Extreme plastid RNA editing may confound phylogenetic reconstruction: A case study of Selaginella (lycophytes).

ABSTRACT: Cytidine-to-uridine (C-to-U) RNA editing is common in coding regions of organellar genomes throughout land plants. In most cases RNA editing alters translated amino acids or creates new start codons, potentially confounds phylogenetic reconstructions. In this study, we used the spike moss genus Selaginella (lycophytes), which has the highest frequency of RNA editing, as a model to test the effects of extreme RNA editing on phylogenetic reconstruction. We predicted the C-to-U RNA editing sites in coding regions of 18 Selaginella plastomes, and reconstructed the phylogenetic relationships within Selaginella based on three data set pairs consisted of plastome or RNA-edited coding sequences, first and second codon positions, and translated amino acid sequences, respectivel

SUBMITTER: Du XY 

PROVIDER: S-EPMC7584784 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature