Unicorner Miniature Horse Farm 

TRUE COLORS - The Overo Pattern Genes

 
Home
Tobiano Mini Horse
Overo Mini Horse
Appaloosa Genes

 

Overo Patterns

And variations thereof:

Frame | Splashed White | Sabino |

There are probably at least three variations of the "overo" pattern caused by different genes or gene combinations. Many breeders are participating in research, so hopefully one day, there will be an easier explanation of the patterns and the genes that produce them.

    From our research there seems to be the following variations of overos:

  1. The "Frame" pattern
  2. The "Splashed White" pattern
  3. The "Sabino" pattern

These patterns can also be combined.

The Overo Pattern can manifest itself on any coat color

Overo Patterns

TYPICAL FRAME OVERO PATTERNS (Click to enlarge any picture)

  O1   O2   O3   O4   O5   O6  
             
 

Minimal
expression

                 

Maximum
expression

 

bayfover.jpg (48638 bytes)

 

blkovero.jpg (38839 bytes)

 

 

sorovero.jpg (31327 bytes)

 

 

whtovero.jpg (28830 bytes)

Note similarity to tobiano pattern in O1 and O6

A big thanks to Lisa Davis of LTD Miniatures for her help!

TYPICAL SPLASHED OVERO PATTERNS (Click to enlarge any picture)

  O1   O2   O3   O4   O5   O6  
             
 

Minimal
expression

                 

Maximum
expression

 

 

blkspl2.jpg (34257 bytes)

 

 

blkspl4.jpg (32077 bytes)

 

 

TYPICAL SABINO PATTERNS (Click to enlarge any picture)

  O1   O2   O3   O4   O5   O6  
 

AT_WORK_.GIF (271 bytes)

 

AT_WORK_.GIF (271 bytes)

 

AT_WORK_.GIF (271 bytes)

 

AT_WORK_.GIF (271 bytes)

 

AT_WORK_.GIF (271 bytes)

 

AT_WORK_.GIF (271 bytes)

 
 

Minimal
expression

                 

Maximum
expression

 

 

 

 

 

 

 

     

Home | Tobiano Mini Horse | Overo Mini Horse | Appaloosa Genes

This site was last updated 05/18/06