Folia Parasitologica 58[2] 149-156 (2011) | DOI: 10.14411/fp.2011.014

A new species of Litomosoides (Nematoda: Onchocercidae), parasite of Nectomys palmipes (Rodentia: Cricetidae: Sigmodontinae) from Venezuela: description, molecular evidence, Wolbachia pipientis screening

Ricardo Guerrero1, Odile Bain2, Coralie Martin3, Michela Barbuto4
1 Laboratorio de Biología de Vectores y Parásitos, Instituto de Zoología y Ecología Tropical, Universidad Central de Venezuela, P.O. Box 47058, Caracas, 1041A, Venezuela
2 UMR 7205 CNRS, Muséum National d'Histoire Naturelle, Parasitologie comparée, 61 rue Buffon, CP52, 75231 Paris Cedex 05, France
3 INSERM, FRE 3206 CNRS, Muséum National d'Histoire Naturelle, Parasitologie comparée, 61 rue Buffon, CP52, 75231 Paris Cedex 05, France
4 ZooPlantLab, Università degli Studi Milano Bicocca, Dipartimento di Biotecnologie e Bioscienze, Piazza della Scienza 2, 20126 Milano, Italy

The onchocercid filaria Litomosoides taylori sp. n. is described from the sigmodontine cricetid Nectomys palmipes Allen et Chapman in northeast Venezuela. A voucher specimen of the new species was used for molecular analysis of the coxI and 12S rDNA genes, and screened for the presence of the endobacterium Wolbachia pipientis. Litomosoides taylori belongs to the "sigmodontis group" of Litomosoides and a combination of characters can be used to distinguish it from the remaining 18 species forming this group. Among the five Nectomys species, all living near running water, N. squamipes also harbours Litomosoides species, L. khonae in Brazil and L. navonae in Argentina. These three Litomosoides species of the "sigmodontis group" do not share any particular characters. Gene sequences of L. taylori differ from those of the five Litomosoides species available, the three of the "carinii group" being the most distant. The new species harbours W. pipientis, which is concurrent with the great majority of Litomosoides species screened to date.

Keywords: Litomosoides, Onchocercidae, integrative taxonomy, Wolbachia screening

Received: November 16, 2010; Accepted: January 17, 2011; Published: June 1, 2011  Show citation

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Guerrero, R., Bain, O., Martin, C., & Barbuto, M. (2011). A new species of Litomosoides (Nematoda: Onchocercidae), parasite of Nectomys palmipes (Rodentia: Cricetidae: Sigmodontinae) from Venezuela: description, molecular evidence, Wolbachia pipientis screening. Folia Parasitologica, 58(2), 149-156. doi: 10.14411/fp.2011.014
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