Genetic Studies of the Arctic Cisco ('Coregonus autumnalis') in Alaska, MultipleStocks

摘要

Genetic studies of the Arctic cisco (Coregonus autumnalis) were conducted in 1991-1992 using mitochondrial and nuclear DNA analytical approaches. Results of these analyses suggested the Peel River is a major contributor to the Alaskan stock, but the proportion of the stock involved could not be determined. Variation in mitochondrial DNA showed the Bering cisco was decidedly different from Arctic cisco, and these species are readily distinguished by field biologists. Both restriction enzyme assays and DNA sequencing of mitochondrial DNA yield measurable levels of genetic variation among stocks of Arctic cisco; more basic research is required before analysis of nuclear DNA can be used as a viable stock identification tool.