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Titre du document / Document title

Rna editing and phylogenetic reconstruction in two monocot mitochondrial genes

Auteur(s) / Author(s)

PETERSEN Gitte ; SEBERG Ole ; DAVIS Jerrold I. ; STEVENSON Dennis W. ;

Résumé / 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.

Revue / Journal Title

Taxon    ISSN  0040-0262   CODEN TAXNAP 

Source / Source

2006, vol. 55, no4, pp. 871-886 [16 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

International Association for Plant Taxonomy, Vienna, AUTRICHE  (1951) (Revue)

Mots-clés d'auteur / Author Keywords

Agavaceae

;

Alismatales

;

Calycanthaceae

;

Monocotyledones

;

phylogeny

;

RNA editing

;

processed paralogs

;

Localisation / Location

INIST-CNRS, Cote INIST : 3413, 35400015930796.0040

Nº notice refdoc (ud4) : 18428338



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