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- Title
RNA editing and phylogenetic reconstruction in two monocot mitochondrial genes.
- Authors
Petersen, Gitte; Seberg, Ole; Davis, Jerrold I.; Stevenson, Dennis W.
- Abstract
The mitochondrial genome of land plants has a high level of evolutionary plasticity that may impair its use in phylogenetic analyses. Among the most challenging properties are RNA editing and retroprocessing of edited mRNA into the mitochondrial and/or nuclear genome as processed paralogs. Using mtDNA sequence data encoding for apocytochrome B (cob) and the alpha subunit of F1-ATP synthase (atp1) across the monocots, and in two subclades, alismatids and Agavaceae, it is shown that edited sites, despite being more homoplasious than non-edited sites, perform well on the trees, and that they are not randomly distributed among taxa but have a clade specific distribution. Indirect evidence for the presence of processed paralogs is presented and their likely evolutionary fate discussed.
- Subjects
RNA editing; MITOCHONDRIAL DNA; PLANT genomes; PLANT phylogeny; MONOCOTYLEDONS; PHENOTYPIC plasticity
- Publication
Taxon, 2006, Vol 55, Issue 4, p871
- ISSN
0040-0262
- Publication type
Article
- DOI
10.2307/25065682