Below you can find common genotypes for various generations of Bordoodles. Remember, these are the most common but there can/will be a puppy or two each litter that is different in one way or another. Also remember that it isn’t the individual genotype that makes a dog what it is, it is the combination!

F1 Bordoodles

An F1 is the product of breeding a Purebred Border Collie to a Purebred Poodle.

An F1 has a wavy, or slightly curly coat, longer hair around the muzzle and eyebrows and is a “mild shedder”.

F1b Bordoodles

An F1b can describe two different things.

An F1 bred to a purebred Border Collie or an F1 bred to Poodle are both F1b. Coats will range from wavy to curly and knowing the exact coat genetics of the parents is crucial to predictability in these combinations.

F2 Bordoodles

An F2 Bordoodle can describe two different things.

An F1 and an F1 bred together produce F2’s. But this isn’t a wise choice as the inconsistencies are numerous.

An F1 and an F1b bred together also produce F2s. This is much wiser combination and produces three coat types ranging from very low shed to non shed and soft to course.

F2b Bordoodle

An F2b Bordoodle can describe two different things.

An F2 bred back to a purebred Border Collie produces F2b Bordoodles.

An F2 bred back to a purebred Poodle also produces F2b Bordoodles.

(“b” means “back” to a foundation dog.)

This is a combination we are adding to our program in 2024. It’s a generation I am particularly meticulous about as I never want to “breed out” the foundation breeds. We do have some F2 girls such as Yogo, Lazuli and Aspen that would be great candidates to breed back to a Poodle and still maintain strong Border Collie traits while also keeping the hypoallergenic coat intact.

Multigenerational Bordoodle aka “Multigen”

A Multigen can be several things. Basically this describes any Bordoodle pairing that has produced puppies F3 and beyond. Therefor you could have three generations removed from the original cross or more than 10! This is why working with a breeder that knows her pedigrees will be very important as the breed becomes more developed.

The world’s first Multigen Bordoodles was born here, at Oregon Bordoodles! Between Yogo and Barley. They were born Jan 2021. Updated photos to follow once the little ones grow up!

There are also many coat types possible when breeding Bordoodles! There is absolutely a science to the process of intentionally creating specific coats. The “generation label” of the dog is MUCH less significant than the actual coat genetics. Please do not listen to the websites giving blanket statements that “F1b are always hypoallergenic” etc. Again, individual genetics is what counts. Not their generation label.

 

Genetic Details

There are two main genotypes that come into play for each dog when it comes to coat type and shedding possibilities. The CU Locus and the IC (or F) Locus.

CuC/CuC

This dog carries two copies of CuC which results in a curly coat. This dog will pass on CuC to 100% of its offspring.

Interpretation: Curly coat

CuC/Cu

This dog carries one copy of CuC and one copy of Cu which results in a wavy or curly coat. This dog will pass on CuC to 50% of its offspring and Cu to 50% of its offspring.

Interpretation: Curly/Wavy coat (Carrier)

Limerick
Cu/Cu

This dog carries two copies of Cu and has a straight coat. This dog will pass on Cu to 100% of its offspring.

Interpretation: Straight coat

The Cu Locus (Curly hair) impacts hair curl as a result of a DNA variant in the KRT71 gene which produces a form of keratin, a major structural component of hair. The CuC variant of KRT71 prevents keratin from binding together in a regular pattern which alters the structure of the hair and results in a curly coat.


The IC Locus (Improper coat/Furnishings) trait test reliably determines if a dog has one of the following genotypes at the IC locus:

F/F

This dog does not carry the Mutation for improper coat and will therefore have furnishings (proper coat). However, the overall coat type of this dog is dependent on the combination of this dog’s genotypes at the L, Cu, and IC loci. This dog will pass F (furnishings, proper coat) on to 100% of its offspring.

Interpretation: Furnishings

F/IC

This dog carries one copy of the mutation for improper coat (IC) and one copy of F and will therefore have furnishings (proper coat). However, the overall coat type of this dog is dependent on the combination of this dog’s genotypes at the L, Cu, and IC loci. This dog will pass IC (improper coat) on to 50% of its offspring and F (furnishings, proper coat) on to 50% of its offspring. Therefore, this dog can produce puppies with improper coat if bred with a dog that carries one copy (F/IC) or two copies (IC/IC) of the mutation for improper coat.

Interpretation: Furnishings (Improper coat Carrier)

IC/IC

This dog carries two copies of IC and will therefore have no furnishings (improper coat). However, the overall coat type of this dog is dependent on the combination of this dog’s genotypes at the L, Cu, and IC loci. This dog will pass IC (improper coat) on to 100% of its offspring and can produce puppies with improper coat if bred with a dog that carries one copy (F/IC) or two copies (IC/IC) of the mutation for improper coat.

Interpretation: No Furnishings, improper coat

Detailed Summary

The improper coat/furnishings (IC) Locus determines if a dog will have longer hair around the muzzle and eyebrows (facial furnishings) or a lack of furnishings (called improper coat in breeds for which facial furnishings are standard). A DNA variant in the RSPO2 gene, which functions in hair follicle development, results in the production of furnishings in multiple breeds and is found in all wire-haired dogs.


SD Locus:

SD/SD

This dog carries two copies of the SD Allele which has been associated with higher shedding than sd/SD and sd/sd dogs. However, the overall degree of shedding for this dog is dependent on the combination of this dog’s genotypes at the SD and IC loci. This dog will pass on SD to 100% of its offspring.

Interpretation: High shedding

sd/SD

This dog carries one copy of the sd allele and one copy of the SD allele which has been associated with moderate shedding compared to SD/SD and sd/sd dogs. However, the overall degree of shedding for this dog is dependent on the combination of this dog’s genotypes at the SD and IC loci. This dog will pass on the SD allele to 50% of its offspring and the sd allele to 50% of its offspring.

Interpretation: Moderate shedding

sd/sd

This dog carries two copies of the sd allele which has been associated with lower shedding than SD/SD and sd/SD dogs. However, the overall degree of shedding for this dog is dependent on the combination of this dog’s genotypes at the SD and IC loci. This dog will pass on the sd allele to 100% of its offspring.

Interpretation: Low shedding

Detailed Summary

Personal Note:

I have found this gene to be the least helpful or accurate. I have many 100% non shedding dogs that report as heavy shedders etc. But it a gene worth mentioning regardless. IC and Curl seem to be the Golden Babies of the coat genetics world in Doodles determining coat textures and shedding.

The SD Locus (Shedding) has been identified as one gene that can impact the degree of shedding in certain breeds of dog. A DNA variant in the MC5R gene (SD) has been associated with higher shedding in various breeds. However, the overall degree of shedding for a dog is dependent on a combination genes and a better understanding of a dog’s degree of shedding currently comes from knowledge of a dog’s genotypes at both the SD locus and IC (Improper Coat/Furnishings) locus. The MC5Rgene is expressed in the hair follicle glands that produce the oily, waxy substance called sebum that assists in lubrication, water repellency, and thermo-regulation of the skin and hair. The SD variant disrupts the structure of sebum and results in increased shedding for breeds that show variation at the SD locus. One copy of the SD variant increases shedding from relatively low to moderate and two copies of the variant results in an increase to relatively high shedding. Dogs that have an improper coat/no furnishings also have a propensity to higher shedding. The SD locus and IC locus have an additive effect on each other. Dogs that have two copies of the SD variant (SD/SD) and two copies of the IC variant (IC/IC) are the highest shedding dogs compared to dogs that have no copies of the SD variant (sd/sd) and no copies of the IC variant (F/F).

Various combinations of genotypes at the SD locus and IC locus can produce intermediate shedding states as indicated on the chart below: