Wednesday 10 October 2018

Why huskies have blue eyes


Duplication associated with blue eyes in dogs
Date:  October 4, 2018
Source:  PLOS
DNA testing of more than 6,000 dogs has revealed that a duplication on canine chromosome 18 is strongly associated with blue eyes in Siberian Huskies, according to a study published October 4, 2018, in the open-access journal PLOS Genetics by Adam Boyko and Aaron Sams of Embark Veterinary, Inc., and colleagues. Embark is a dog DNA startup company headquartered in Boston, MA, and Ithaca, NY, and research partner of the Cornell University College of Veterinary Medicine. According to the authors, this represents the first consumer genomics study ever conducted in a non-human model and the largest canine genome-wide association study to date.
Consumer genomics enables genetic discovery on an unprecedented scale by linking very large databases of genomic data with phenotype information voluntarily submitted via web-based surveys. But the promise of consumer genomic data is not limited to human research. Genomic tools for dogs are readily available but the genetic underpinnings of many important traits remain undiscovered. Although two genetic variants are known to underlie blue eye color in some dogs, these do not explain the trait in some other dogs, like Siberian Huskies.

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