LP determines if a horse will have a leopard complex spotting pattern while other genes determine... more
A single autosomal dominant gene, leopard complex (LP), is responsible for different spotting patterns while modifier genes are thought to play a role in determining the amount of white patterning that is inherited. These patterns are called from lightest to darkest: few spot leopard, leopard, snowcap blanket, blanket with spots, varnish roan (marble), snowflake, frosted, speckled and mottled. Homozygosity for LP (LP/LP) is directly associated with congenital stationary night blindness (CSNB) in Appaloosa horses. Heterozygous carriers (LP/lp) are not affected. CSNB is characterized by impaired vision in dark conditions, and is present at birth.
3-5 days after arrival of the sample in the lab