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.
Department of Zoology, Faculty of Biology, University of Warmia and Mazury in Olsztyn, Oczapowski St, Olsztyn, Poland. alibo@uwm.edu.pl
Alicja
A
Boroń
Mark
M
Culling
Anna
A
Pułym
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