Site specific rates of mitochondrial genomes and the phylogeny of eutheria |
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Authors: | Karl M Kjer Rodney L Honeycutt |
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Affiliation: | (1) Department of Ecology, Evolution, and Natural Resources, Blake Hall, Rutgers University, 93 Lipman Drive, New Brunswick, New Jersey 08901-8524, USA;(2) Natural Science Division, Pepperdine University, 24255 Pacific Coast Hwy, Malibu, California 90263-4321, USA |
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Abstract: | Background Traditionally, most studies employing data from whole mitochondrial genomes to diagnose relationships among the major lineages of mammals have attempted to exclude regions that potentially complicate phylogenetic analysis. Components generally excluded are 3rd codon positions of protein-encoding genes, the control region, rRNAs, tRNAs, and the ND6 gene (encoded on the opposite strand). We present an approach that includes all the data, with the exception of the control region. This approach is based on a site-specific rate model that accommodates excessive homoplasy and that utilizes secondary structure as a reference for proper alignment of rRNAs and tRNAs. |
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