Comments on taxonomic status and host association of some Laimaphelenchus spp. (Rhabditida: Aphelenchoidea)

Comments on taxonomic status and host association of some Laimaphelenchus spp. (Rhabditida:... A reverse taxonomic approach for characterisation of several populations of an aphelenchid nematode recovered from declined oak trees in the Zagros forests, Ilam, western Iran, revealed that their 28S rDNA D2-D3 sequences matched two available sequences of the same genomic fragment belonging to two species, Laimaphelenchus belgradiensis and L. hyrcanus. Further morphological studies yielded new morphological traits that had been overlooked in their original descriptions, and a new hypothesis helping to disentangle these taxa, which have the same 28S sequences and the same phylogenetic placement, is proposed. In a similar fashion, the taxonomic status of some other species of the genus having a similar morphology or similar genomic sequences are reviewed. The possibility of proposing new synonyms was evaluated and tentative reasons for the new habitat of the recovered populations of Laimaphelenchus from the Zagros forests discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematology Brill

Comments on taxonomic status and host association of some Laimaphelenchus spp. (Rhabditida: Aphelenchoidea)

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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
1388-5545
eISSN
1568-5411
D.O.I.
10.1163/15685411-00003153
Publisher site
See Article on Publisher Site

Abstract

A reverse taxonomic approach for characterisation of several populations of an aphelenchid nematode recovered from declined oak trees in the Zagros forests, Ilam, western Iran, revealed that their 28S rDNA D2-D3 sequences matched two available sequences of the same genomic fragment belonging to two species, Laimaphelenchus belgradiensis and L. hyrcanus. Further morphological studies yielded new morphological traits that had been overlooked in their original descriptions, and a new hypothesis helping to disentangle these taxa, which have the same 28S sequences and the same phylogenetic placement, is proposed. In a similar fashion, the taxonomic status of some other species of the genus having a similar morphology or similar genomic sequences are reviewed. The possibility of proposing new synonyms was evaluated and tentative reasons for the new habitat of the recovered populations of Laimaphelenchus from the Zagros forests discussed.

Journal

NematologyBrill

Published: Jun 1, 2018

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