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Old 02-05-2012, 11:10 PM   #6
Blenheim
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Join Date: Feb 2005
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As I have written earlier, I'm no expert at this pedigree stuff but always have and continue to find it fascinating. Lookin' forward to reading some of your work on this crop of Derby contenders.
~
Thanks and I did read the articles you linked. I believe the X Factor (XF) information is relatively straight forward, but correct me if I'm wrong. The XF is a large heart genetic trait transmitted through the mtDNA.

A few questions:

How many Derby winners with the XF?

Isn't the XF a genetic trait and not not an indicator of ability . . . aren't there a bunch of large heart horses that haven' won a race?

We know the scientists at Equinome discovered the speed allele, the C and the endurance allele, the T. What have scientists discovered regarding the XF?
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