Molecular Biology and Evolution 18:1413-1416 (2001)
© 2001 Society for Molecular Biology and Evolution
Complete Mitochondrial Genome Sequence of the Polychaete Annelid Platynereis dumerilii
Department of Biology, University of Michigan; and DOE Joint Genome Institute and Lawrence Livermore National Laboratory, Walnut Creek, California
Complete mitochondrial genome sequences are now available for 126 metazoans (see Boore 1999
; Mitochondrial Genomics link at http://www.jgi.doe.gov), but the taxonomic representation is highly biased toward sampling of Arthropoda, Mollusca, Echinodermata, and especially Chordata. With few exceptions (see Wolstenholme 1992
; Boore 1999
), these are circular DNA molecules, about 16 kb in size, and they encode the same set of 37 genes. A variety of nonstandard names are sometimes used for animal mitochondrial genes (see Boore [1999
] for gene nomenclature and a table of synonyms).
Mitochondrial genome comparisons serve as a model of genome evolution. In this system, much smaller and simpler than that of the nucleus, are all of the same factors of genome evolution, where one may find tractable the changes in tRNA structure, base composition, genetic code, gene arrangement, etc. Furthermore, patterns of mitochondrial gene rearrangements are an exceptionally reliable indicator of phylogenetic
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