E-locus, coat colour (alpaca)

LABOKLIN Service ID: 8983

The development of the different coat colors in alpacas is determined by numerous genetic factors.
The E locus (MCR1 gene) controls whether black pigment (eumelanin) can be stored in the hair. If at least one dominant E allele is present in the E locus, the alpaca is generally able to produce black eumelanin and store it in the hair. However, if the animal is homozygous for the recessive e allele (e1 or e2), only the red-brown pigment pheomelanin can be deposited in the hair – regardless of which genetic variants are present at the A locus. The E locus therefore has a superior effect over the A locus.
The variants e1 (C901T) and e2(A82G) are examined as part of this genetic test.

Duration

1 - 2 weeks after arrival of the sample in the lab