Pratt, Renae C.; Gibb, Gillian C.; Morgan-Richards, Mary; Phillips, Matthew; Hendy, Mike D.; Penny, David
We report three developments toward resolving the challenge of the apparent basal polytomy of neoavian birds. First, we describe improved conditional down-weighting techniques to reduce noise relative to signal for deeper divergences and find increased agreement between data sets. Second, we present formulae for calculating the probabilities of finding predefined groupings in the optimal tree. Finally, we report a significant increase in data: nine new mitochondrial (mt) genomes (the...[Show more]
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