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The relationship between species within the Xiphinema americanum ‐group (Nematoda: Dorylaimida) 1
Author(s) -
LAMBERTI F.,
CIANCIO A.
Publication year - 1994
Publication title -
eppo bulletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.327
H-Index - 36
eISSN - 1365-2338
pISSN - 0250-8052
DOI - 10.1111/j.1365-2338.1994.tb01407.x
Subject(s) - biology , population , xiphinema , dorylaimida , cluster (spacecraft) , zoology , botany , ecology , nematology , nematode , demography , sociology , computer science , programming language
Principal components and hierarchical cluster analysis based on morphometric characters of the type populations of the 39 species attributed to the Xiphinema americanum ‐group confirmed the occurrence of five subgroups. The use of a single character is generally insufficient to characterize a species because of the wide intra‐population and intra‐specific variations. Hierarchical cluster analysis, although impractical for species/population identification, appears useful in the study of the relationships between species or groups of species.