Journal
MOLECULAR PHYLOGENETICS AND EVOLUTION
Volume 59, Issue 2, Pages 425-437Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ympev.2011.02.014
Keywords
Ellobiidae; Euthyneura; Macro-evolutionary transitions; Onchidiidae; Veronicellidae
Funding
- US National Science Foundation [DEB-0933276]
- Direct For Biological Sciences [933276] Funding Source: National Science Foundation
- Division Of Environmental Biology [933276] Funding Source: National Science Foundation
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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. (C) 2011 Elsevier Inc. All rights reserved.
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