A lower bound on the edge l∞ radius of Saitou and Nei's method for phylogenetic reconstruction

In this paper, we study the performance of Saitou and Nei's neighbor-joining method for phylogenetic reconstruction. We show that the edge l∞ radius of the method is at least 16. This partially answers a question by Atteson (1999). Previously, only an upper bound of 14 was known.