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Layla

Chihuahua

“I got Layla from Craigslist after someone's dogs had puppies together. She has some fears of rain and loud noises, but she's fairly confident for her size. Her favorite place to be is on anyone's lap, and she's never met a person she doesn't like. Her favorite toy is a tiny stuffed lamb chop. Her weirdest quirk is if you play Renegades by X Ambassadors around her she will sing to it.”

Place of Birth

Jacksonville, Florida, USA

Current Location

Jacksonville, Florida, USA

From

Jacksonville, Florida, USA

This dog has been viewed and been given 3 wags

Genetic Breed Result

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Chihuahua

Chihuahuas have a huge personality that defies their tiny frame, known to be highly active and intelligent canines.

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Here’s what Layla’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 Layla’s breed mix.
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Health Summary

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Layla inherited one variant that you should learn more about.

Progressive Retinal Atrophy, crd4/cord1

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Layla inherited one copy of the variant we tested

What does this result mean?

This variant should not impact Layla’s health. This variant is inherited in an autosomal recessive manner, meaning that a dog needs two copies of the variant to show signs of this condition. Layla is unlikely to develop this condition due to this variant because she only has one copy of the variant.

What is Progressive Retinal Atrophy, crd4/cord1?

PRA-CRD4/cord1 is a retinal disease that causes progressive, non-painful vision loss over a 1-2 year period. The retina contains cells, called photoreceptors, that collect information about light and send signals to the brain. There are two types of photoreceptors: rods, for night vision and movement, and cones, for day vision and color. This type of PRA leads to early loss of cone cells, causing day blindness before night blindness.

Breed-Relevant Genetic Conditions

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Progressive Retinal Atrophy, prcd

Identified in Chihuahuas

Neuronal Ceroid Lipofuscinosis 7, NCL 7

Identified in Chihuahuas

Spinocerebellar Ataxia with Myokymia and/or Seizures

Identified in Chihuahuas

Intervertebral Disc Disease (Type I)

Identified in Chihuahuas

Additional Genetic Conditions

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Traits

Explore the genetics behind your dog’s appearance and size.

Base Coat Color

Base Coat Color

Coat Color Modifiers

Coat Color Modifiers

Other Coat Traits

Other Coat Traits

Other Body Features

Other Body Features

Body Size

Body Size

Performance

Performance

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Through Layla’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

C2

Haplotype

C16

Map

C2

Layla’s Haplogroup

C2 is a very old female lineage found more commonly among English Setters, English Bulldogs, and American Eskimo Dogs. We also see C2 in village dogs in South Asia. Rather than having a few characteristic breeds representing this lineage particularly well, it is present in a few uncommon individuals of many different breeds. Unlike some European breed lineages that have seen skyrocketing popularity along the path to the modern dogs we see today, C2 tends to reflect the deep history of man's best friend.

C16

Layla’s Haplotype

Part of the C2 haplogroup, this haplotype occurs most commonly in village dogs in Brazil.

You can often find his haplogroup in the lovable English Bulldog.

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

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