Differentiation of Spanish strains of Echinococcus granulosus using larval rostellar hook morphometry
Autor: | C. Cuesta Bandera, F. Ponce Gordo |
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Rok vydání: | 1997 |
Předmět: |
Hook
Swine Cestoda Cattle Diseases Sheep Diseases Zoology Species Specificity Discriminant function analysis Echinococcosis parasitic diseases Animals Humans Parasite hosting Horses Echinococcus granulosus Swine Diseases Larva Sheep Geography biology Strain (biology) fungi Anatomy biology.organism_classification Echinococcus Europe Infectious Diseases Spain Cattle Horse Diseases Parasitology Multivariate statistical |
Zdroj: | International Journal for Parasitology. 27:41-49 |
ISSN: | 0020-7519 |
DOI: | 10.1016/s0020-7519(96)00173-7 |
Popis: | Two multivariate statistical procedures (Principal Component Analysis and Discriminant Function Analysis) were used to analyse morphometric data from larval hooks of Spanish samples of Echinococcus granulosus previously characterized in physiological, biochemical and genetic studies. The 5 physical variables considered could be reduced to 2 functional variables (“length of hooks” and “number of hooks”). The number of hooks was found not to be a reliable character to differentiate between strains of this parasite. Three Spanish strains (sheep-cattle, pig, and horse strains) were identified; these results are compatible with those obtained using other techniques. We consider larval hook morphology as a valid criterion for identifying E. granulosus strains in Spain, with potential use for epidemiological studies. |
Databáze: | OpenAIRE |
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