Mitochondrial genomes of a bandicoot and a brushtail possum confirm the monophyly of australidelphian marsupials.
AUTOR(ES)
Phillips, M J
RESUMO
Recent molecular analyses suggest that the position of bandicoots is the major difficulty in determining the root of the tree of extant marsupials. To resolve this, we analyse mitochondrial genome sequences of a bandicoot (Isoodon macrourus) and a brushtail possum (Trichosurus vulpecula) together with the previously available marsupial mitochondrial genomes, the Virginia opossum (Didelphis virginiana) and the wallaroo (Macropus robustus). Analyses of mitochondrial protein-coding and RNA genes strongly support the bandicoot as sister to the wallaroo and the brushtail possum. This result, combined with other recent molecular analyses, confirms the monophyly of Australidelphia (Australasian marsupials plus Dromiciops from South America). Further, RY coding was found to nullify AGCT coding nucleotide composition bias.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1088774Documentos Relacionados
- RNA editing changes the identity of a mitochondrial tRNA in marsupials.
- Bacteriophages from the forestomachs of Australian marsupials.
- C to U editing and modifications during the maturation of the mitochondrial tRNA(Asp) in marsupials.
- Corticobulbar fibres in the North American opossum (Didelphis marsupialis virginiana) with notes on the Tasmanian brust-tailed possum (Trichosurus vulpecula) and other marsupials.
- Comparative DNA analysis of three South American marsupials.
