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Rex

Mixed Breed

“Rex was rescued from a kill shelter, then adopted by me one week later. He looks like a chow mix and has a spotty black tongue and a small lion-type mane. He is very sweet. He gives hugs that don't end and is unaggressive, though he doesn't seem to be scared of any other dogs or people. I've had him for two weeks and he only barked once when he was attacked. When given the chance to meet other dogs on his leash, he often rushes toward them quickly, but stops just as fast when he gets to them.”

Location
New York, New York, USA
From
Texas, USA

This dog has been viewed 1015 times and been given 32 wags

Genetic Breed Result

Learn how it’s done

Mixed Breed

50.0% Chow Chow
16.1% Rottweiler
15.5% American Pit Bull Terrier
6.1% German Shepherd Dog
12.3% Supermutt

Embark Supermutt analysis

What’s in that Supermutt? There may be small amounts of DNA from these distant ancestors:

Chow Chow Chow Chow
This distinctive-looking dog breed has a proud, independent spirit that some describe as catlike. Often aloof and suspicious of strangers, the Chow Chow may not be a cuddle buddy, but for the right person, they are a fiercely loyal companion.
Learn More
Rottweiler Rottweiler
Originally used for driving cattle and protecting valuable convoys, Rottweilers are now popular family pets as well as guard, police and military dogs.
Learn More
American Pit Bull Terrier American Pit Bull Terrier
The American Pit Bull Terrier originated in the British Isles and descends from the Mastiff-type dogs introduced to England in antiquity. The breed was brought over to the United States by English immigrants in the 1800s, and quickly became one of the most popular and widespread breeds there.
Learn More
German Shepherd Dog German Shepherd Dog
German Shepherds are confident, courageous dogs with a keen sense of smell and notable intelligence.
Learn More
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Genetic Stats


Wolfiness:

1.5 % HIGH

Predicted Adult Weight:

68 lbs

Genetic Age:

42 human years

Breed Mix Matches

Explore other Embark dogs who have breed mixes that are similar to Rex’s.
A Mix Match of 100 means they are the exact same breed mix!

DNA Breed Origins

What’s this?
Breed colors:
Chow Chow
Rottweiler
American Pit Bull Terrier
German Shepherd Dog
Supermutt

Would you like more information? Have you found a lost dog wearing an Embark dog tag? You can contact us at:

Explore by tapping the parents and grandparents.
 
Family Tree From Embark PARENTS GRANDPARENTS GREAT GRANDPARENTS Mixed Chow Chow Rottweiler / American Pit Bull Terrier mix German Shepherd Dog mix Chow Chow Chow Chow Rottweiler American Pit Bull Terrier German Shepherd Dog mix Mixed Chow Chow Chow Chow Chow Chow Chow Chow

Our algorithms predict this is the most likely family tree to explain Rex’s breed mix, but this family tree may not be the only possible one.

Summary

0
AT RISK
0
CARRIER
169
CLEAR
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Clinical Traits

These clinical traits are valuable to your veterinarian and can inform the clinical decisions and diagnoses they make.

Alanine Aminotransferase (ALT) Activity result: Low Normal

Rex has one copy of a mutation associated with reduced ALT activity as measured on veterinary blood chemistry panels. Please inform your veterinarian that Rex has this genotype, as ALT is often used as an indicator of liver health and Rex is likely to have a lower than average resting ALT activity. As such, an increase in Rex’s ALT activity could be evidence of liver damage, even if it is within normal limits by standard ALT reference ranges.

Genetic Health Conditions

A genetic health condition indicates a genetic mutation that increases the risk that an animal develops a specific disease.

Not At Risk

Good news! Rex did not test positive for any of the genetic diseases that Embark screens for.

It is still important to let your veterinarian know these results because they could help guide Rex’s diagnosis and treatment if he gets sick in the future.

Not A Carrier

Good news! Rex is not a carrier for any of the genetic diseases that Embark tests for.

Common Conditions

Good news! Rex tested clear for 15 genetic conditions that are common in his breed mix.
Condition List

MDR1 Drug Sensitivity
(MDR1)
Clinical

Sensitivity to certain classes of drugs, notably the parasiticide ivermectin, as well as certain gastroprotectant and anti-cancer medications, occurs in dogs with mutatio…

Seen in German Shepherd Dogs, but not Rex.

Factor VIII Deficiency, Hemophilia A
(F8 Exon 11, Shepherd Variant 1)
Blood

Coagulopathies, disorders of blood clotting, can lead to symptoms such as easy bruising or bleeding. Dogs with coagulopathies are often at risk for excessive bleeding dur…

Seen in German Shepherd Dogs, but not Rex.

Factor VIII Deficiency, Hemophilia A
(F8 Exon 1, Shepherd Variant 2)
Blood

Coagulopathies, disorders of blood clotting, can lead to symptoms such as easy bruising or bleeding. Dogs with coagulopathies are often at risk for excessive bleeding dur…

Seen in German Shepherd Dogs, but not Rex.

Canine Leukocyte Adhesion Deficiency Type III (LAD3)
(FERMT3)
Blood

A rare disorder of white blood cells, this causes increased susceptibility to infections and bleeding tendencies. Affected dogs present with a history of persistent skin …

Seen in German Shepherd Dogs, but not Rex.

Canine Elliptocytosis
(SPTB Exon 30)
Blood

A benign disease that affects red blood cell shape, elliptocytosis rarely causes symptoms. Upon examination of a blood smear, however, affected dogs have elongated, oval …

Seen in Chow Chows, but not Rex.

Progressive Retinal Atrophy - crd1
(PDE6B)
Eyes

This retinal disease causes progressive, non-painful vision loss. The retina contains the cells, photoreceptors, that collect information about light: that is, they are t…

Seen in American Pit Bull Terriers, but not Rex.

Progressive Retinal Atrophy - crd2
(IQCB1)
Eyes

This retinal disease causes progressive, non-painful vision loss. The retina contains the cells, photoreceptors, that collect information about light: that is, they are t…

Seen in American Pit Bull Terriers, but not Rex.

Achromatopsia
(CNGA3 Exon 7 German Shepherd Variant)
Eyes

This is a progressive, nonpainful disorder of the retina that affects color vision and light perception. Cone cells not only register color, they allow the dog to adjust …

Seen in German Shepherd Dogs, but not Rex.

Hyperuricosuria and Hyperuricemia or Urolithiasis
(SLC2A9)
Kidney and Bladder

This condition causes kidney and bladder stones composed of urate; if caught early, it is responsive to dietary management. Uric acid is an intermediate of purine metabol…

Seen in American Pit Bull Terriers, but not Rex.

X-linked Ectodermal Dysplasia, Anhidrotic Ectodermal Dysplasia
(EDA Intron 8)
Multisystem

This developmental condition can cause a scanty haircoat, malformed teeth, and few or absent sweat glands. Because dogs only have sweat glands on their paw pads, they are…

Seen in German Shepherd Dogs, but not Rex.

Renal Cystadenocarcinoma and Nodular Dermatofibrosis (RCND)
(FLCN Exon 7)
Multisystem

A multiorgan syndrome best described in the German Shepherd Dog, affected dogs display thick skin nodules and signs of kidney disease, and should be evaluated by a veteri…

Seen in German Shepherd Dogs, but not Rex.

Mucopolysaccharidosis Type VII, Sly Syndrome
(GUSB Exon 3)
Multisystem

A type of lysosomal storage disease, this can cause skeletal abnormalities, growth retardation, and gait abnormalities, and can require close monitoring and special measu…

Seen in German Shepherd Dogs, but not Rex.

Neuronal Ceroid Lipofuscinosis 1, Cerebellar Ataxia - NCL-A
(ARSG Exon 2)
Multisystem

This form of lysosomal storage disease can cause juvenile to adult-onset neurologic signs, depending on the affected gene. While lipofuscin is commonly observed in the ti…

Seen in American Pit Bull Terriers, but not Rex.

Degenerative Myelopathy
(SOD1A)
Brain and Spinal Cord

A disease of mature dogs, this is a progressive degenerative disorder of the spinal cord that can cause muscle wasting and gait abnormalities. Affected dogs do not usuall…

Seen in Chow Chows, Rottweilers, American Pit Bull Terriers, German Shepherd Dogs, but not Rex.

Juvenile Laryngeal Paralysis and Polyneuropathy, Polyneuropathy with Ocular Abnormalities and Neuronal Vacuolation (POANV)
(RAB3GAP1, Rottweiler Variant)
Brain and Spinal Cord

First characterized in Rottweilers and Black Russian Terriers, puppies affected with JLPP tend to show signs as early as 3 months of age. Due to weakening or paralysis of…

Seen in Rottweilers, but not Rex.

Other Conditions:
Clear of 154

Rex is clear of 154 other genetic diseases that Embark tests for.
Explore the genetics behind your dog’s appearance, size, and genetic diversity.
Base Coat Color

Base Coat Color

Dark or Light Fur
E (Extension) Locus
Can have dark fur
Brown or Black Pigment
B (Brown) Locus
Black or gray fur and skin
Color Dilution
D (Dilute) Locus
Dark (non-dilute) fur and skin
Coat Color Modifiers

Coat Color Modifiers

Hidden Patterning
K (Dominant Black) Locus
More likely to have patterned fur
Body Pattern
A (Agouti) Locus
Fawn Sable coat color pattern
Facial Fur Pattern
E (Extension) Locus
Can have black masking (dark facial fur)
Saddle Tan
No impact on coat pattern
Merle
M (Merle) Locus
Unlikely to have merle pattern
Other Coat Traits

Other Coat Traits

Furnishings LINKAGE
Likely unfurnished (no mustache, beard, and/or eyebrows)
Coat Length
Likely long coat
Shedding
Likely heavy/seasonal shedding
Coat Texture
Likely straight coat
Hairlessness (Xolo type) LINKAGE
Very unlikely to be hairless
Hairlessness (Terrier type)
Very unlikely to be hairless
Oculocutaneous Albinism Type 2 LINKAGE
Likely not albino
Other Body Features

Other Body Features

Muzzle Length
Likely medium or long muzzle
Tail Length
Likely normal-length tail
Hind Dew Claws
Unlikely to have hind dew claws
Back Muscling & Bulk (Large Breed)
Likely normal muscling
Eye Color LINKAGE
Less likely to have blue eyes
Body Size

Body Size

Body Size 1
Smaller
Body Size 2
Larger
Body Size 3
Larger
Body Size 4
Larger
Body Size 5
Larger
Performance

Performance

Altitude Adaptation
Normal altitude tolerance

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

Haplogroup

A1d

Haplotype

A11a

Map

A1d

Rex’s Haplogroup

This female lineage can be traced back about 15,000 years to some of the original Central Asian wolves that were domesticated into modern dogs. The early females that represent this lineage were likely taken into Eurasia, where they spread rapidly. As a result, many modern breed and village dogs from the Americas, Africa, through Asia and down into Oceania belong to this group! This widespread lineage is not limited to a select few breeds, but the majority of Rottweilers, Afghan Hounds and Wirehaired Pointing Griffons belong to it. It is also the most common female lineage among Papillons, Samoyeds and Jack Russell Terriers. Considering its occurrence in breeds as diverse as Afghan Hounds and Samoyeds, some of this is likely ancient variation. But because of its presence in many modern European breeds, much of its diversity likely can be attributed to much more recent breeding.

A11a

Rex’s Haplotype

Part of the large A1d haplogroup, this common haplotype occurs in village dogs all over the world. Among the 23 breeds we have sampled it in, the most common occurrences include Rottweilers, English Setters, English Springer Spaniels, and wirehaired pointing griffons.

Some other Embark dogs with this haplotype:

The vast majority of Rottweilers have the A1d haplogroup.

Through Rex’s Y-chromosome we can trace his father’s ancestry back to where dogs and people first became friends. This map helps you visualize the routes that his ancestors took to your home. Their story is described below the map.

Haplogroup

A2a

Haplotype

Hc.5

Map

A2a

Rex’s Haplogroup

A2a is a truly ancient lineage. Unlike the recent upstart A1 lineages which found their way from a few popular European males a couple hundred years ago into many dogs in many breeds, A2a shows ancient roots without major recent expansion. It is likely one of the oldest eastern Eurasian male lineages of dogs, where it has existed for thousands of years. Nowadays, it's commonly found in Tibetan Terriers and Chow Chows as well as in Southeastern Asian village dogs. The Chow Chow seems to have been depicted in sculpture over 2,000 years ago, so this is an ancient lineage indeed, and dogs with it have a long and noble pedigree! Males from this lineage have continued to be bred in similar forms and breeds for millennia.

Hc.5

Rex’s Haplotype

Part of the A2a haplogroup, this haplotype occurs most commonly in Chow Chows and village dogs from Papua New Guinea.

Some other Embark dogs with this haplotype:

The large-sized Tibetan Mastiff descends from this ancient lineage.