Molecular Evolution

New findings reported from D. Erpenbeck and co-authors describe advances in molecular evolution

Published in Genetics and Environmental Law Weekly, August 4th, 2007

"Many rDNA molecular phylogenetic studies result in trees that are incongruent to either alternative gene tree reconstructions and/or morphological assumptions. One reason for this outcome might be the application of suboptimal phylogenetic substitution models," scientists in Brisbane, Australia report.

"While the most commonly implemented models describe the evolution of independently evolving characters fairly well, they do not account for character dependencies such as rRNA strands that form a helix in the ribosome. Such non-independent sites require the use of models that take into account the coevolution of the complete nucleotide pair (doublet). We analyzed 28S...

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Source: Genetics and Environmental Law Weekly (2007-08-04)

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