Species of the Xiphinema americanum - group (Nematoda, Dorylaimida) occurring in the Western Cape Province, South Africa

The taxonomic study of 20 populations of the Xiphinema americanum - group, collected from the Western Cape Province in South Africa, revealed the occurrence of three species: X. incognitum, Lamberti et Bleve-Zacheo, the most common, X. americanum sensu stricto Cobb, also widespread, and X. pachtaicu...

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Published inNematologia mediterranea Vol. 23; no. 2
Main Authors Lamberti, F, D'Addabbo, T, Agostinelli, A, Larizza, A. (Consiglio Nazionale delle Ricerche, Bari (Italy). Istituto di Nematologia Agraria Applicata ai Vegetali), Hugo, H.J. (Fruit and Fruit Technology Research Inst., Stellenbosh (South Africa). Dept. of Agricultural Development)
Format Journal Article
LanguageEnglish
Published 01.12.1995
Subjects
AFRIQUE DU SUD
ANATOMIA ANIMAL
ANATOMIE ANIMALE
HOTE
HUESPEDES
IDENTIFICACION
IDENTIFICATION
MEDICION DEL CUERPO
MENSURATION CORPORELLE
SUDAFRICA
TAXONOMIA
TAXONOMIE
XIPHINEMA AMERICANUM
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Summary:The taxonomic study of 20 populations of the Xiphinema americanum - group, collected from the Western Cape Province in South Africa, revealed the occurrence of three species: X. incognitum, Lamberti et Bleve-Zacheo, the most common, X. americanum sensu stricto Cobb, also widespread, and X. pachtaicum (Tulaganov) Kirjanova, more restricted in its distribution. Identifications were confirmed by principal component and hierarchical cluster analysis of 17 morphometric characters, that indicated a clear separation of the three species among themselves and from X. diffusum Lamberti et Bleve-Zacheo and X. taylori Lamberti et al. to which some populations of X. incognitum were biometrically close [Lo studio tassonomico di 20 popolazioni del gruppo Xiphinema americanum, raccolte dalla provincia occidentale del Capo in Sud Africa, ha consentito di rinvenire la presenza di tre specie: X. incognitum, Lamberti et Bleve-Zacheo, la piu' comune, X. americanum sensu stricto Cobb, pure molto diffusa, e X. pactaicum (Tulaganov) Kirjanova, a distribuzione piu' limitata. L'identificazione e' stata confermata dall'analisi dei componenti principali e dall'analisi gerarchica cluster di 17 caratteri morfometrici, che evidenziavno una chiara separazione delle tre specie fra loro e da X. diffusum Lamberti e Bleve-Zacheo e da X. taylori Lamberti et al., a cui sono affini alcune popolazioni di X. incognitum]
Bibliography:9661533
H10
ISSN:0391-9749