Literature type: Scientific
Journal: Biochem. Genet.
Volume: 34 , Pages: 287-296.
Full reference: Tegelström, H. & von Essen, L. 1996. DNA fingerprinting of captive breeding pairs of lesser white-fronted geese (Anser erythropus) with unknown pedigrees. Biochem. Genet. 34: 287-296. https://www.dx.doi.org/10.1007/PL00020578
For a number of decades, the lesser white-fronted goose (Anser erythropus) has been almost-absent from the Fennoscandian fauna and has a current population size of only about 60 breeding pairs, with fewer than 10 pairs in Sweden. During the period 1981–1991 more than 200 young have been reintroduced in northern Sweden. However, the origin and possible relatedness of lesser white-fronted individuals were unknown when the breeding program started. We have used DNA fingerprinting to assess the similarity of 18 individuals, i.e., the entire captive population used for breeding in 1991 and about 60% of the captive population used in 1981–1991. Minisatellite probe 33.15 provided an index for an average similarity of 0.39 between the mates of the 12 breeding pairs used for producing offspring for reintroduction. This is a higher similarity than in natural populations of birds in general but lower than in populations that have passed through serious population bottlenecks. Individuals originating from different breeders are more dissimilar than those from the same breeder. However, the close relationships (similarity, 0.5–0.6) found in a group of five individuals from different breeders show that selecting individuals from different breeding groups is not sufficient to prevent mating between closely related individuals.
Literature type: Scientific
Journal: Biochemical Genetics
Volume: 33 , Pages: 123-135.
Full reference: Kuznetsov, S.B. 1995. Polymorphism of blood plasma proteins in the Anser and Branta genera. Biochemical Genetics 33: 123-135. https://www.dx.doi.org/10.1007/BF00557950
An electrophoretical analysis of blood plasma proteins of eightAnser and twoBranta species was performed. Ten polymorphic proteins in blood plasma pattern were distinguished and described: four prealbumin proteins, albumin, three postalbumin proteins, transferrin, and a single posttransferrin protein. Genus-specific and species-specific variants of Pr-1, Al, Pa-3, Pa-X, and Tf proteins were found. The species ofBranta differed inPr-1,Pa-3,Pa-X, andTf loci. TheAnser species differed, apparently, in allele frequencies of described gene loci. A single species-specific protein marker was found in swan geese only. The electrophoretic mobilities of Pr-1, TfB, and PtfA, B, and C were similar for several species ofAnser andBranta genera.
Literature type: Report
Language: Swedish (In Swedish)Download:
Full reference: Larsson, K. 1993. Projekt fjällgås. En utvärdering. På uppdrag av Världsnaturfonden WWF. [Project Lesser White-fronted Goose. An evaluation. Commissioned by World Wildlife Fund.] , Uppsala Universitet. 8pp.
Literature type: General
Journal: Sibirskii Biologicheskii Zhurnal
Full reference: Kuznetsov, S.B. 1991. [The polymorphism of Anser and Branta blood plasma proteins.], Sibirskii Biologicheskii Zhurnal:
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