Transition-transversion bias is not universal: a counter example from grasshopper pseudogenes.

Comparisons of the DNA sequences of metazoa show an excess of transitional over transversional substitutions. Part of this bias is due to the relatively high rate of mutation of methylated cytosines to thymine. Postmutation processes also introduce a bias, particularly selection for codon-usage bias...

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Bibliographic Details
Main Authors: Irene Keller, Douda Bensasson, Richard A Nichols
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2007-02-01
Series:PLoS Genetics
Online Access:http://europepmc.org/articles/PMC1790724?pdf=render