Complementing aculiferan mitogenomics: comparative characterization of mitochondrial genomes of Solenogastres (Mollusca, Aplacophora).

Autor: Bergmeier FS; Faculty of Biology, Ludwig-Maximilians-Universität München, Systematic Zoology, Munich, Germany. bergmeier@biologie.uni-muenchen.de., Brachmann A; Faculty of Biology, Genetics, Ludwig-Maximilians-Universität München, Munich, Germany., Kocot KM; Department of Biological Sciences and Alabama Museum of Natural History, University of Alabama, Tuscaloosa, AL, USA., Leasi F; Department of Biology, Geology, and Environmental Science, University of Tennessee at Chattanooga, Chattanooga, TN, USA., Poustka AJ; Dahlem Centre for Genome Research and Medical Systems Biology, Environmental and Phylogenomics Group, Berlin, Germany.; Stiftung Naturschutz Berlin, Berlin, Germany., Schrödl M; SNSB-Bavarian State Collection of Zoology, Munich, Germany., Sevigny JL; Hubbard Centre for Genome Studies, University of New Hampshire, Durham, NH, USA., Thomas WK; Hubbard Centre for Genome Studies, University of New Hampshire, Durham, NH, USA., Todt C; Biota Naturkompetanse AS, Bergen, Norway., Jörger KM; SNSB-Bavarian State Collection of Zoology, Munich, Germany.
Jazyk: angličtina
Zdroj: BMC ecology and evolution [BMC Ecol Evol] 2024 Oct 18; Vol. 24 (1), pp. 128. Date of Electronic Publication: 2024 Oct 18.
DOI: 10.1186/s12862-024-02311-5
Abstrakt: Background: With the advances in high-throughput sequencing and bioinformatic pipelines, mitochondrial genomes have become increasingly popular for phylogenetic analyses across different clades of invertebrates. Despite the vast rise in available mitogenomic datasets of molluscs, one class of aplacophoran molluscs - Solenogastres (or Neomeniomorpha) - is still neglected.
Results: Here, we present six new mitochondrial genomes from five families of Solenogastres (Amphimeniidae, Gymnomeniidae, Proneomeniidae, Pruvotinidae, Simrothiellidae), including the first complete mitogenomes, thereby now representing three of the four traditional orders. Solenogaster mitogenomes are variable in size (ranging from approximately 15,000 bp to over 17,000 bp). The gene order of the 13 protein coding genes and two rRNA genes is conserved in three blocks, but considerable variation occurs in the order of the 22 tRNA genes. Based on phylogenetic analyses and reconstruction of ancestral mitochondrial genomes of Aculifera, the position of (1) trnD gene between atp8 and atp6, (2) trnT and P genes between atp6 and nad5, and (3) trnL1 gene between G and E, resulting in a 'MCYWQGL1E'-block of tRNA genes, are all three considered synapomorphies for Solenogastres. The tRNA gene block 'KARNI' present in Polyplacophora and several conchiferan taxa is dissolved in Solenogastres.
Conclusion: Our study shows that mitogenomes are suitable to resolve the phylogenetic relationships among Aculifera and within Solenogastres, thus presenting a cost and time efficient compromise to approach evolutionary history in these clades.
(© 2024. The Author(s).)
Databáze: MEDLINE
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