Animal Health

Dog with Blue Eyes: What Causes Blue Eyes in Dogs?

dogs with blue eyes

Dog breeds with blue eyes have always caught our attention. We just can’t stop looking at them, and we are intrigued to know what causes blue eyes in dogs.

Why do some dogs have blue eyes?

It should be noted that this characteristic of blue eyes is present in many breeds. We can mention, for example, the English Shepherd, the sausage dogs, or the Border collie. For these breeds, the blue eye is a recessive trait.

A genetic mutation causes blue eyes in dogs.

This means that two genetic variants must be present for a dog to have blue eyes. Multiple investigations in this regard have shown that these genetic variants are related to coat color.

More specifically, with the merle color hues. That is spots of mottled color, also with white fur with colored spots. Despite this, these genes alone are not the cause of blue eyes in Siberian Eskimos or Australian Shepherds.

To find the underlying cause of blue eyes in dogs. The researchers compared more than 214,000 genetic markers from more than 3,180 dogs. Both purebred and mixed breed dogs were included.

The research revealed two important associations with blue eyes. The first one has to do with canine chromosome 10. That is, the gene is related to the merle color pattern.

The other link was found at a position on chromosome 18, which had not been previously described. Upon closer inspection, the scientists discovered a duplicate fragment of genetic material.

This fragment was very close to a gene that is considered essential in ocular development. A DNA analysis in 2,890 dogs confirmed the strong link between the genetic mutation and blue eyes in dogs.

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What are the most popular dog breeds with blue eyes?

Now is the time for you to know the dog breeds that have blue eyes and that are the most popular in the world.

Eight dog breeds with blue eyes

Siberian Husky

The Siberian Husky is considered one of the most popular blue-eyed dogs. It is also known to be one of the best dogs for bikejoring . They are also dogs with great strength and determination.

They are obviously popular for their blue eyes, but also for their light-colored fur. They are also usually dogs that love adventure.

Australian pastor

The Australian Shepherd is another breed of dog with blue eyes. They are excellent at helping ranchers with the herd, and of course, they stand out for their blue eyes. However, it must be said that not all Australian Shepherds have blue eyes.

Australian Shepherds can often be found with almond blue, amber, or brown eyes.

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Dalmatian

Dalmatians are a breed of dog with blue eyes that are also very popular. They are easy to identify due to their spotty fur, but also because they often only have one blue colored eye.

However, it is important to mention that breeding Dalmatians with blue eyes is not recommended at all. In most cases, this leads to deaf puppies.

German Shepherd

In addition to being one of the dog breeds with the best sense of smell, the German Shepherd also stands out for its blue eyes. In addition, and as with Dalmatians, they may have one or both blue eyes.

While many dog ​​breeders avoid crossing the blue-eyed German Shepherd, there is no information to indicate any health problems or defects. In fact, they are considered completely healthy dogs.

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Dachshund

Popularly known as a dachshund, the Dachshund can also have blue eyes. However, her default eye color is brown. Pigmentation, health, and genetics are known to play a key role in changing the color of your eyes.

They are dogs that are recommended for all families. However, there are some dachshund health considerations to consider.

Cardigan Welsh Corgi

Traditionally it is a breed of dog that is bred to perform agricultural tasks. It stands out for its high level of activity, despite its short legs. As for the color of their eyes, they are often bluish-gray.

They are also characterized by being dogs with different colored fur. Some have red fur, others black, even brindle. Although they are surprised by how fast and agile they are, they steal the eye mainly for their blue eyes.

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Border collie

In addition to being one of the dog breeds with blue eyes, they are also one of the most intelligent dogs. His blue eyes were initially thought to be the consequence of a Husky ancestor.

However, the blue color in their eyes is now known to be an ingrained physical trait in this breed. It is also common for the Border Collie to have different colored eyes.

Weimaraner

This breed of dog not only stands out for its blue eyes. It is also a dog that attracts attention for its silver-grey coat. In fact, their fur is their most distinctive characteristic, especially since not everyone has blue eyes.

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