Phylogenetic relationships and evolution of pulmonate gastropods (Mollusca): New insights from increased taxon sampling

Benoît Dayrat, Michele Conrad, Shaina Balayan, Tracy R. White, Christian Albrecht, Rosemary Golding, Suzete R. Gomes, M. G. Harasewych, António Manuel de Frias Martins

Research output: Contribution to journalArticlepeer-review

117 Scopus citations

Abstract

Phylogenetic relationships among higher clades of pulmonate gastropods are reconstructed based on a data set including one nuclear marker (complete ribosomal 18S) and two mitochondrial markers (partial ribosomal 16S and Cytochrome oxidase I) for a total of 96 species. Sequences for 66 of these species are new to science, with a special emphasis on sampling the Ellobiidae, Onchidiidae, and Veronicellidae. Important results include the monophyly of Systellommatophora (Onchidiidae and Veronicellidae) as well as the monophyly of Ellobiidae (including Trimusculus, Otina, and Smeagol). Relationships within Ellobiidae, Onchidiidae, and Veronicellidae are evaluated here for the first time using molecular data. Present results are compared with those from the recent literature, and the current knowledge of phylogenetic relationships among pulmonate gastropods is reviewed: despite many efforts, deep nodes are still uncertain. Identification uncertainties about early fossils of pulmonates are reviewed. Impacts of those phylogenetic and fossil record uncertainties on our understanding of the macro-evolutionary history of pulmonates, especially transitions between aquatic and terrestrial habitats, are discussed.

Original languageEnglish (US)
Pages (from-to)425-437
Number of pages13
JournalMolecular Phylogenetics and Evolution
Volume59
Issue number2
DOIs
StatePublished - May 2011

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Molecular Biology
  • Genetics

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