Live neighbor-joining.BACKGROUND
 We present Live Neighbor-Joining, a heuristic for building a live phylogeny.  We have investigated Live Neighbor-Joining on datasets of viral genomes, a plausible scenario for its application, which allowed the construction of alternative hypothesis for the relationships among virus that embrace both ancestral and descending taxa.  We also applied Live Neighbor-Joining on a set of bacterial genomes and to sets of images and texts.  Our experiments have shown interesting alternative phylogenetic hypothesis for RNA virus genomes, bacterial genomes and alternative relationships among images and texts, illustrating a wide range of scenarios where Live Neighbor-Joining may be used.
Live neighbor-joining
The well-known Neighbor-Joining heuristic is largely used for phylogenetic reconstruction.



Neighbor-Joining heuristic