Genetics

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

Article

Smaller Horses, Bigger Reproductive Problems

March 01, 2002

Big gifts come in small packages. That's a fine sentiment when it comes to presents, but when it refers to miniature horse reproduction, that big gift/small package combo can be a little tough on the mare. It's not so great for the foal, either.... Read More

Article

Thoroughbred Pedigrees Show Little Genetic Diversity

March 01, 2002

More than 95% of Thoroughbreds share the same paternal lineage, and almost half of the genetic makeup of the breed can be attributed to just 10 foundation horses. These facts are just a few of the recent findings brought to light by a research... Read More

Article

Working for the Betterment of Horses

February 01, 2002

Moyer and Johnson are excited about the future of equine research, not only at Texas A&M, but around the world. And that excitement was made possible in large part to a woman who wanted to better the world in which horses live.... Read More

Article

Expert Panel to Spotlight Equine Genome Research

January 28, 2002

The first public gathering to explore the benefits of equine genome research will convene in Dallas, Texas, on Sat., March 2 at the American Quarter Horse Association (AQHA) 2002 Annual Convention. "Genome Research 101 for the Horse Industry"... Read More

Article

Clostridium perfringens Genome Sequenced

January 24, 2002

Japanese scientists recently announced that they have sequenced the genome of Clostridium perfringens. The organism can cause diarrhea, scours, and other intestinal problems in horses. Clostridia are normally found in various environments... Read More

Article

Breeding Planning: Selecting A Sire

January 01, 2002

When you drive by a farm and see a bright, playful young foal romping in a lush pasture with his dam, it's easy to forget how much work, money, and planning went into his breeding. Many people underestimate the planning that goes into a... Read More

Article

TV Series Focuses on Horse Genome Project

November 12, 2001

The horse genome project and the pros and cons of genetic tinkering within breeding will be the focus of a "Science Times" segment that will air Tuesday, Nov. 13 at 9:00 (EST). Science Times is a television series produced jointly by National... Read More

Article

Test-Tube Foals Born In England

November 01, 2001

Europe's first successful intracytoplasmic sperm injection (ICSI) foals were recently born in Newmarket, England, as a part of a research program designed to create better sport horses. The foals were born March 21 and 28.

Professor Twink... Read More

Article

Breeding Horses With Genetic Disorders

November 01, 2001

I read on your site that two or three Quarter Horse stallions might be traced to the syndrome of polysaccharide storage myopathy (PSSM). I have a performance Quarter Horse filly with PSSM, and I feel it is important to know who these sires... Read More