.53497 1.21912 1 e 0.53497 1.21912 2 f 0.66570 1.21912