Just därför behöver man stamtavlor över många generationer. Och hellre än att lägga pengar på DNA-tester för en eller annan enskild sjukdomsgen, skulle kanske uppfödare be om jämförande tester av några DLA-sekvenser hos egna och utlandsfödda avelshundar?
Bodil Carlsson
September 2015
As with most breeds, the rate of inbreeding was at
its highest in this breed in the 1980s and 1990s.
This represents a ‘genetic bottleneck’, with genetic variation lost from the population.
However,since the late 1990s the rate of inbreeding has slowed and even declined
slightly, implying maintenance and even some possible replenishment of
genetic diversity (possibly through the use of imported animals).
It appears that the extensive use of popular dogs as sires has eased a little (the ‘tail’ of the blue
distribution shortening in figure 3).It should be noted that, while animals imported from
overseas may appear completely unrelated,this is not always the case.
Often the pedigree available to the Kennel Club is limited in the number
of generations, hampering the ability to detect true, albeit distant, relationships.
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