Phylogenetic analysis of Lymnaeid snails based on 18S rDNA sequences

Molecular Biology and Evolution
Maria Dolores Bargues, Santiago Mas-Coma

Abstract

The 18S rDNA sequences of the six most common European Lymnaeidae species (Mollusca:Gastropoda:Basommatophora) have been obtained by direct PCR cycle sequencing and silver staining methods. The sequence alignment and secondary structures of the 18S rRNA gene of Lymnaea stagnalis, L. auricularia, L. peregra, L. palustris, L. glabra, and L. truncatula are analyzed. This gene proves to be a good marker for both specific determination and supraspecific lymnaeid phylogeny. The malacological importance is evident, considering the specific determination problems of individual snails and the present systematic chaos in Lymnaeidae due to their pronounced morphoanatomic uniformity, which makes a classification by traditional methods impossible. The majority (17) of the total of 43 nucleotide-substituted positions appears to be confined to a small region included in helix E10-1 of the variable region V2, enabling species group distinction: (1) the first sequence is common to L. auricularia and L. peregra; (2) the second sequence is unique to L. truncatula; and (3) the third sequence is identical for L. glabra, L. palustris, and L. stagnalis. The other 26 nucleotide-substituted positions are dispersed over the entire gene, although four gr...Continue Reading

Citations

Jun 12, 2002·Transactions of the Royal Society of Tropical Medicine and Hygiene·María Dolores BarguesSantiago Mas-Coma
Aug 18, 1999·Transactions of the Royal Society of Tropical Medicine and Hygiene·J G EstebanS Mas-Coma
Jun 12, 2003·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·M D BarguesS Mas-Coma
Jun 12, 2003·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·A MarcillaS Mas-Coma
Feb 26, 2008·BMC Evolutionary Biology·Annette Klussmann-KolbChristian Albrecht
Aug 12, 1999·Tropical Medicine & International Health : TM & IH·S Mas-ComaW Strauss
Sep 5, 2009·Veterinary Parasitology·Roberto Mera y SierraMaria Dolores Bargues
Nov 2, 2015·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Jane CostaJean Pierre Dujardin
Sep 10, 2005·International Journal for Parasitology·S Mas-ComaM A Valero
Dec 27, 2005·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·M D BarguesS Mas-Coma
Dec 5, 2014·PLoS Neglected Tropical Diseases·Alexandra SchwarzJosé M C Ribeiro
Apr 16, 2002·Tropical Medicine & International Health : TM & IH·J Guillermo EstebanSantiago Mas-Coma
Apr 9, 2020·Revista Da Sociedade Brasileira De Medicina Tropical·Rossana FalconeJoão Aristeu da Rosa

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