Molecular phylogeny of the Helicodontidae and Trissexodontidae (Gastropoda)

Abstract

Gómez‐Moliner, B.J., Elejalde, A.M., Arrébola, J.R., Puente, A.I., Martínez‐Ortí, A., Ruiz, A. & Madeira, MJ. (2012). Molecular phylogeny of the Helicodontidae and Trissexodontidae (Gastropoda). —Zoologica Scripta, 00, 000–000. In this study, we present a molecular phylogeny of the Trissexodontidae and Helicodontidae obtained by means of Maximum Parsimony, Neighbor Joining, Maximum Likelihood and Bayesian analyses of DNA sequences. Nearly 3 KB of sequence data of two mitochondrial genes (COI, 16S rDNA) and the nuclear rRNA gene cluster including ITS‐1, the 3′end of the 5.8S gene, the complete ITS‐2 region and 5′ end of the large subunit 28S were used to reconstruct the phylogeny of these two families. Monophyly of Trissexodontidae and Helicodontidae at the family level is well supported. A new classification of the genera in the Trissexodontidae is proposed. It includes two subfamilies: Gittenbergeriinae (monotypic for Gittenbergeria turriplana) and Trissexodontinae. The latter includes three strongly supported tribes: (i) Trissexodontini, including Mastigophallus, Trissexodon, Oestophorella and Suboestophora; (ii) Oestophorini, with Oestophora; and (iii) Caracollinini, with Caracollina, Gasulliella, Gasullia and Hatumia. The polytypic Oestophora and Suboestophora are recovered as two monophyletic genera. The anatomy of the auxiliary copulatory organs of the reproductive system is coherent with the new taxonomic interpretation of the Trissexodontidae. Further work, including some more taxa is needed to delimitate subfamilies within Helicodontidae. Finally, the addition of some sequences of other Helicoidea shows that the genus Ciliella is not closely related to Trissexodontidae, being grouped within the Hygromiidae, instead.

Phylogenetic Relationships among Populations of the Vineyard SnailCernuella virgata(Da Costa, 1778)

“…The number of haplotypes and the haplotype and nucleotide diversity within populations (Table 3) were determined using DnaSPv5 [16]. We included into our analysis two C. virgata sequences of 16S rDNA and a single COI sequence that were available in the GenBank [2,17], as well as several sequences that we used as outgroups [2,17,18]. Phylogenetic analyses were carried out using maximum likelihood (ML) and Bayesian-based inference (BI) methods.…”

Phylogenetic study of Elona quimperiana (Gastropoda: Elonidae): identification of a new haplogroup

“…What is known so far is that it shows a preference for an Atlantic climate (or Oceanic) (Köppen and Geiger 1928), inhabiting three separate areas of western Europe: the French departments of Finistère and Côtes du Nord in western Brittany (Daguzan andGloaguen 1986, Bouchet 1990); the whole Atlantic biogeographical region of the Iberian Peninsula, from northern Portugal and Galicia, through Asturias, Cantabria, and the Basque Country to the North of Navarre and southwestern France (Gómez-Moliner and Madeira 2012, Gómez-Moliner and Seddon 2017); and the southern part of La Rioja in the Iberian System (Altonaga et al 1994, Welter-Schultes 2012. Specimens living in La Rioja are disconnected from the larger haplogroup joining specimens living in Cantabria, and constituted the only haplogroup found in the Mediterranean biogeographical region (Arribas 1992, Altonaga et al 1994, Gómez-Moliner and Madeira 2012. In the Iberian Peninsula, E. quimperiana has been detected in 148 UTM 10 x 10 km grid squares (Puente et al 2001), while in France (not including Brittany) it has been reported in five more grid squares in the western region of the western Pyrenees Madeira 2012, Bertrand 2020).…”

Molecular phylogeny and trait evolution of Madeiran land snails: radiation of the Geomitrini (Stylommatophora: Helicoidea: Geomitridae)

“…Family‐group and genus‐group systematics of Helicoidea Rafinesque, 1815, to which Geomitridae belong, traditionally rested on the morphology of the reproductive organs, especially the presence or absence and morphology of accessory genital appendages such as the dart apparatus (Hesse, 1921, 1931, 1934; Schileyko, 1970, 1972a,b,1978a,b,1991, 2004, 1991; Giusti and Manganelli, 1987; Nordsieck, 1987, 1993). Molecular analyses in the past 15 years have led to numerous systematic rearrangements in helicoid land snails (Wade et al, 2007; Hugall and Stanisic, 2011; Gómez‐Moliner et al, 2013; Razkin et al, 2015; Neiber et al, 2017; Sei et al, 2017). Moreover, it could be shown that reconfigurations, transformations and reductions of the dart apparatus have evolved many times in parallel in this superfamily (Hirano et al, 2014; Köhler and Criscione, 2015; Walther et al, 2016, 2018; Neiber and Hausdorf, 2017; Neiber et al, 2017, 2018a; Chueca et al, 2018), and it may even differ considerably among closely related taxa or within a single species (Korábek et al, 2015; Neiber and Hausdorf, 2015; Kruckenhauser et al, 2017; Zopp et al, 2017; Neiber et al, 2018b).…”