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Phylogenetic relationships, based on SSU rDNA sequences, among the didelphic genera of the family Trichodoridae from Portugal

In: Nematology
Authors:
Isabel M. Duarte Departamento de Biologia e Ecologia, Escola Superior Agrária de Coimbra, Bencanta, 3040-316 Coimbra, Portugal;, Email: iduarte@esac.pt

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Maria Teresa M. de Almeida Departamento de Biologia, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal

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Derek J.F. Brown Central Laboratory of General Ecology, Gagarin Street 2, 1113 Sofia, Bulgaria

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Isabel Marques Instituto Gulbenkian de Ciência, Rua da Quinta Grande, 6, 2781-901 Oeiras, Portugal

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Roy Neilson Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, UK

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Wilfrida Decraemer Royal Belgian Institute of Natural Sciences, Brussels, Belgium

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Online Publication Date:
01 Jan 2010
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Abstract

A survey of virus vector trichodorid nematodes was carried out in the central and northern regions of Portugal. Morphobiometric identification showed the presence of trichodorid species previously reported from Portugal, except for Paratrichodorus porosus, which is reported for the first time in Continental Europe. Small subunit ribosomal DNA (SSU rDNA) sequences of ten different species occurring in Portugal were obtained and a phylogenetic analysis based on their alignment was performed to infer relationships among the different Portuguese trichodorid species and three non-indigenous populations (Nanidorus minor, P. allius and P. teres). The resulting phylogenetic tree is in agreement with the currently accepted classification for Trichodoridae, except for Nanidorus, which clusters together with Trichodorus species, while the genera Paratrichodorus and Trichodorus appear as two distinct groups. A better understanding of the generic groupings in the family Trichodoridae was found. Based on the new molecular analyses we herein accept Nanidorus as a valid genus.

Title:
Phylogenetic relationships, based on SSU rDNA sequences, among the didelphic genera of the family Trichodoridae from Portugal
Article Type:
Research Article
DOI:
https://doi.org/10.1163/156854109X461721
Language:
English
Pages:
171–180
Keywords:
MOLECULAR; PHYLOGENY; TYLOLAIMOPHORUS MINOR; TRICHODORUS; 18S RDNA; NANIDORUS; PARATRICHODORUS POROSUS; TOBACCO RATTLE VIRUS (TRV); PARATRICHODORUS
In:
Nematology
In:
Volume 12: Issue 2
Publisher:
Brill
E-ISSN:
1568-5411
Print ISSN:
1388-5545
Subjects:
Nematology, Biology

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