DNA research to find the dominate traits

[karenkarenn]

Hello,
I didn't know where to put this question.
But is there a way to take a DNA sample from a foal and find the percentage of ancestory.
In other words,
My mare had a filly that looks like her great grandsire Deputy Minister. Is there a way based off of DNA, to find truley how much Dep Minister flows in her blood.
Her sire was grey, grand sire was grey and so was the sires dam I believe.
Is there a test that exists?
Karen

[siegy]

Hello,
I didn't know where to put this question.
But is there a way to take a DNA sample from a foal and find the percentage of ancestory.
In other words,
My mare had a filly that looks like her great grandsire Deputy Minister. Is there a way based off of DNA, to find truley how much Dep Minister flows in her blood.
Her sire was grey, grand sire was grey and so was the sires dam I believe.
Is there a test that exists?
Karen

Hi K,

Maybe Parlo can be of help?
the Sport-horse gives %,

Good luck,

Siegy,

[Pan Zareta]

Hello,
I didn't know where to put this question.
But is there a way to take a DNA sample from a foal and find the percentage of ancestory.
In other words,
My mare had a filly that looks like her great grandsire Deputy Minister. Is there a way based off of DNA, to find truley how much Dep Minister flows in her blood.
Her sire was grey, grand sire was grey and so was the sires dam I believe.
Is there a test that exists?
Karen

The short answer - No. It would require DNA samples from all individuals in the pedigree to and including the 3d generation. Even if you could obtain samples for all (unlikely at best) it would be prohibitively expensive to test them for all known polymorphisms. And even if that hurdle could be crossed, it might not yield any conclusion more reliable than the statistical avg. for contribution from an individual in the 3d gen. (12.5% +/- 3.75%).

[lindsay_aggie]

To further complicate things, even if all of the genetic testing was done there would be no way of knowing that the 50% of the genetics Deputy Minister passed on were the "good" genes. In other words, the traits that made him a great horse were not necessarily the ones that were passed to a particular offspring. To be able to quantify "how much" would not necessarily translate to "how good".

[karenkarenn]

Good Point!