title: Polymorphism of helminths: from morphology to genetics.
abstract: Morphological polymorphism is a common phenomenon among several groups of nematodes. Morphs are readily distinguished from species as they differ only by few minor morphological features and are associated in a characteristic manner in their distribution within hosts. Morphological polymorphism has not been recorded in cestodes; strains of Echinococcus are not morphs. The study of eco-ethological polymorphism is still in its infancy but may prove of interest, in particular in trematodes.
authors.forename: J
authors.initials: J
authors.lastname: Cabaret
authors.forename: M C
authors.initials: MC
authors.lastname: Durette-Desset
mesh_terms: D000220:Adaptation, Biological; D000483:Alleles; D000818:Animals; D003433:Crosses, Genetic; D004446:Echinococcus / Q000033:anatomy & histology / Q000145:classification / Q000235:genetics; D014644:Genetic Variation; D006376:Helminths / Q000033:anatomy & histology / Q000145:classification / Q000235:genetics*; D011110:Polymorphism, Genetic; D011506:Proteins / Q000737:chemistry
chemical_list: D011506:Proteins