BYC Genetic/Breed Calculator Huge Task Ahead!

[Rose Quartz]

Not entirely. Phenotypically (what you see) it shows pea comb, but geneotypically, with a homozygous cross like that, all of the chicks are always always heterozygous, meaning that they have one allele for the dominant gene, pea comb and one for the recessive single comb. If the pea comb parent is heterozygous P/p so it has a single comb gene, the offspring will be different. But the offspring of the the homozygous cross, meaning the pea comb is P/P and the single comb is p/p all the offspring will be heterozygous, P/p.
So genotypically the offspring of a homozygous cross are
100 percent P/p
Phenotypically they will be
pea combed.
If you cross two of the offspring P/p x P/p (heterozygous cross) you get these genotypes:
25 percent P/P
50 percent P/p
25 percent p/p
Meaning with phenotypes:
75 percent of offspring will be pea.
25 percent will be single.
If you cross two of the single combed offspring of these they will ALWAYS be phenotypically and genotypically single combed. But with the pea combed offspring, there is a good chance you won't. (Was anybody following this?)

Yes. Makes sense the only real knowledge i have on genetics is highschool bio... and that i love genetics so i may have researched some genetic stuff on my own over the years.

 

[MROO]

Recently I have been looking in to genetic calculators, however most of them have faulty English and are very old and confusing.I have seen a few threads suggesting that we need something like this, however they are mostly very old.The current calculators I've found are difficult to use, and very outdated. I think that BYC needs it's very own genetic calculator. However it will be a huge task, and it is just a suggestion, however I have done my best to make this experiment/project well fleshed out, and hopefully easy to act on.

What the calculator would need(Suggest anything I may be missing please, etc means I need way more suggestions):
-Comb types(rose,single,walnut,pea)
-Skin colour(black,white,yellow)
-Patterns(cuckoo, columbian, laced, etc)
-Colour(white,blue,buff,grey)
-Feather types(frizzle,smooth,silkie)
-Egg colour(green,pink,tan,white,brown,chocolate,blue)
-Earlobe Colour(white,red,blue)
-Number of toes(four,five)
-Feathered feet(yes or no?)
-Leg colour(green,blue,yellow,grey)


Any advice and help would be amazing, and it will truly take alot to make this project possible.
I will post bases when possible, but for the meantime any advice would be great, and if this project becomes reality that would be amazing!

Add "Eye Color" and "Spurs?" A lot of this information could be taken straight from the breed standards.

And I don't know if this would help or not, but when we register dairy cattle (mostly Guernseys,) we have to sketch individual markings on each application. We've only recently been allowed to use digital photographs. Either way, there's a pretty accurate record of each animal. If there could be a photo submission for each color variant, that would make things easier, at least in the beginning.

And here's a suggestion that might work out for lots of people - contact a university and offer the project to a masters program student. It would make an awesome thesis project! I'll bet you could even get one started through an agricultural program at one of the many technical high schools that are cropping up.

 

[Amer]

Add "Eye Color" and "Spurs?" A lot of this information could be taken straight from the breed standards.

And I don't know if this would help or not, but when we register dairy cattle (mostly Guernseys,) we have to sketch individual markings on each application. We've only recently been allowed to use digital photographs. Either way, there's a pretty accurate record of each animal. If there could be a photo submission for each color variant, that would make things easier, at least in the beginning.

And here's a suggestion that might work out for lots of people - contact a university and offer the project to a masters program student. It would make an awesome thesis project! I'll bet you could even get one started through an agricultural program at one of the many technical high schools that are cropping up.

Eye color maybe, but I dunno if spurs have been looked at genetically much yet. All you can do is breed them out. The Standard doesn't show how to breed for something, leaving it up to you whether you want your "self blue" to be lavender, splash, or blue genetically.

 

[Rose Quartz]

Add "Eye Color" and "Spurs?" A lot of this information could be taken straight from the breed standards.

And I don't know if this would help or not, but when we register dairy cattle (mostly Guernseys,) we have to sketch individual markings on each application. We've only recently been allowed to use digital photographs. Either way, there's a pretty accurate record of each animal. If there could be a photo submission for each color variant, that would make things easier, at least in the beginning.

And here's a suggestion that might work out for lots of people - contact a university and offer the project to a masters program student. It would make an awesome thesis project! I'll bet you could even get one started through an agricultural program at one of the many technical high schools that are cropping up.

Oooo! Thats a good idea.

 

[Cyprus]

Not entirely. Phenotypically (what you see) it shows pea comb, but geneotypically, with a homozygous cross like that, all of the chicks are always always heterozygous, meaning that they have one allele for the dominant gene, pea comb and one for the recessive single comb. If the pea comb parent is heterozygous P/p so it has a single comb gene, the offspring will be different. But the offspring of the the homozygous cross, meaning the pea comb is P/P and the single comb is p/p all the offspring will be heterozygous, P/p.
So genotypically the offspring of a homozygous cross are
100 percent P/p
Phenotypically they will be
pea combed.
If you cross two of the offspring P/p x P/p (heterozygous cross) you get these genotypes:
25 percent P/P
50 percent P/p
25 percent p/p
Meaning with phenotypes:
75 percent of offspring will be pea.
25 percent will be single.
If you cross two of the single combed offspring of these they will ALWAYS be phenotypically and genotypically single combed. But with the pea combed offspring, there is a good chance you won't. (Was anybody following this?)

I follow 100%

 

[The Moonshiner]

The Standard doesn't show how to breed for something, leaving it up to you whether you want your "self blue" to be lavender, splash, or blue genetically.

The standard doesn't tell you how to breed but it tells you the standard for the breed.
If it says "self blue" that means self blue which is lavender.
Self blue doesn't mean hey pick a blue any blue.

 

[ChicKat]

Have to say, didn't read the whole thread...

to the OP -- do you mean an encyclopedia of various chickens and the genetics behind the look? Doesn't sound like you are really talking a genetics calculator -- but rather pictures of what the genetics produce. Doesn't seem like you are looking for the real time dynamic changes that a calculator would produce.

There's a really good genetic calculator made by Henk Meijer from Netherlands. Perhaps there is a learning curve -- but it seems easy to use to me, it's thorough, it's accurate and it's kind of an 'industry standard' type of thing that everyone in chicken genetics world understands it. -- It can do the complex Punnet squares, and it gives you the number of chicks you need to hatch to get a specific genetic combination. My question is why would you want to reinvent a wheel? Especially when there is an excellent product out there.

@Blackhackle - gorgeous illustration of a Blue Andalusian.

There is a book called GENETICs of Chicken Colours the basics by Sigrid Van Dort and David Hancox - It shows the expression/appearance of all the chicken genes. There's also a second volume of the book. Excellent...get your local library to buy it if you don't have the spare money! It uses photographs as well as illustrations and is a superb genetics teaching tool.

These links may be old, but you can probably google from there or enter chicken genetics calculator:
http://kippenjungle.nl/kruising.html
http://kippenjungle.nl/kruisingCQ.html

In the crossing results you see links like "select for later ..." or "continue with..."

 

[Amer]

The standard doesn't tell you how to breed but it tells you the standard for the breed.
If it says "self blue" that means self blue which is lavender.
Self blue doesn't mean hey pick a blue any blue.

Yes, but people still might, and no one could tell the difference if they look the same. Unfortunately, self blue in the standard means lavender, but colorwise it could be any "self-colored" blue, meaning no lacing on the feathers, just a solid blue color. So it could mean lavender, or a "self-colored" lighter blue, or a darker "spotless splash."

 

[MROO]

Yeah, it is a good idea, one I thought of myself, but I realized it would probably take years of effort, and we don't all have that kind of time.

Get a college student to take it on as a thesis ...

 

[Amer]

Have to say, didn't read the whole thread...

to the OP -- do you mean an encyclopedia of various chickens and the genetics behind the look? Doesn't sound like you are really talking a genetics calculator -- but rather pictures of what the genetics produce. Doesn't seem like you are looking for the real time dynamic changes that a calculator would produce.

There's a really good genetic calculator made by Henk Meijer from Netherlands. Perhaps there is a learning curve -- but it seems easy to use to me, it's thorough, it's accurate and it's kind of an 'industry standard' type of thing that everyone in chicken genetics world understands it. -- It can do the complex Punnet squares, and it gives you the number of chicks you need to hatch to get a specific genetic combination. My question is why would you want to reinvent a wheel? Especially when there is an excellent product out there.

@Blackhackle - gorgeous illustration of a Blue Andalusian.

There is a book called GENETICs of Chicken Colours the basics by Sigrid Van Dort and David Hancox - It shows the expression/appearance of all the chicken genes. There's also a second volume of the book. Excellent...get your local library to buy it if you don't have the spare money! It uses photographs as well as illustrations and is a superb genetics teaching tool.

These links may be old, but you can probably google from there or enter chicken genetics calculator:
http://kippenjungle.nl/kruising.html
http://kippenjungle.nl/kruisingCQ.html

In the crossing results you see links like "select for later ..." or "continue with..."

Yup, we are very aware of the Kippenjungle Calculator. I believe you know what you are doing here. Welcome to this slightly confusing thread.