Genetics

Article

AQHA Board of Directors Votes on Key Rule Changes at Convention

March 11, 2004

The American Quarter Horse Association Board of Directors voted Tuesday on the recommendations of the AQHA standing committees as approved in the general membership meeting. The following is the final results of the vote regarding hyperkalemic... Read More

Article

AQHA Statement on HC/HERDA

March 08, 2004

The American Quarter Horse Association's (AQHA) statement regarding hyperelastosis cutis (HC) or hereditary equine regional dermal asthenia (HERDA): 

1. AQHA is aware of the condition known as hereditary equine regional... Read More

Article

Inherited Quarter Horse Disease Traces To Poco Bueno

February 26, 2004

Poco Bueno was identified as the sire line associated with hereditary equine regional dermal asthenia (HERDA).... Read More

Article

Hereditary Disease Research Into HERDA

February 26, 2004

If we have any doubt about a horse with lesions that look like HERDA (also called HC), we can test to see if that animal does have this disease. Usually it's easy to diagnose, once you've seen a few.... Read More

Article

Junctional Epidermolysis Bullosa (JEB) in Belgian Draft Horses: AAEP 2003

February 17, 2004

Junctional epidermolysis bullosa (JEB) is an inherited disease that causes skin lesions over pressure points of the body in newborn Belgian foals and results in large areas of skin loss. The disease is a lethal condition and affected foals typically ... Read More

Article

The Future of Horses with HYPP

December 30, 2003

Letter to the Editor:

This letter must begin by saying how proud I am of a man whom I have never met.  His name is Steve Stevens of Houston, TX, the current president of the American Quarter Horse Association (AQHA).  Mr.... Read More

Article

Can Laminitis be Inherited?

October 01, 2003

Q: I just read your excellent article "The Latest on Laminitis" by Karen Briggs. Is laminitis an inheritable disease? What about founder?   ... Read More

Article

First Equine Clone is a Mule

July 01, 2003

The landscape of equine reproduction research dramatically changed May 29, when a University of Idaho (UI) and Utah State University team announced they were the first to clone a member of the equine family--the mule--according to an article to... Read More

Article

A Horse of a Different Color

May 01, 2003

What is your favorite color of horse? Is it the pitch black of Walter Farley's Black Stallion? The whiteness of the Lone Ranger's Silver? The sunshine gold of Roy Rogers' Trigger? How does a breeder capitalize on the fancy colors that bring big... Read More

Article

Heritability of Behavior

May 01, 2003

One of the most complex and least-studied subjects involving the horse is heritability of behavior. Do horses truly inherit behavioral traits, or do these traits simply come into being as the result of environmental factors and influences? There... Read More

Article

Cremello Gene Found

April 01, 2003

The researchers developed a molecular test to detect the cream gene in DNA found in the blood or hair. Guerin says the test will help owners identify heterozygous carriers of the gene (those able to pass on the cremello gene to offspring).... Read More

Article

Mare vs. Stallion Genes

April 01, 2003

Q: I hear people talking about how genetic lines all trace through the paternal side of the horse. What about the mares? What quality of foal would you get if you doubled on the maternal side, linebreeding (mating related... Read More

Article

AQHA Members Vote to Retain White Rule

March 17, 2003

More than 1,000 American Quarter Horse Association (AQHA) members attended the 63rd annual convention, where the organization’s board voted to retain Rule 227(c), which limits the amount of white on horses eligible for registration in the... Read More

Article

Genetic Defects Statement Issued by AAEP

March 11, 2003

The American Veterinary Medical Association (AVMA) recently re-stated a policy that surgical correction of “genetic defects” for the purposes of concealing the defect is unethical. If surgical correction is undertaken for the purpose of improvin... Read More

Article

Genetic Compatibility

January 28, 2003

Michael Goodbody is the managing director of Gainsborough Stud Management near Newbury, England. He delivered the following speech to the Thoroughbred Breeders Association (TBA) at its annual awards dinner in London on Jan. 7.

I would now... Read More

Article

Genetically Speaking

January 28, 2003

Ireland is not a big country. It covers only 32,599 square miles, making it about the same size as Indiana. But Ireland plays a large and important role in the Thoroughbred industry. Some of the best runners in the world are raised on its... Read More

Article

Genome Meeting Convenes

November 26, 2002

In October 2002, a meeting of the Interagency Working Group for domestic animal genome sequencing was convened at the USDA Whitten Building in Washington DC to discuss prioritization of domestic animal species for DNA genome sequencing. That suc... Read More

Article

Meeting Addresses Prioritization of DNA Genome Sequencing in Animals

November 22, 2002

In October 2002, a meeting of the Interagency Working Group for domestic animal genome sequencing was convened at the USDA Whitten Building in Washington, D.C. to discuss prioritization of domestic animal species for DNA genome sequencing. That... Read More

Article

The Gray Gene

October 23, 2002

British scientists have identified the distinctive gene that gives about 3% of the Thoroughbred population the gray coat color, and they plan to continue studying the genetics in hopes of learning why grays are more prone to developing melanomas... Read More

Article

American Quarter Horse Association Board of Directors to Consider Eligibility of Cremellos and Amendment of "White Rule"

October 16, 2002

Cremellos or perlinos, which are horses that exhibit light or pink skin over the body, white or cream-colored hair, and blue eyes, might be eligible for registration in the American Quarter Horse Association (AQHA). Last week, the AQHA Stud Book... Read More

Article

Arabian Registry To Require DNA Testing

October 11, 2002

DNA testing replaces blood typing as the Arabian Horse Registry of America's required tool for verification.... Read More

Article

USDA Funds Genome Project

October 11, 2002

The horse genome effort received a major boost in April 1998 when the United States Department of Agriculture (USDA) approved renewal of an initiative of the National Animal Genome Project which, for the first time, includes support for... Read More

Article

Origins of the Horse

September 18, 2002

It was previously thought that modern horses were descended from a limited number of wild herds and were selectively bred, leading to the diversity in breeds that we have now. However, new DNA evidence suggests that horses have a more diverse... Read More

Article

Rare White Thoroughbred Born in Kentucky

April 10, 2002

Patchen Beauty, the rare white Thoroughbred mare who garnered a lot of attention when she competed on the Kentucky circuit in the mid-1990s, produced a white colt on April 5 at Warren Rosenthal's Patchen Wilkes Farm near Lexington,... Read More

Article

Solving Health Problems Through Genetics

April 01, 2002

The solution to health and soundness problems facing horses might be as close as the horse itself. Laminitis, colic, respiratory disease, and even joint problems could be prevented or treated using genetics. At the Blue Ribbon Horse Genome... Read More