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A basic limitation on inferring phylogenies by pairwise sequence comparisons
Mike Steel
Distance-based approaches in phylogenetics such as Neighbor-Joining are a fast and popular approach for building trees. These methods take pairs of sequences from them construct a…
Sequence length bounds for resolving a deep phylogenetic divergence
Mareike Fischer, Mike Steel
In evolutionary biology, genetic sequences carry with them a trace of the underlying tree that describes their evolution from a common ancestral sequence. The question of how many…
Markovian log-supermodularity, and its applications in phylogenetics
Mike Steel, Beata Faller
We establish a log-supermodularity property for probability distributions on binary patterns observed at the tips of a tree that are generated under any 2--state Markov process. We…
Maximum Likelihood Supertrees
Mike Steel, Allen Rodrigo
We analyse a maximum-likelihood approach for combining phylogenetic trees into a larger `supertree'. This is based on a simple exponential model of phylogenetic error, which ensure…
Expected Anomalies in the Fossil Record
Mareike Fischer, Mike Steel
The problem of intermediates in the fossil record has been frequently discussed ever since Darwin. The extent of `gaps' (missing transitional stages) has been used to argue against…