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Rey

Brittany

“Born 10/15/2016 in Texas (we think), we adopted Rey in September 2021. She’s a trained bird hunter and the nicest dog we’ve ever owned. We have another French Brittany as well, and people don’t believe they’re the same breed. Rey is shorter, rounder, woolier and has a more delicate face than other Brittanies we know. We’re so lucky to have her!”

Place of Birth

Texas, USA

Current Location

Brookfield, Wisconsin, USA

From

Boscobel, Wisconsin, USA

This dog has been viewed and been given 2 wags

Genetic Breed Result

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Brittany

Brittanys are versatile gun dogs whose high energy and affection levels also make them a popular family dog. Originating in France, the Brittany is highly capable of doing the work it was originally bred to do, but at the end of the day, they're happy to spend time with their people and families.

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Here’s what Rey’s family tree may have looked like.
While there may be other possible configurations of her family’s relationships, this is the most likely family tree to explain Rey’s breed mix.

Breed Reveal Video

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Through Rey’s mitochondrial DNA we can trace her mother’s ancestry back to where dogs and people first became friends. This map helps you visualize the routes that her ancestors took to your home. Their story is described below the map.

Haplogroup

A1a

Haplotype

A267

Map

A1a

Rey’s Haplogroup

A1a is the most common maternal lineage among Western dogs. This lineage traveled from the site of dog domestication in Central Asia to Europe along with an early dog expansion perhaps 10,000 years ago. It hung around in European village dogs for many millennia. Then, about 300 years ago, some of the prized females in the line were chosen as the founding dogs for several dog breeds. That set in motion a huge expansion of this lineage. It's now the maternal lineage of the overwhelming majority of Mastiffs, Labrador Retrievers and Gordon Setters. About half of Boxers and less than half of Shar-Pei dogs descend from the A1a line. It is also common across the world among village dogs, a legacy of European colonialism.

A267

Rey’s Haplotype

Part of the large A1a haplogroup, this rare haplotype occurs in dogs with European ancestry.

Shar Pei dogs think A1a is the coolest!

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The Paternal Haplotype reveals a dog’s deep ancestral lineage, stretching back thousands of years to the original domestication of dogs.

Are you looking for information on the breeds that Rey inherited from her mom and dad? Check out her breed breakdown and family tree.

Paternal Haplotype is determined by looking at a dog’s Y-chromosome—but not all dogs have Y-chromosomes!

Why can’t we show Paternal Haplotype results for female dogs?

All dogs have two sex chromosomes. Female dogs have two X-chromosomes (XX) and male dogs have one X-chromosome and one Y-chromosome (XY). When having offspring, female (XX) dogs always pass an X-chromosome to their puppy. Male (XY) dogs can pass either an X or a Y-chromosome—if the puppy receives an X-chromosome from its father then it will be a female (XX) puppy and if it receives a Y-chromosome then it will be a male (XY) puppy. As you can see, Y-chromosomes are passed down from a male dog only to its male offspring.

Since Rey is a female (XX) dog, she has no Y-chromosome for us to analyze and determine a paternal haplotype.

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