First complete female mitochondrial genome in four bivalve species genus Donax and their phylogenetic relationships within the Veneroida order
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Fernández Pérez, Jenyfer; Nantón, Ana; Ruiz Ruano, Francisco J; Martínez Camacho, Juan Pedro; Méndez, JosefinaEditorial
Plos One
Date
2017-09-08Referencia bibliográfica
Fernández-Pérez J, Nantón A, Ruiz-Ruano FJ, Camacho JPM, Méndez J (2017) First complete female mitochondrial genome in four bivalve species genus Donax and their phylogenetic relationships within the Veneroida order. PLoS ONE 12(9): e0184464. https://doi.org/10.1371/journal.pone.0184464
Sponsorship
Ministerio de Economía y Competitividad (Spain) through project AGL2016-75288-R AEI/FEDER, UEAbstract
Background
Four species of the genus Donax (D. semistriatus, D. trunculus, D. variegatus and D. vittatus)
are common on Iberian Peninsula coasts. Nevertheless, despite their economic importance
and overexploitation, scarce genetic resources are available. In this work, we newly
determined the complete mitochondrial genomes of these four representatives of the family
Donacidae, with the aim of contributing to unveil phylogenetic relationships within the Veneroida
order, and of developing genetic markers being useful in wedge clam identification and
authentication, and aquaculture stock management.
Principal findings
The complete female mitochondrial genomes of the four species vary in size from 17,044 to
17,365 bp, and encode 13 protein-coding genes (including the atp8 gene), 2 rRNAs and 22
tRNAs, all located on the same strand. A long non-coding region was identified in each of
the four Donax species between cob and cox2 genes, presumably corresponding to the
Control Region. The Bayesian and Maximum Likelihood phylogenetic analysis of the Veneroida
order indicate that all four species of Donax form a single clade as a sister group of
other bivalves within the Tellinoidea superfamily. However, although Tellinoidea is actually
monophyletic, none of its families are monophyletic.
Conclusions
Sequencing of complete mitochondrial genomes provides highly valuable information to
establish the phylogenetic relationships within the Veneroida order. Furthermore, we provide
here significant genetic resources for further research and conservation of this commercially
important fishing resource.