001. Species.

Horse

Equus caballus

Equine color genetics is among the most thoroughly molecularly characterized of any species. Five base color loci (E/MC1R, A/ASIP, Cr/SLC45A2, Z/PMEL17, G/STX17) and several pattern loci (TO/KIT, O/EDNRB, LP/TRPM1, Rn/KIT, multiple W alleles in KIT, multiple SW alleles in MITF/PAX3) all map to specific mutations. Several loci have documented homozygous welfare consequences: O/O is the Lethal White Overo Syndrome; LP/LP causes Congenital Stationary Night Blindness; Z/Z causes Multiple Congenital Ocular Anomalies; Gray carriers have markedly elevated melanoma risk; some W alleles (W5, W10, W13, W22) are embryonic lethal homozygous. Several breed-specific disorders also have molecular tests (HYPP, HERDA, GBED, MH, PSSM1, MYHM in stock breeds; SCID, CA, LFS, OAAM in Arabians; WFFS in warmbloods).

Species

Horse on Breed Ledger

ClassOther

Breeds20

Registries0

On record0

Groups1

TierReference

001Breed catalog 002Breeders

002. Breed catalog

20 recognized
horse breeds.

Breeds are grouped by working purpose. Each entry links to its trait profile, registry recognition, and the breeders running that breed on Breed Ledger.

Search20 of 20

Group

A4 entries

American Quarter Horse on Breed Ledger

American Quarter Horse

Most registered breed in the world and the quintessential American stock horse. Registered by AQHA. Exceptional at sprinting a quarter mile and invaluable in ranch, rodeo, and pleasure riding.

Andalusian on Breed Ledger

Andalusian

Elegant, strongly built Iberian breed from the Andalusia region of Spain, also known as the PRE (Pura Raza Espanola). Registered by ANCCE and IAPHA. Agile, proud, and historically a war horse.

Appaloosa on Breed Ledger

Appaloosa

Colorful spotted breed developed by the Nez Perce people of the Pacific Northwest. Registered by ApHC. Known for distinctive spotting patterns and mottled skin.

Arabian on Breed Ledger

Arabian

One of the oldest and most recognizable breeds in the world, originating from the Arabian Peninsula. Registered by AHA. Refined, intelligent, and endurance-proven.

B1 entry

Belgian Draft on Breed Ledger

Belgian Draft

Massive, gentle draft breed and one of the strongest horse breeds. Registered by BIHA. Widely used for farm work, logging, and pulling competitions.

C1 entry

Clydesdale on Breed Ledger

Clydesdale

Large Scottish draft breed known for feathered legs and a high-stepping action. Registered by the Clydesdale Horse Society of North America. Iconic in parades and show hitch classes.

D1 entry

Dutch Warmblood on Breed Ledger

Dutch Warmblood

Premium sport horse breed (KWPN) from the Netherlands, dominant in Olympic show jumping and dressage. Registered by KWPN-NA. Bred systematically for performance and rideability.

F1 entry

Friesian on Breed Ledger

Friesian

Striking, all-black Dutch breed with a long mane, tail, and feathered legs. Registered by FHANA. Known for an uphill canter and presence in the dressage and carriage arenas.

G1 entry

Gypsy Vanner on Breed Ledger

Gypsy Vanner

Compact, heavily feathered colored breed developed by the Romani people of the British Isles. Registered by GVHS. Known for a calm temperament and flashy appearance.

H1 entry

Hanoverian on Breed Ledger

Hanoverian

Versatile German warmblood breed with one of the oldest studbook registries. Registered by AHS. Consistently one of the top-ranked sport horse breeds in dressage and jumping.

L1 entry

Lusitano on Breed Ledger

Lusitano

Ancient Iberian breed closely related to the Andalusian, bred in Portugal. Registered by APSL and USLEA. Courageous and agile, traditionally used in bullfighting and classical dressage.

M3 entries

Miniature Horse on Breed Ledger

Miniature Horse

Tiny horse standing no more than 34-38 inches, developed over centuries of selective breeding. Registered by AMHA and AMHR. Kept as companions and shown in halter and driving classes.

Missouri Fox Trotter on Breed Ledger

Missouri Fox Trotter

Gaited breed from the Ozark mountains known for a comfortable diagonal fox trot gait. Registered by MFTHBA. Popular trail horse in rugged terrain.

Morgan on Breed Ledger

Morgan

America's first documented breed, known for strength, stamina, and a willing disposition. Registered by AMHA. Versatile across Western, English, and driving disciplines.

P2 entries

Paint Horse on Breed Ledger

Paint Horse

Stock-type breed combining Quarter Horse or Thoroughbred bloodlines with pinto coloring. Registered by APHA. Versatile Western and English competitor.

Percheron on Breed Ledger

Percheron

Elegant French draft breed combining power with refinement from Arabian influence. Registered by PHA. Versatile for farm work, logging, and sport horse crosses.

S2 entries

Saddlebred on Breed Ledger

Saddlebred

Elegant, high-stepping breed developed in the American South for plantation riding. Registered by ASHA. Known as the "Peacock of the Show Ring."

Standardbred on Breed Ledger

Standardbred

Primary harness racing breed in the United States, known for trotting or pacing gaits. Registered by USTA. Strong, sound, and trainable off the track.

T2 entries

Tennessee Walking Horse on Breed Ledger

Tennessee Walking Horse

Gaited breed known for its smooth, four-beat running walk. Registered by TWHBEA. Popular trail and show horse valued for a comfortable, ground-covering stride.

Thoroughbred on Breed Ledger

Thoroughbred

Premier flat racing breed developed in 18th-century England. Registered by The Jockey Club. Foundation bloodstock for many other breeds; athletic and courageous.

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