Inference of Phylogenetic Trees from the Knowledge of Rare Evolutionary
Events
release_cehvbgyn7fhjvm6geyieywpmc4
by
Marc Hellmuth, Maribel Hernandez-Rosales, Yangjing Long, Peter F.
Stadler
2016
Abstract
Rare events have played an increasing role in molecular phylogenetics as
potentially homoplasy-poor characters.In this contribution we analyze the
phylogenetic information content from a combinatorial point of view by
consid-ering the binary relation on the set of taxa defined by the existence of
a single event separating two taxa. We showthat the graph-representation of
this relation must be a tree. Moreover, we characterize completely the
relationshipbetween the tree of such relations and the underlying phylogenetic
tree. With directed operations such as tandem-duplication-random-loss events in
mind we demonstrate how non-symmetric information constrains the position ofthe
root in the partially reconstructed phylogeny.
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