Cytogenetic characteristics of the fish genus Cobitis from England.
The chromosomes of spiny loach specimens, genus Cobitis, from three populations in England were examined using Giemsa staining, Ag-NOR, C-banding and CMA3 techniques. All individuals examined invariably had a diploid chromosome number 2n=48 and a karyotype composed of ten metacentric, eighteen submetacentric and twenty subtelo-acrocentric chromosomes. The results revealed that only C. taenia occurred in the northern part of the Cobitis distribution range. Various cytogenetic features such as the number and location of Ag-NORs, DNA sites rich in GC pairs, and C bands confirmed the taxonomic status of the specimens. Among the individuals from English populations no polyploid forms have been detected.
Boroń
Alicja
A
Department of Zoology, Faculty of Biology, University of Warmia and Mazury in Olsztyn, Oczapowski St, Olsztyn, Poland. alibo@uwm.edu.pl
Culling
Mark
M
Pułym
Anna
A
D000818:Animals; D002871:Chromosome Banding; D002965:Classification; D003531:Cypriniformes / Q000145:classification* / Q000235:genetics*; D004247:DNA / Q000032:analysis; D004739:England; D005260:Female; D007621:Karyotyping; D008297:Male
D004247:DNA