Molecular Phylogenetics and Evolution 120 (2018) 233–239 Contents lists available at ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev Short Communication Mitochondrial gene order evolution in Mollusca: Inference of the ancestral state from the mtDNA of Chaetopleura apiculata (Polyplacophora, Chaetopleuridae) Davide Guerra , Karim Bouvet, Sophie Breton Université de Montréal, Département de Sciences Biologiques, 90 avenue Vincent-D’Indy, H2V 2S9 Montréal, Québec, Canada ARTICLE I NFO ABSTRACT Keywords: The mitochondrial genome architecture of polyplacophorans has been usually regarded as being very ancient in Chaetopleura apiculata comparison to all mollusks. However, even if some complete chiton mtDNAs have been recently sequenced, Polyplacophora thorough studies of their evolution are lacking. To further expand the set of complete chiton mtDNAs and Mollusca perform such analysis, we sequenced the mitochondrial genome of the Eastern beaded chiton Chaetopleura Mitochondrial genome apiculata (Chaetopleuridae) using next-generation sequencing. With mitochondrial sequences from all available Gene order evolution chiton mtDNAs, we also built a phylogeny on which we reconstructed the evolution of gene arrangement in this Phylogeny class. The arrangement of C. apiculata proved to be the most primitive known so far for polyplacophorans. Comparing this gene order to those of other molluscan classes, we found that it most
Molecular Phylogenetics and Evolution – Elsevier
Published: Mar 1, 2018
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