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Titolo:
Phylogeny of the Trichostrongylina (Nematoda) inferred from 28S rDNA sequences
Autore:
de Bellocq, JG; Ferte, H; Depaquit, J; Justine, JL; Tillier, A; Durette-Desset, MC;
Indirizzi:
Museum Natl Hist Nat, Lab Biol Parasitaire Protistol & Helminthol, F-75231Paris 05, France Museum Natl Hist Nat Paris France 05 Helminthol, F-75231Paris 05, France Fac Pharm, Parasitol Lab, F-51100 Reims, France Fac Pharm Reims France F-51100 arm, Parasitol Lab, F-51100 Reims, France Museum Natl Hist Nat, Serv Systemat Mol, IFR, CNRS 1541, F-75231 Paris 05,France Museum Natl Hist Nat Paris France 05 CNRS 1541, F-75231 Paris 05,France
Titolo Testata:
MOLECULAR PHYLOGENETICS AND EVOLUTION
fascicolo: 3, volume: 19, anno: 2001,
pagine: 430 - 442
SICI:
1055-7903(200106)19:3<430:POTT(I>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTERNAL TRANSCRIBED SPACER; RIBOSOMAL DNA-SEQUENCE; STRONGYLOID NEMATODES; SECONDARY STRUCTURE; CLADISTIC-ANALYSIS; BURSATE NEMATODES; GENE-SEQUENCES; RNA GENE; ITS-2; OSTERTAGIINAE;
Keywords:
ribosomal DNA; 28S; Nematoda; Strongylida; Trichostrongylina;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
54
Recensione:
Indirizzi per estratti:
Indirizzo: Justine, JL Museum Natl Hist Nat, Lab Biol Parasitaire Protistol & Helminthol, 61 Rue Buffon, F-75231 Paris 05, France Museum Natl Hist Nat 61 Rue Buffon Paris France 05 05, France
Citazione:
J.G. de Bellocq et al., "Phylogeny of the Trichostrongylina (Nematoda) inferred from 28S rDNA sequences", MOL PHYL EV, 19(3), 2001, pp. 430-442

Abstract

We produced a molecular phylogeny of species within the order Strongylida (bursate nematodes) using the D1 and D2 domains of 28S rDNA, with 23 new sequences for each domain. A first analysis using Caenorhabditis elegans as an outgroup produced a tree with low resolution in which three taxa (Dictyocaulus filaria, Dictyocaulus noerneri, and Metastrongylus pudendotectus) showed highly divergent sequences. In a second analysis, these three species and C. elegans were removed and an Ancylostomatina, Bunostomum trigonocephalum, was chosen (on the basis of previous morphological analyses) as the outgroup for an analysis of the phylogenetic relationships between and within the Strongylina (strongyles) and Trichostrongylina (trichostrongyles). A very robust tree was obtained. The Trichostrongylina were monophyletic, but the Strongylina were paraphyletic, though this requires confirmation. Withinthe Trichostrongylina, the three superfamilies defined from morphological characters are confirmed, with the Trichostrongyloidea sister group to a clade including the Molineoidea and Heligmosomoidea. Within the Trichostrongyloidea, the Cooperiidae, Trichostrongylidae, and Haemonchidae were polytomous, the Haemonchinae were monophyletic, but the Ostertagiinae were paraphyletic. The sister-group relationships between Molineoidea and Heligmosomoidea were unsuspected from previous morphological analysis. No unequivocal morphological synapomorphy could be found for the grouping Molineoidea + Heligmosomoidea, but none was found which contradicted it. (C) 2001 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/12/20 alle ore 15:44:05