Comparative Characterization of the Complete Mitochondrial Genomes of the Three Apple Snails (Gastropoda: Ampullariidae) and the Phylogenetic Analyses

Abstract

The apple snails Pomacea canaliculata, Pomacea diffusa and Pomacea maculate (Gastropoda: Caenogastropoda: Ampullariidae) are invasive pests causing massive economic losses and ecological damage. We sequenced and characterized the complete mitochondrial genomes of these snails to conduct phylogenetic analyses based on comparisons with the mitochondrial protein coding sequences of 47 Caenogastropoda species. The gene arrangements, distribution and content were canonically identical and consistent with typical Mollusca except for the tRNA-Gln absent in P. diffusa. An identifiable control region (d-loop) was absent. Bayesian phylogenetic analysis indicated that all the Ampullariidae species clustered on the same branch. The genus Pomacea clustered together and then with the genus Marisa. The orders Architaenioglossa and Sorbeoconcha clustered together and then with the order Hypsogastropoda. Furthermore, the intergenic and interspecific taxonomic positions were defined. Unexpectedly, Ceraesignum maximum, Dendropoma gregarium, Eualetes tulipa and Thylacodes squamigerus, traditionally classified in order Hypsogastropoda, were isolated from the order Hypsogastropoda in the most external branch of the Bayesian inference tree. The divergence times of the Caenogastropoda indicated that their evolutionary process covered four geological epochs that included the Quaternary, Neogene, Paleogene and Cretaceous periods. This study will facilitate further investigation of species identification to aid in the implementation of effective management and control strategies of these invasive species.

Novel gene rearrangement in the mitochondrial genome of Siliqua minima (Bivalvia, Adapedonta) and phylogenetic implications for Imparidentia

“…Most amino acids were used by either two or four in invertebrates, and only Leu and Ser were encoded by six and eight different codons, respectively [ 58 ]. The nucleotide relative synonymous codon usages (RSCUs) of S .…”

Parallel duplication and loss of aquaporin-coding genes during the ‘out of the sea’ transition as potential key drivers of animal terrestrialization

“…Time-scaled ultrametric trees were inferred independently for arthropods, molluscs and annelids by using a node-dating approach on species trees that followed the most recent topologies (Richter et al 2001; Colgan et al 2007; Lindgren 2010; Kocot et al 2011;Smith et al 2011; Wiegmann et al 2011; Kocot et al 2013; Misof et al 2014; González et al2015; Razkin et al 2015; Salvi and Mariottini 2016; Uribe et al 2016; Kocot et al 2017; Peters et al 2017; Uribe and Zardoya 2017; Wang et al 2017; Fernández et al 2018; Johnson et al 2018; Pabst and Kocot 2018; Schwentner et al 2018; Yang et al 2018; Cunha and Giribet 2019; Kawahara et al 2019; Kocot et al 2019; Lee et al 2019; Lozano-Fernandez et al 2019; McKenna et al 2019; Doğan et al 2020; Erséus et al 2020;Kocot et al 2020; Sun et al 2020; Anderson and Lindgren 2021; Kallal et al 2021; Moles and Giribet 2021; Ontano et al 2021; Smith 2021; Ballesteros et al 2022). Full details for the dating analysis of arthropods and molluscs are provided elsewhere (Aristide et al in prep; Tonzo et al in prep).…”

Complete Mitogenomes of Three Carangidae (Perciformes) Fishes: Genome Description and Phylogenetic Considerations

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