Our last day of testing for the year will be 22 December. The lab will start up again on 2 January 2024.
You can still place new orders and send us samples while we are on break, ready for when we reopen.
Tobiano
Summary
The tobiano pattern is often referred to as pinto, piebald (black and white) or skewbald (other colours and white). The tobiano gene produces white patches with pink skin - usually large, smooth-edged patches - on a different base coat colour.
Genetic testing for tobiano can tell you whether your horse has one copy of the tobiano gene or two (visual differences are not always present). It is also very useful when you suspect your horse or pony may carry multiple white pattern genes.
Gene or region and technical reference
Gene: inversion downstream of KIT (causative). Reference: Brooks et al. (2007)
Reported alleles
n. Test developed using animal controls.
TO. Test developed using animal cases.
Panels: groups of tests that are often ordered together
This test is in the full colour panel.
This test is in the Gypsy health & colour panel.
This test is in the Miniature health & colour panel.
This test is in the patterns panel.

White patches caused by the tobiano gene often cross the spine.