title: The complete mitochondrial genome of the golden mussel Limnoperna fortunei and comparative mitogenomics of Mytilidae.
abstract: Here we describe the mitochondrial genome of the golden mussel Limnoperna fortunei, an Asian bivalve which has become one of the most aggressive invasive species in Japan and South America. The mitochondrial genome of L. fortunei does not present conserved gene arrangement when compared to the other Mytilidae species suggesting a high degree of gene recombination in the mitochondria of this clade. In addition, the golden mussel mitogenome encodes two copies of tRNA(Lys) and presents a putative pseudogene for the atp8 gene sequence that encodes a 27 amino acid peptide containing an in-frame stop codon. The presence of this pseudogene raises the question as to whether atp8 is encoded in some bivalve mitochondrial genomes or not. The phylogenetic analysis of all complete mitochondrial genomes available from Mytilidae mussels confirmed the close evolutionary relationships among bivalves from the genus Mytilys and placed L. fortunei coming from a more ancestral branch on the family. The supermatrix phylogeny described used the concatenation of all 12 genes from the mitochondria and disputed the monophyly of the genus Perna, as Perna perna was shown to be more closely related to Brachidontes exustus than to Perna viridis. The comparative analysis of mitogenome synteny also confirmed the polyphyly of the genus Perna. The complete and annotated mitogenome has been published in GenBank under the accession number KP756905.
authors.affiliation: BioMA Laboratory, Biophysics Institute Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Brazil. Electronic address: marcela.uliano@gmail.com.
authors.forename: Marcela
authors.initials: M
authors.lastname: Uliano-Silva
authors.affiliation: BioMA Laboratory, Biophysics Institute Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Brazil.
authors.forename: Juliana Alves
authors.initials: JA
authors.lastname: Americo
authors.affiliation: Genomics and Biodiversity Laboratory, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
authors.forename: Igor
authors.initials: I
authors.lastname: Costa
authors.affiliation: Genomics and Biodiversity Laboratory, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
authors.forename: Alex
authors.initials: A
authors.lastname: Schomaker-Bastos
authors.affiliation: BioMA Laboratory, Biophysics Institute Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Brazil.
authors.forename: Mauro
authors.initials: M
authors.lastname: de Freitas Rebelo
authors.affiliation: Genomics and Biodiversity Laboratory, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
authors.forename: Francisco
authors.initials: F
authors.lastname: Prosdocimi
mesh_terms: D000818:Animals; D001483:Base Sequence; D019143:Evolution, Molecular; D054629:Genome, Mitochondrial; D025261:Mitochondrial Proton-Translocating ATPases / Q000235:genetics; D008969:Molecular Sequence Data; D049879:Mytilidae / Q000145:classification / Q000235:genetics*; D010802:Phylogeny; D011544:Pseudogenes; D012343:RNA, Transfer / Q000235:genetics; D016415:Sequence Alignment
chemical_list: D012343:RNA, Transfer; D025261:Mitochondrial Proton-Translocating ATPases
keywords: Golden mussel; Invasive bivalve; Mitochondria phylogenetics; Mytilidae evolution