Molecular and morphological consilience in the characterisation and delimitation of five nematode species from Florida belonging to the Xiphinema americanum-group

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dc.contributor.authorGozel, Ugur
dc.contributor.authorLamberti, Franco
dc.contributor.authorDuncan, Larry
dc.contributor.authorAgostinelli, Augusta
dc.contributor.authorRosso, Laura
dc.contributor.authorNguyen, Khuong
dc.contributor.authorAdams, Byron J.
dc.date.accessioned2025-01-27T18:56:10Z
dc.date.available2025-01-27T18:56:10Z
dc.date.issued2006
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractTaxonomic keys and original descriptions were used to identify 26 Xiphinema americanum-group populations from Florida comprising X. georgianum (eight populations), X. citricolum (six), X. floridae (six), X. laevistriatum (five) and X. tarjanense (one). Principal component analysis of a subset of 19 morphometric characters accorded with the species designations; discriminant analysis of six characters assigned 93 % (111 of 119) of the specimens to the correct putative species. A phylogeny of these populations estimated from analyses of rDNA sequences (ITS and D2D3) was also congruent with species designations from taxonomic keys and PCA. The D2D3 sequences revealed very little intraspecific variation whereas each population sampled produced a unique ITS sequence. Intraspecific variation in the suites of character code values from polytomous keys resulted mainly from minor discrepancies between population character means and reported character ranges for the species. We show that, for these taxa, species delimitation based on the requirement that sister taxa evolve autapomorphies distinguishes intraspecific variation from phylogeny and, as applied to molecular characters, delimits the same taxa as those predicted by morphological keys and PCA. © Koninklijke Brill NV, 2006.
dc.description.sponsorshipCooperative State Research, Education, and Extension Service, CSREES, (35302-16089); Florida Agricultural Experiment Station, FAES; Türkiye Bilimsel ve Teknolojik Araştirma Kurumu, TÜBITAK
dc.identifier.doi10.1163/156854106778613958
dc.identifier.endpage532
dc.identifier.issn1388-5545
dc.identifier.issue4
dc.identifier.scopus2-s2.0-33750155029
dc.identifier.scopusqualityQ2
dc.identifier.startpage521
dc.identifier.urihttps://doi.org/10.1163/156854106778613958
dc.identifier.urihttps://hdl.handle.net/20.500.12428/12888
dc.identifier.volume8
dc.indekslendigikaynakScopus
dc.language.isoen
dc.relation.ispartofNematology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_Scopus_20250125
dc.subjectD2D3; Dagger nematode; ITS; Phylogeny; rDNA; Taxonomy; Xiphinema citricolum; Xiphinema floridae; Xiphinema georgianum; Xiphinema laevistriatum; Xiphinema tarjanense
dc.titleMolecular and morphological consilience in the characterisation and delimitation of five nematode species from Florida belonging to the Xiphinema americanum-group
dc.typeArticle

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