Quote:
Originally Posted by Jennin Lauma
As far as I have understood it is possible to make a DNA test to see if two individuals have same parents (siblings) or one parent (half-siblings) without a sample from the parents needed (by only comparing the supposed siblings DNA to each other).
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Our breed is loaded with inbreeding. Variability of the breed (genes) is very small. Dogs are genetically very similar. This is not a problem for "human race" (for example).
The only reliable test is paternity and maternity.
If we wanted to determine the difference between SW and CSW, we produce DNA profile of about 100 or more CSW and Sw. Comparing these profiles we can determine the difference. It is likely that some alleles are characteristic only for CSV and others only for Sw. Problem can occur if the genetic difference between SW and SW insignificant (low).