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Collie Eye Anomaly (CEA) / Choroidal Hypoplasia (CH) *
Test number: 8304
Gene: CEA
Price: £ 48.00 (including VAT)
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Re ISDS: Please note that this test is accepted by the ISDS provided that the sample is collected by a vet who should also sign a sample collection form which can be downloaded from the following link: ISDS DNA Bundle Order Form '
Kennel Club: results of this test is accepted by the Kennel Club |
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Breeds
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Australian Shepherd
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Australian Kelpie
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Bearded Collie
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Border Collie
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Boykin Spaniel
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English shepherd
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Hokkaido
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Lancashire Heeler
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Longhaired Whippet
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Miniature American Shepherd
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Nova Scotia Duck tolling Retriever ( NSDTR / Toller)
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Rough Collie
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Shetland Sheepdog (Sheltie)
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Silken Windhound
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Smooth Collie
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Long Haired Whippet
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Kennel Club
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This test is part of the Official UK Kennel Club DNA Testing Scheme in Australian Shepherd, Bearded Collie, Border Collie, Lancashire Heeler, Nova Scotia Duck tolling Retriever ( NSDTR / Toller), Rough Collie, Shetland Sheepdog (Sheltie), and Smooth Collie.
for UK registered dogs, Laboklin can send results of the tests which are part of the Official UK Kennel Club DNA testing scheme to the Kennel Club (KC) to be recorded and published
as part of the Kennel Club scheme. Results will only be recorded and published by the KC if the result report includes the dog’s
microchip or tattoo number along with either the dog’s registered name or registered number. Any test results that do not carry these identifying
features will not be recorded by the Kennel Club.
In order to ensure that test results are sent to the Kennel Club, customers must also sign the declaration section on the order form to give Laboklin permission to do so.
important:
When you sign the declaration, Laboklin will send the results to the KC on your behalf, and you do not need to send them to the KC yourself again to avoid unnecessary duplications.
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The Disease |
Collie Eye Anomaly is an inherited disease with recessive mode of inheritacne which results in abnormal development of the eye's choroid.The disease can be mild or servere, in the mild form of the disease, there is a thinning in the choroid layer of the eye but the dog's vision remains normal, however, dogs with the mild form of the disease can produce severly afected offspring.
In the Severe form of the disease, the dog can suffer serious loss of vision, Colobomas can be seen around and at the optic nerve head as outpouchings in the eye tissue layers. Colobomas may lead to secondary complications such as partial or complete retinal detachments and/or growth of new but abnormal blood vessels with bleeding inside the eye. The disease can affect one or both eyes and can lead to vision loss although this disease rarely lead to complete blindness.
* test performed by partner lab |
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Trait of Inheritance |
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Inheritance : AUTOSOMAL
RECESSIVE
trait
Sire
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Dam
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Offspring
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clear
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clear
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100% clear
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clear
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carrier
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50% clear + 50%
carriers
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clear
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affected
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100% carriers
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carrier
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clear
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50% clear + 50%
carriers
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carrier
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carrier
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25% clear + 25% affected
+ 50% carriers
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carrier
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affected
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50% carriers + 50%
affected
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affected
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clear
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100% carriers
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affected
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carrier
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50% carriers + 50%
affected
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affected
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affected
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100% affected
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Clear
Genotype: N / N [ Homozygous normal ]
The dog is noncarrier of the mutant gene.
It is very unlikely that the dog will develop Collie Eye Anomaly (CEA) / Choroidal Hypoplasia (CH) *. The dog will never pass the mutation to its offspring, and therefore it can be bred to any other dog.
Carrier
Genotype: N / CEA [ Heterozygous ]
The dog carries one copy of the mutant gene and one
copy of the normal gene.
It is very unlikely that the dog will develop Collie Eye Anomaly (CEA) / Choroidal Hypoplasia (CH) * but since it carries the mutant gene, it can pass it on to its offspring with the probability of 50%. Carriers should only be bred to clear dogs. Avoid breeding carrier to carrier because 25% of their offspring is expected to be affected (see table above)
Affected
Genotype: CEA / CEA [ Homozygous mutant ]
The dog carries two copies of the mutant gene and
therefore it will pass the mutant gene to its entire offspring.
The dog is likely to develop Collie Eye Anomaly (CEA) / Choroidal Hypoplasia (CH) * and will pass the mutant gene to its entire offspring
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Price
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£ 48.00 (including VAT)
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