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Record: oai:ARNO:503857

AuthorIan R. Ball
TitleThe karyotypes of two Dugesia species from Corfu, Greece (Platyhelminthes, Turbellaria)
JournalBijdragen tot de Dierkunde
AbstractDugesia gonocephala (Dug├Ęs, 1830) and D. polychroa (Schmidt, 1861), collected from the Greek island of Corfu, have been investigated karyologically. The former is a sexual diploid (2n = 16) in which all the chromosomes are metacentric. The latter is a sexual diploid (2n = 8) with one submetacentric and three metacentric chromosome pairs.
Within the Dugesia lugubris-polychroa complex seven biotypes are known. The karyotype of D. polychroa from Corfu is most similar to biotype G from the western Mediterranean. However, there are subtle karyological and morphological differences between the two forms and thus the Corfu population is not assigned to biotype G but is considered to have been derived independently from the basic biotype A. Thus it represents an eighth biotype within the species group.
Document typearticle
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