BYC Genetic/Breed Calculator Huge Task Ahead!

[nicalandia]

Wouldn't the green eggs be O/O,P/P right? When you put them together and all?
So white would be o+/o+,p+/p+
Blue would be O/O,p+/p+
Brown would be o+/o+,P/P
is that right?

I would leave the brow egg shell gene trait as unknown polygenic and don't assign any symbolic genetic name or number.

Source: https://academic.oup.com/ps/article/94/10/2566/2077496 (Genetics of Egg Color section)
Summarizing the genetic work conducted, it can be concluded that the genetics of the brown eggshell color in the laying hen has not been studied sufficiently to understand the process of shell pigment synthesis in the shell gland.

 

[Rose Quartz]

I would leave the brow egg shell gene trait as unknown polygenic and don't assign any symbolic genetic name or number.

Source: https://academic.oup.com/ps/article/94/10/2566/2077496 (Genetics of Egg Color section)
Summarizing the genetic work conducted, it can be concluded that the genetics of the brown eggshell color in the laying hen has not been studied sufficiently to understand the process of shell pigment synthesis in the shell gland.

you mean just leave it out? it isn't something that would be visible to the user, gene wise. it would more be used as a way to guess what color egg might be produced from the colors that a person has.

 

[Cyprus]

you mean just leave it out? it isn't something that would be visible to the user, gene wise. it would more be used as a way to guess what color egg might be produced from the colors that a person has.

x2
That's the exact purpose of it.
In order for the calculator to predict the result of a cross, this information is needed.

 

[Rose Quartz]

UPDATE POST(hope I don't break anything)

Thanks! I've done the silkie rooster base, and the silkie hen base. It would be great if you could help, I'm working on Orpingtons now. You can draw bases for any breed you want and colour them in! (Maybe try start with the more popular breeds)
Here's the silkie bases-
View attachment 1432240
Rooster above

View attachment 1432242
Hen above

View attachment 1432277
This is the best I can do as of now
It's a sumatra

We should also try drawing our illustrations using templates. Using Adobe Illustrator is also a must for quality purposes. Here is a Blue Andalusian done in Illustrator, you can see it is not pixely
View attachment 1432394

I'm going out to get Ice Cream soon.
Here is the spreadsheet that I am working on; feel free to inform me if something I have written down is wrong.
https://docs.google.com/spreadsheets/d/1q8uhGbj5yJeitrkyC7Vc7RpgzPlFgmMIcpkWh_KbxWE/edit?usp=sharing
For all you breed enthusiasts out there, if you know the correct skin and eye color of a breed please let me know. I am finding that to be the most difficult information to find.

I think we could eventually add birds outside the Standard like European and Australian Standard birds, but mutts seem like too much complicated messy mess mess.

I can't speak for certain on that. I'm not the OP and I don't wish to take over @Feather Hearts idea.
To my understanding, the idea is to create a calculator in which the user can select a parent breed or cross and cross that parent with another parent. The parents could be of two separate breeds. The intention is so that the user can see what the possible outcomes are for the offspring.
So, in summary yes, there should be genetic presets for each breed. As to whether or not each breed will have the genetic presets of each color variety I do not know. As of now, I am thinking of making presets for each breed, and within that breed each SOP recognized color variety so that the user can select a parent breed with a specific color variety.

Of course, to keep in line with the original idea, there would have to be an option to select parent birds with certain color traits or patterns that are not connected to a set breed so that a user can cross two parent birds with different genotypes to determine offspring possibilities in terms of color and pattern.

My spreadsheet, as of now, is taking note of physical traits (excepting color; that genetics will be taken down later independent of breed) for each breed so that we can determine what will result in crossing different breeds, I.E # of toes, skin color, eye color, crested, muffs, beards, etc

I will not be including a preset of "Easter Egger" for a parent bird due to unpredictable genetic diversity. However, the user can create an Easter Egger offspring, and select that offspring to continue with.

So we could have calculated results of everything but color, and with color we could have specific examples that members could submit, whether or not the same breed? You could have more than one example of course.

For now, the American SOP. It is the most widely used and, seeing as most of our member base is American, it makes far more sense to start there before we even begin to think about branching out.
(It also helps me actually contribute to this program, to begin with, because I only know the American SOP)

I think that's a good idea. A side view picture clearly showing the legs, feet, comb, beard/muffs if applicable and tail plumage for roosters as well as correct conformation.

This is something to be thought on. It may be harder than anticipated to get correct photos from owners.

No clue. Guess I'll cross that bridge when I get to it.
Hybrids such as commercial birds like stars, isa browns, cinnamon queens, and production red will not be included.
I suppose for breeds like that we could integrate a feature called a "hidden gene". Such that if a white leghorn were to be crossed with whatever, half of the offspring would be white (or whatever would become of having 1 copy of dominant white) and the other half would be labeled as "unknown" with the explanation of the hidden gene which cannot be determined. Make sense?
If the user knows what their bird is hiding, they can add the gene/s to their heart's content.

Yes. True bantams will be listed as bantams. Breeds that have both standard and bantam will just be listed as a breed with no option for bantam unless the bantam version has a color or pattern variant not found in the standard.

Alright, I'm going to head to my genetics research lab (LOL) and figure out a couple things there...thinking of adding tail shape as a gene so that you can see what would happen if you crossed a 35 decree tail with a full blown 10 in long tail

Yes, do that. I actually want color genetics on a different spreadsheet.
Organize it however you want, just make sure you cover base color, lacing, barring, Sex Linkage etc. As well as what is dominant, recessive, co dominant, allelic, etc.

Original cross
Short tailed RIR Male Longtailed Red DW Leghorn Female
View attachment 1434162
Result is a Incompletely Longtailed bird (which was exactly what my bird was)
View attachment 1434166

Well, the difference between the sickle tailed and the long tailed was tail structure. Leghorns actually show tail feathers while RIRs, Wyandottes, and Plymouth rocks all show just a bunch a sickles.

Long tailed
View attachment 1434179
Sickle Tailed (or short tailed)
View attachment 1434180

Hey, @Cyprus , is there any way you could make the google sheet editable so I could help make the process faster??

...it would probably become too chaotic

That's all
Are you using the standard's index?

For most of the breeds, yes. Some of them we are adding if they are not in the APA but a fair amount of people have them.

walnut = RRPP, RrPP, RrPp
rosecomb = RRpp, Rrpp
single = rrpp
pea = rrPP, rrPp

I don't remember who it was, either.
You are right; the coder will need all of the breed and genetic information before they can start. That's because they have to code groups, variables, arrays, objects and ID's for each of the above before they can really get this thing going. Without the genetic info it can't really begin.

Awesome!
As far as the code goes, I know how the layout should be done to make this thing work. I just don't speak the language, so I don't know all the little important details.

I've already kind of figured out how to make the genetic presets for the breeds and the list of colors. I haven't yet figured out how to actually make it calculate a cross if X is dominant over Y excepting Z blah blah blah.

Here is what I came up for the genetic makeup of the Rhode Island Red:

This is only the custom genes associated with the bird
E - Wheaten (This choice determined if the hens were to have partridge feathering patterns or wheaten)
Co - Co/Co columbian (Gene which determined the base design for the RIR pattern)
Mh - Mh/Mh red (Obviously the red)
S - s+/s+ gold (If Silver were in it it would overthrow all the other coloring like the Red)

Hey everyone, fascinating discussion!! I love seeing our members getting passionate about stuff like this and working together!!!







I didn't read through the entire thread, and a LOT (most) of the stuff around breeding is way over my head, but I wanted to add my 2 cents:

1. We don't want to copy anything that others have already done. If we can create something new that's different / better, then I'm game to support it!
2. It would be awesome if the community could come together and make this happen (design, coding, etc.), but in the event that we don't have the people / resources within the community, BYC is happy to help where we can.
3. Ideally, the members would come together to create the idea, framework, process/workflow, design, data, calculations, etc. and then we (BYC) could find someone to code it all up (example, into JavaScript) to run on BYC. I even wonder if building a working version in Google Docs / Excel, would make it much easier for a developer to then code in a web-based version?

So, keep up the great work, and keep me posted on how BYC can help!

Sounds great to me!

When I'm designing new web-projects I often try to find a relatively cheap/easy way to do a "proof of concept". Sometimes that involved drawing out the individual pages in Photoshop, building processes in Excel / Google Docs, etc. Then after using those to figure out the look / flow, I have it build into a website / app.

Unfortunately, I have ZERO experience with genetics / breeding, so I'd have to rely on y'all to figure that out

I guess the silver-lining to me knowing nothing... if y'all can put it together in a way that I understand it, then anybody (developers, users, etc.) should be able to figure it out too!

Copy that!
We've already got a spreadsheet going that will cover the physical traits of the breeds going into the calculator. After that, we will be working on making another spreadsheet that covers the relation of color and pattern genes as to what is dominant, recessive, allelic etc.
There is also a work in progress to figure out egg color genetics.
By the time we're done, it should be easy to follow The hope is that the average user, who may know nothing about genetics, can take two (maybe more) different breeds of different color variations, get a clearcut result and have the result clearly explained to them so that they can understand where the traits in resulting offspring came from.

uhhh..... not sure if I'm doing this right... I had to publish it to web right. and then just put this here?

https://docs.google.com/document/d/...C_yKI5N7NL1xylfTiZ61GykuxCDHGCi6Z4vHSW4b9/pub

https://docs.google.com/document/d/11aCxfkKJPmvTb3PffoDCRO1X9F3YiUt-Iu5wem2u80g/edit?usp=sharing

Here's the helpers list:
https://docs.google.com/spreadsheets/d/1NW3oCr4v8zqhCbQUmSfUeOMI6di02SDz5bcjZjtPK5c/edit?usp=sharing

This wee (2 month old) pair of Quail D'Anvers is showing signs of the newly discovered genes
View attachment 1434718 View attachment 1434719

I am adding APA recognition and maybe varieties

Varieties would be a good idea. This way when that option is coded for the calculator, we don't have research again what varieties each breed comes in.
Eventually, each color variety should be coded for independently so that the user can select it in a dropdown for a blank template bird regardless of breed. If that makes sense.

on a happier note I found this:
"
Pink, Plum, Purple, and Gray

Current research acknowledges only two base shell colors: white and blue. However, pink eggs are common among Easter Eggers, purple or lavender eggs sometimes result from barnyard crosses, and Croad Langshans lay plum colored eggs. While it may be that a pink pigment can permeate the shell (see this forum discussion), pink coloring usually results from the bloom or cuticle which is a protein-like mucous coating applied by the hen’s reproductive tract just before the egg is laid which protects the egg from bacteria. This is why it is best not to wash clean eggs; washing removes the protective cuticle.

This cuticle, when applied over a white egg shell, creates a pink-colored egg. Just as thicker layers of protoporphyrin result in a darker brown egg, thicker layers of bloom result is a darker plum-colored egg as in that of the Croad Langshan (a breed which was actually used in the development of the Marans.) Gray appears to be the result of a thick layer of bloom over a blue or green egg."

https://www.communitychickens.com/all-about-egg-color/

Egg on TOPView attachment 1434937 View attachment 1434939 View attachment 1434940 View attachment 1434941

Australorp
View attachment 1435044 View attachment 1435045

Orpington
View attachment 1435046 View attachment 1435047
Isa Brown
View attachment 1435048 View attachment 1435049
Cinnamon Queen
View attachment 1435050 View attachment 1435051

first thing I clicked on. this first post is HUGE!!! it covers a lot of genetics of feather colors. and though I didn't read it it looks pretty clearly laid out!
https://www.backyardchickens.com/th...reading-updated-nov-13th.343605/#post-4177300

the OP hasn't been on BYC for 2 years.

"the inner shell ( mammillary) same color as outer shell layer (palisade)."
I've finally tracked down the technical terms for the inner and outer shell.

If it's alright with you guys, I'm going to start another spreadsheet.
This spreadsheet will be used for the genetics controlling physical characteristics such as comb type, leg color, eye color, earlobe color, number of toes, crested/muffed/bearded, silkied, vulture hocks, and hen feathering.
For now, I will be the only one working on this spreadsheet.

I am 99% sure now that the longer an egg sits the darker the inside shell becomes.
Don't know if this will help you or not...but I will do an experiment.
Will probably take a month to complete.
Starting today.

Forgot to mention that I'll also be adding the genetics controlling skin color to the spreadsheet.
I should be able to finish the comb genetics by the end of the day.

interesting bit of info that might be useful to know.
human
male:XY Female:XX

Chicken
Male: ZZ Female: ZW

it is the female genetics that determine male or female in chickens.
also the W chromosome is smaller than the Z chromosome. which is what affects the sex linking.

ex: female barred rocks have a single copy of the barring gene. it is attached to the Z and not the W.

^u^

I wish. the site A4R just shared has the ones for feather coloring http://www.edelras.nl/chickengenetics/mutations1.html

So after sorting through a lot of information I've never had to sort before.... grand total
White legs=W+/W+Id/Idewh/ewh
Slate= W+/W+id+/id+e+/e+ carrying white
Slate= w/wid+/id+e+/e+ carrying yellow
Yellow legs=w/wId/Idewh/ewh(Just so you know the e gene is indeterminate here.)
Willow legs=w/wid+/id+e+/e+

GENES WITH VISIBLE EFFECT AND THICKNESS
OR EXTERNAL PIGMENTATION OF EGGSHELLS
Among 12 loci studied in one population, two, concerned
with plumage color, show an association with thickness and external
pigmentation of eggshells : Pullets with extended black compared with
restricted black plumage (E locus) and pullets with colored (ii) vs non-black
plumage (Ii) lay eggs with significantly thicker and more intensely pigmented
shells. A similar but less marked tendency seems to be associated, for shell thickness, with two other plumage color loci (C and S).

yep A4R you're gonna have to figure out the E thing.

Im giving up for tonight. I think ive made pretty decent progress. Im finally finding some of the more technical stuff. ive got 8 of the genes for brown shell named now too. Although its more the expression of the different chemicals that are being referred to and used. The brown color has actually been found to be in the shell 80 - 87% of the pigment, and the rest in the cuticle.

White legs=W+/W+Id/Idewh/ewh
Slate= W+/W+id+/id+e+/e+ carrying white
Slate= w/wid+/id+e+/e+ carrying yellow
Yellow legs=w/wId/Idewh/ewh
Or Yellow legs=w/wId/Ideb/eb
Or Yellow legs w/wId/Idey/ey
so yellow legs are ewh if base color is wheaten, like buffs and wheatens, and it is eb if the e gene is partridge.
And the ey is recessive wheaten.
Id (melanin inhibitor) allows clear yellow legs on E and ER birds.
So yellow can also be w/wId/IdER/ER! Or maybe even w/wId/IdE/E!
Willow legs=w/wid+/id+e+/e+
Guess what else? Barring inhibits pigment in the legs of black and birchen birds as well. Sometimes barring can dilute black pigment to white. So we don't need the Id gene! Id/Id gets thrown out the window!
And blue dilutes dark slate to a blue color! So everything we know about leg color gets thrown out the window! I'm so confused about this now. How will we link everything together correctly? Is there a documentation of how each gene affects melanin?
Edited. I think Sylvie knocked sense into me. One can only read genetic code for so long till she gets herself knocked in the head.

• • 

E-locus (aka MC1R)
« on: March 08, 2015, 01:54:45 PM »

http://www.edelras.nl/chickengenetics/mutations1.html#gen_mut_elocus


The E locus Chicken/Down Color Pattern
Quote
The E locus alleles produce the base primary colour/patterns to which varieties are build upon.


Each Ameraucana variety is based on an e-locus gene. Since birds get a gene from each parent it is important that the pair of genes at the e-locus (location of the "e" genes) are the same. There are at least 9 e-locus genes, but the main ones that are associated with Ameraucanas, in order of dominance are...
E = Extended black, sometimes just referred to as Extended
ER = birchen aka crowwing
eWh = dominant wheaten
e+ = wildtype, normal or sometimes duckwing
eb = brown, was also called partridge (ep)
ey = recessive wheaten, "y" stands for Yellowish-white chick down

Here are some of the varieties that can be built from these foundational genes...
E = black, white, lavender, blue, splash
ER = brown red, blue, splash, birchen, lavender, white, black
eWh = buff, wheaten, blue wheaten
e+ = silver
eb = partridge, buff
ey = wheaten, blue wheaten, buff

I've underlined the varieties that I think are best based on these e-locus genes. Note I don't think blacks and blues should be based on the same e genes, so they shouldn't be bred together as most of us have done in the past. To get the best blacks they should be based on E, but the best laced blues may be based on ER.

Mike Gilbert replied...

EDT: 'Splains why Kippenjungle never accurately did Buff...

It says that 23 have been found. There could be far fewer significant ones...

I happen to have chickens that have red and white earlobes. I don't think you're going to be able to do that one accurately. (Maybe make "leakage" notes?)

Silkie feathering. Autosomal recessive. (h/h) normal feathering would then of course be (h+,h+)

Yea...here is a picture of the best Partridge Rock Rooster I had...he sure looked like the fittest, but...
View attachment 1436290

Henny feathering is autosomal incomplete dominant. Hf/Hf One problem. What does heterozygous henny feathering (Hf/hf) look like?

Now that I think about it, it doesn't matter. It will look the same in the calculator. But we could put a footnote for the offspring, saying that they could have only "partial" henny feathering.

I appreciate your efforts on this matter, I would like to point out a few things, I would appreciate if you type the genetic nomenclature in the right way: Dominant genes will take precedence over recessive, dominant genes first letter will start with capital letter, recessive genes in lower case, the + sign means the gene is of a wild type background and currently found on Red Jungle Fowl so not a mutation of what is currently found in wild RJF. Commas and spacing, please use them to separate the allelic pair from the rest of the genetic make up, for example a red jungle fowl with slate shanks is described as. e+e+, W+/W+ id+/id+(male)

Clear White Shanks
W+/W+, Id/Id(Id/- for females) based on any e allele(E, ER, e+, eb, eWh, ey) W+/w will also display clear white shanks.

Clear Yellow Shanks
w/w, Id/Id(Id/- for females) based on any e allele(E, ER, e+, eb, eWh, ey)


Slate Shanks of any shades(as to reduce any other plumage diluting factor that will enhance or dilute it's effect but not negate it entirely)
W+/W+, id+/id+(id+/- for females) based on any e allele(E, ER, e+, eb, eWh, ey) W+/w will also display slate shanks.

Willow Shanks of any shades(as to reduce any other plumage diluting factor that will enhance or dilute it's effect but not negate it entirely)
w/w, id+/id+(id+/- for females) based on any e allele(E, ER, e+, eb, eWh, ey)

The only reason Barring has any effect on shank color is because it's linked to the Id(dominant sex linked dermal inhibitor) by like about 11 map units(Centimorgan) on the long arm of chromosome Z, that means that about 90% chance of a barred bird carrying Id therefor clear shanks, but with large enough breeding one can produce B, id+ recombinants


Not only blue, but dominant white will dilute the shank colors, but not so much as to negate the effect..


So I suggest to keep any Inhibitor or enhancer away from the calculator and obviate the e allele from it, just to keep it simple, W+/W+ id+/id+ will produce slate shanks(the shade is of no concern), w/w id+/id+ will producer willow shanks(the shade is of no concern).. quite simple if you ask me.

I can't find the abbreviation for brown egg shell color. I did however find this:

https://www.ncbi.nlm.nih.gov/pubmed/26240390

the brown pigment is applied through the whole shell.

huh.... maybe what we can do if we are going to stay away from inhibitors and enhancers for the egg shell, is make it only for the 3 main colors and have a note that it's possible for any egg to have a pink color to it.

Yup. I was thinking of cropping the background out and changing out for white and add an after effect shadow under the bird

We're going to have to ask permission for the photos if they are not our own...

because of the variation in the egg shell color's being able to see them all against the back ground easily will require a gradient color background. will it be easy to see white feathers on a white background, and slate legs on a grey background? gradient is probably the way to go.

https://www.backyardchickens.com/threads/genetics-calculator-chat-thread.1253850/

http://www.aviculture-europe.nl/nummers/09E03A06.pdf

leg color and skin color influences some earlobe colors.

aside from a possible link with uric acid levels there doesn't seem to be any genetic link with earlobe color and egg color.

I think I'm done with looking into egg genetics. here's a link to my spread sheet:
https://docs.google.com/spreadsheets/d/1OOjHH5UaHbd4qoRNPF0jvDu4g26H42NZWdK403pCX8w/edit?usp=sharing

feel free to copy and paste it. so you've got a copy.

let me know if it's not exactly what you're looking for, I do have other stuff that could be added, like the blue Oo, I just didn't want it to look like the zinc chelate was only in Oo, it's a secondary chemical to Biliverdin, that's all.

I could do something like different gene expressions if that's more what you're looking for, showing the different outcomes from crossing egg colors. maybe incorporating the egg shell color pictures to the spreadsheet if that's possible.

uh.... except the brown is co-dominant, more like, Pp/Pp if that makes any sense...

the way I intended to write it would be:

o+/o+ = white
o+/o+, Pp1 = light brown
o+/o+, Pp2 = slightly darker brown
o+/o+, Pp7 = medium brown
o+/o+, Pp13 = marans dark brown

O/O = Blue
O/O, Pp1 = light blue-green
O/O, Pp2 = slightly darker blue-green
O/O, Pp7 = medium blue-green
O/O, Pp13 = Olive egger

O/o+ = blue, or lighter blue
O/o+, Pp1 = light green
O/o+, Pp2 = slightly darker green
O/o+, Pp7 = medium green
O/o+, Pp13 = Olive egger

View attachment 1436697

the brown color works differently from the blue and white it works with them instead of completely canceling them out.
I know that each gene isn't contributing the exact same amount of pigment, but breeding can result in lighter or darker eggs based on what the parent stock has. So my brown numbers are more just a way to say how much brown pigment has been expressed.

d'Anvers. Speaking of them.....
Too much wattle but his type is just fabulous! View attachment 1436763

For everyone writing genetics; do whatever you gotta do to have it make sense to you. But somewhere in there use the words of "dominant, recessive, allelic, etc" and "Dominant over...... Allelic with....." Whatever applies.
We need to simplify it like that so whoever codes can follow.

COCHIN TEMPLATES:
Hen:
View attachment 1436794
Rooster:
View attachment 1436795

W+/W+, Id,/Id white
W+/W+, id+/id+ slate
w/w, Id/Id yellow
w/w, id+/id+ willow
Footnote: this is simplified genetics and can be affected by plumage color. E and ER cause the shank coloration to be darkened.

Spoiler: What this all means

I would like there to be a footnote that says what I wrote above.
There should be two locus thingies. One for the W gene (simple dominant and recessive) one for the Id gene. (Sexlinked. Hens only get one copy so Id/- for them.)
Yellow father plus slate mother equals white legged chicks.
The other way around makes sex-linked chicks-slate legged pullets and white legged cockerels.

Simplifying for the finished product.

Pink eggs. Inside. I guess my d'Anvers have that gene. What about brown eggs with white speckles?View attachment 1436837

Wow that's so cool. I'm pretty convinced at this point that the pink is just a variant of brown, and that's what I intend to put in the notes.
check this video out when you get a chance.

eta: the white speckles are likely the cuticle/bloom

View attachment 1436880 View attachment 1436881 Leghorns!

.... I'm getting sucked back into this theorizing on egg shells thing... I wonder if egg shells are lighter not because they are using less pigment, but because the pigment is being stretched through the whole shell, instead of just on the outside, and that's why darker eggs (brown) seem to all be whiter on the inside than the lighter brown ones.

I would leave the brow egg shell gene trait as unknown polygenic and don't assign any symbolic genetic name or number.

Source: https://academic.oup.com/ps/article/94/10/2566/2077496 (Genetics of Egg Color section)
Summarizing the genetic work conducted, it can be concluded that the genetics of the brown eggshell color in the laying hen has not been studied sufficiently to understand the process of shell pigment synthesis in the shell gland.

you mean just leave it out? it isn't something that would be visible to the user, gene wise. it would more be used as a way to guess what color egg might be produced from the colors that a person has.

​

 

[Amer]

Wow that's so cool. I'm pretty convinced at this point that the pink is just a variant of brown, and that's what I intend to put in the notes.
check this video out when you get a chance.

eta: the white speckles are likely the cuticle/bloom

Sorry. I should have said pinkish cream. But either way, the brown is inside.

 

[BlackHackle]

UPDATE POST(hope I don't break anything)





















































































































































​

Perfect!

 

[Amer]

.... I'm getting sucked back into this theorizing on egg shells thing... I wonder if egg shells are lighter not because they are using less pigment, but because the pigment is being stretched through the whole shell, instead of just on the outside, and that's why darker eggs (brown) seem to all be whiter on the inside than the lighter brown ones.

Same

It honestly fascinates me how people can determine genes and what causes speckles etc. Genetics have always been interesting to me and poultry genetics is something I'd like to study on my own sometime.

same

you mean just leave it out? it isn't something that would be visible to the user, gene wise. it would more be used as a way to guess what color egg might be produced from the colors that a person has.

I agree with Rose Quartz. This is just the egg color results of a cross, not so much a gene mapping or something.

 

[Dawnclucks22]

As for the spreadsheet, I can check for the breeds I have and update it as soon as I can!

 

[nicalandia]

I agree with Rose Quartz. This is just the egg color results of a cross, not so much a gene mapping or something.

I understand, but I don't believe we should speculate on the gen called P or P+ P1, P2... since the P and p+ have been already assigned to Peak comb(P) and single comb(p+), I would try to keep it as simple as possible, for example white egg breed crossed with blue egg bree will yield light blue eggs, white eggs crossed with brow eggs will produce tinted egg and so for, but not assigning a specific genes that have not been assigned yet due to the highly complex nature of brow egg shell trait

 

[Amer]

I understand, but I don't believe we should speculate on the gen called P or P+ P1, P2... since the P and p+ have been already assigned to Peak comb(P) and single comb(p+), I would try to keep it as simple as possible, for example white egg breed crossed with blue egg bree will yield light blue eggs, white eggs crossed with brow eggs will produce tinted egg and so for, but not assigning a specific genes that have not been assigned yet due to the highly complex nature of brow egg shell trait

I agree with this though.