It has recently been shown that the NP-hard problem of calculating the minimum number of hybridization events that is needed to explain a set of rooted binary phylogenetic trees by means of a hybridization network is fixed-parameter tractable if an instance of the problem consists of precisely two such trees. In this paper, we show that this problem remains fixed-parameter tractable for an arbitrarily large set of rooted binary phylogenetic trees. In particular, we present a quadratic kernel.
Life Sciences (theme 5), Energy (theme 4)
Cornell University Library e-Print archive
Bringing Phylogenetic Networks to Life
Life Sciences and Health

van Iersel, L.J.J, & Linz, S. (2012). A quadratic kernel for computing the hybridization number of multiple trees. e-Print archive. Cornell University Library .