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Merle - SINGLE ASSAY TEST

US$ 75.00 RRP

US$ 67.50 (USER PRICE)

Description:

This test is offered under the terms of a sublicense granted by IDEXX Laboratories Inc.  Please include a hair sample with ALL swab samples submittedClick here to download our Merle Hair Sample Submission Form.

Click here for a Merle Fact Sheet.

Test Overview:

Please Note - The Merle test is offered under the terms of a sublicense granted by IDEXX Laboratories Inc. Merle dog coat color is a coat pattern in domestic dogs, specific for patches of diluted pigment mixed together with normal melanin. Dog homozygous for merle gene is known as double merle (genotype MM). Double merle has been recognized as sublethal and is associated with many abnormalities in the reproductive, cardiac and skeletal system. Many of these abnormalities share similarities with Waardenburg syndrome (WS), an autosomal dominant auditory-pigmentation disorder in humans.

Category:

Trait (Associated with Phenotype)

Gene:

SILV

Variant Detected:

250 base pair SINE insertion, oligo(dA)-rich tails with length polymorphism. Detects and reports all the 7 alleles on the M Locus (Mh, M, Ma+, Ma, Mc+, Mc and m)

Severity:

It is a trait and so is tested based on preference, not usually for health concerns.

Mode of Inheritance:

Dominant with Variable Expressivity

Research Citation(s):

Langevin et al; PLoS One. 2018; 13(9): Merle phenotypes in dogs – SILV SINE insertions from Mc to Mh.
Leigh Anne Clark, Jacquelyn M. Wahl, Christine A. Rees, and Keith E. Murphy (2006): Retrotransposon insertion in SILV is responsible for merle patterning of the domestic dog. PNAS 103 (5) 1376-1381, 2006,doi:10.1073/pnas.0506940103
Hedan, B. et al. (2006.): Coat color in dogs: identification of the Merle locus in the Australian shepherd breed. BCM Vet Res. 2:9.
Strain et al. (2009.): Prevalence of Deafness in Dogs Heterozygous or Homozygous for the Merle Allele. J Vet Intern Med 2009; 23:282-286.
Langevin M, SynkovaH, Jancuskova T, Pekova S (2018) Merle phenotypes in dogs – SILV SINE insertions from Mc to Mh. PLoS ONE 13(9): e0198536.https://doi.org/10.1371/journal. pone.0198536

Associated Breed(s):

American Bulldog , American Cocker Spaniel, American Staffordshire Terrier, Aussiedoodle, Australian Bulldog, Australian Shepherd, Border Collie, British Bulldog, Cardigan Welsh Corgi, Chihuahua, Collie Rough, Collie Smooth, French Bulldog, Koolie , Miniature American Shepherd, Sheepadoodle, Smithfield,