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MLP:FIM Pony Breeding Chart 1: Purebloods by LadyFoxling MLP:FIM Pony Breeding Chart 1: Purebloods by LadyFoxling
EDIT: According to MLP:FiM episode BABY CAKES, this chart and its sequel chart (mixed blood pairs -- generation skips) are COMPLETELY SHOW ACCURATE except possibly for alicorns (no proof at current time, but it still seems likely that alicorns can bear with anypony from the main three types at least) :dummy:

EDIT: Added possibility of triplets produced from alicorn pairs. I am fully aware that fertilized eggs don't split in thirds for triplets, I just don't have a better way to describe it at the moment and after doing two full charts of these and explaining everything in detail, I'm tired. If you know the correct phraseology for triplet eggs, cool beans, I'll change the chart if you can tell me. Just don't be a jerk in the comment section, okay? It's a freakin' children's television show. Real World limitations don't apply and hey, pobody's nerfect. The fandom is about love and tolerance, so verbal attacks on my intelligence are immature and against everything the show teaches in the first place. I did the best I could to explain it; if that's not enough for you, then do something better and show me up. Idc. I'm cool with that as long as you're having fun.

UPDATE: Included Faust confirming the ponies themselves can in fact crossbreed, for those of you insisting that they cannot. Also included some extra info for each subheading. Lastly created another chart for mixed blood ponies, which you can see here: [link] for all you Derpy x Dr. Whooves people who believe Sparkler and Ditzy Doo are their children. This second chart proves it's possible if Derpy has a unicorn in her ancestry!

---------

This chart can help you create family trees for your pony pairings--trace how traits transfer from your pairings to their children and show you what children can be produced from what kinds of pairings.

Male ponies are in BLUE
Female ponies are in PINK
Foals are in PURPLE, and are genderless (as they can be either gender)

Unicorns have RARITY HAIR and a HORN
Pegasi have RAINBOW DASH HAIR and WINGS
Earth ponies have APPLEJACK HAIR and a HAT
so that you can tell them apart

A chart of what kind of foal will be produced depending on the genetic traits of both parents.

This chart assumes that the pony parents are pure blooded unicorns, pegasi, earth ponies, and alicorns If a foal is a unicorn when one parent is a pegasus and the other parent is an earth pony, then that means that one of its ancestors MUST have been a unicorn, and that the genetic trait skipped the parents' generation and became apparent in the foal's generation. Therefore, for an example, you can still produce a pegasus from two earth ponies--but only if there was a pegasus further back in its ancestry, otherwise this would be impossibru. :iconimpossibruplz:

Genetic Chart Explained:

Unicorn + Unicorn = Unicorn
Pegasus + Pegasus = Pegasus
EarthPony + Earthpony = Earthpony

Unicorn + Pegasus = 50% Chance of Unicorn foal, 50% Chance of Pegasus foal

Pegasus + Earthpony = 50% Chance of Pegasus foal, 50% chance of Earthpony foal

Earthpony + Unicorn = 50% Chance of Earthpony foal, 50% Chance of Unicorn foal

Unicorn + Earthpony = 50% Chance of Unicorn foal, 50% Chance of Earthpony foal

Pegasus + Unicorn = 50% Chance of Pegasus foal, 50% Chance of Unicorn foal

Earthpony + Pegasus = 50% Chance of Earthpony foal, 50% Chance of Pegasus foal

---
ALICORNS (Winged Unicorns)
This is where it gets a little tricky.

Alicorns are a combination of all three pony types-- UNICORN, PEGASUS, and EARTHPONY all at once. Now according to pureblood genetics, the original three above (earthXearth, pegasusXpegasus, unicornXunicorn) this means that an alicorn could theoretically mate with any pony type and produce a foal. However, the alicorn would act as the second unicorn when mating with a unicorn, the second pegasus when mating with a pegasus, or the second earth pony when mating with an earth pony, because it possesses all three types of pony magic. The other two types of pony magic would lie dormant, but not be all visible at once in the foal.
Therefore:

Alicorn x Unicorn = Unicorn
Alicorn x Pegasus = Pegasus
Alicorn x Earthpony = Earthpony

Because basically in each pairing, the single-type pony's genes would match with the same genes of that type which the alicorn possesses, and the other two magic traits the alicorn possessed would lie dormant instead.

With Alicorn x any other pony type, the type of pony the second pony is would determine the nature of the foal because it would present a 100% match gene-for-gene, while the other two pony traits would lie dormant as they would only be an unmatched 50%.

Alicorn x Alicorn = Alicorn

^ This is the only situation in which another alicorn could be produced from a pairing, because both alicorns would be matching each other trait for trait.

In other words, SINGLETRAIT + SINGLETRAIT = SINGLETRAIT, whereas SINGLETRAIT + DIFFERINGTRAIT = 50/50 CHANCE OF TRAITS.
In an alicorn x alicorn pairing, it would basically be unicornXunicorn, pegasusXpegasus, and earthponyXearthpony all at once, and each trait would then be present in the foal.

We can safely assume that Alicorns can indeed mate with all ponies because of Prince Blueblood's relation to the alicorns by word of Goddess (A.K.A. Lauren Faust) who said he is the "great great great great great great great great great great great (and probably even more greats) nephew on Celestia's and Luna's mother's side, about 52 times removed, roughly speaking." Since he is a unicorn and not an alicorn, meaning he must have unicorn blood in him along with alicorn blood. Since the name "BlueBlood" literally means to have Royal Blood, it is also safe to assume he is directly related to the alicorns and not adopted into the family as some may claim. Particularly including the fact that this is a children's show, it is difficult to believe that he was adopted into the royal line or that an ancestor of his was adopted into the royal line, as this would certainly have been explicitly mentioned somewhere in the show as it would be a plot device for sure. However the possibility of adoption was not ever stated or even implied, and along with his name literally meaning Royal Blood, we can assume he is in fact a descendent of alicorns who does not carry wings or lay claim to earth pony magic.

ZEBRAS
I considered adding zebras to the chart because of Zecora. However, because we do not see any striped pegasi or striped unicorns, or even any Zebra x Earth pony pairings, it is difficult to say at this time whether Zebras can even mate with ponies or alicorns at all. I am not going to hazard any guesses at this point. I think what I have in the chart is logical and feasible however.

DRAGONOSKIS
Because dragonoskis are just so different from earth ponies, unicorns, pegasi, and alicorns in every way, I'm going to say that it's highly unlikely that a dragonoskis could ever mate with any pony type and reproduce successfully.
This does not mean that Discord could not mate with any pony type, it only means that he and his partner-of-your-choice could in all likelihood never reproduce, simply because they are too far removed in terms of animals. You don't see mice mating with eagles, because they cannot bear children together, and so I think it would be with a dragonoskis and a pony.
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:iconangelpichu1:
angelpichu1 Featured By Owner Dec 22, 2014  Hobbyist Traditional Artist
ok, so  i'm relieved to know that both my OCs (muffin mix, who actually had no ancestors because, well, it's complicated but he was a muffin, but turned pony through alicorn magic, and bubblegum twist who had no ancestors either because she was a mew from pokemon but permanently turned pony by complete accident...i just realised my OCs are WEIRD) that are both unicorn and earth, respectively, could, according to cannon, bear 2 unicorns and 2 earths.
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:iconladyfoxling:
LadyFoxling Featured By Owner Jan 11, 2015  Hobbyist General Artist
Your oc's sound hilarious and awesome (: and yes I do believe that that would work out!
Reply
:iconangelpichu1:
angelpichu1 Featured By Owner Jan 12, 2015  Hobbyist Traditional Artist
and it actually has been ^^
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:icongojira5000:
Gojira5000 Featured By Owner Sep 11, 2014  Hobbyist Digital Artist
I've always wondered if the cause of an alicorn was something like a gene inhibitor; if each genetic set has a code to turn it dormant, maybe alicorns are created in very rare instances of which an inhibitor prevents the "other" genetic codes from shutting off, thus producing foals with multiple traits. 

The flashbacks in Season 4 might suggest that Celestia and Luna were born alicorns (or that the animators didn't bother making new puppets for a few scenes), and from the expanded media (ie: a book), I guess I could infer that Cadance (a Pegasus) and Twilight (obviously, a Unicorn) both had the inhibitor for being an alicorn, but the inhibitor wasn't activated during conception (maybe activating the inhibitor is a very rare occurance), and Celestia merely activated the dormant mutation in the genes of both to give them a horn and wings, respectively. Though, if this is the case, the gene would have had to have been in Twilight's own bloodline for it to pass on to her, meaning that there's an alicorn somewhere on her family tree; if there wasn't, she couldn't have had the inhibitor in her genes at all; Blueblood is related, but obviously didn't have the gene activated.
There's only two "pureblood" alicorns, and one other "mutt" alicorn; so that means either A) There are more alicorns than just Celestia, Luna and Cadance for Twilight to be related to, which I find doubtful, or B) Twilight is, in some way, related to either Celestia, Luna or Cadance enough to have carried the inhibitor over. The latter seems more likely, especially since alicorns are rare, so that could suggest Twilight was a blueblood even before she became good friends with Celestia; her parents could have been aristocrats even before Shining Armor married Cadance or Twilight was coronated.

So, if we take Lauren's logic with Blueblood and use it with the inhibitor hypothesis, Twilight Sparkle could well be at least somewhat related to Celestia or Luna; since they seem to be the first alicorns known to ponykind. But this is just me hypothesizing, nothing totally concrete.
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:iconladyfoxling:
LadyFoxling Featured By Owner Dec 1, 2014  Hobbyist General Artist
Late reply; I think that is a plausible idea! Good thoughts!
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:iconlunathymewolf:
lunathymewolf Featured By Owner Aug 4, 2014  Hobbyist General Artist
ummm, i understand the fact that a normal pony parent (earth,unicorn, or pegasus) with a alicorn parent is more likely to get a normal pony magic but wouldn't it still be possible to get a alicorn (like a 25% chance or less)? I do not know if this is correct i am just saying what i think makes sense.
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:iconladyfoxling:
LadyFoxling Featured By Owner Aug 15, 2014  Hobbyist General Artist
CHART UPDATES: I haven't fixed the chart but it seems like maybe alicorns can't be born, just made? Thank Magical Mystery Cure for this confusion. Dunno what to do on that now. I'm gonna assume they could possibly come out but I just don't know how to really calculate that given the new weird way the show works. The rest of the chart should be basically fine.
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:iconzoey888vgtech:
Zoey888VGtech Featured By Owner Jun 20, 2014
Very helpful, thanks
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:iconladyfoxling:
LadyFoxling Featured By Owner Jun 23, 2014  Hobbyist General Artist
You're welcome!
Reply
:iconspitfire-thorns:
Spitfire-Thorns Featured By Owner Mar 20, 2014
I love how much work and thought you've put into this. Well done. *brohoof* 

I think all of it is entirely logical, well-thought-out and well-reasoned. And I love the idea of Alicorn x Alicorn maybe = triplets. 
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:iconladyfoxling:
LadyFoxling Featured By Owner Mar 29, 2014  Hobbyist General Artist
*Brohoof* Thanks! I did put a bit of good work into it. I saw someone who tried to do a breeding chart once where they talked about baby pony fetuses that died in the womb due to magic overload and I was like what??? No. And so I made this because that was totally messed up, and this is how real genetics tend to work out.
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:iconjokitonyukirin:
JokiTonyuKirin Featured By Owner Feb 4, 2014  Student General Artist
okay, just one question is what I need answered an THEN I'll understand it all XDDD if it was a UnicornxPegasus pairing, is it possible (because I know how human genetics work, that being, if they had the same then  they would recieve 23 traits or mixed traits from the parents) that the child could have wings and a horn, or ONLY one or the other?
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:icongabrielmcdaniel:
GabrielMcDaniel Featured By Owner Mar 18, 2014
The determination of whether they  are a Unicorn, Pegasi, or Earth pony are probably all dominant traits, therefor they could only have one or the other.
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:iconjokitonyukirin:
JokiTonyuKirin Featured By Owner Mar 21, 2014  Student General Artist
oh! okay XDD
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:iconladyfoxling:
LadyFoxling Featured By Owner Feb 4, 2014  Hobbyist General Artist
Probably only one or the other; the show now indicates alicorns are only made, not born. But there's the issue of Princess Skyla that is an ongoing question now, so we'll have to see in the future.
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:iconjokitonyukirin:
JokiTonyuKirin Featured By Owner Feb 5, 2014  Student General Artist
IN THE FUTURE!! XDDD to the future!! XDD
Reply
:iconxxsweet-tiny-kittyxx:
xXsweet-tiny-kittyXx Featured By Owner Nov 24, 2013  Hobbyist Digital Artist

 <?xml:namespace prefix = da />Oh Noes! mah brain

 

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:iconladyfoxling:
LadyFoxling Featured By Owner Jan 21, 2014  Hobbyist General Artist
Just let me do the thinking for you ;)
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:iconkerenitychan:
kerenitychan Featured By Owner Oct 4, 2013  Hobbyist General Artist
0^0 this seems helpfull
tough < < i have to say in the episode "baby cakes" the nervousness of both the cakes made it seem more like a mature joke hidden in the show ,that the younger viewers wouldn't understand anyway, that the little ones may or may not be from mr. cake at all < <......not judging or anything but just saying
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:iconladyfoxling:
LadyFoxling Featured By Owner Jan 21, 2014  Hobbyist General Artist
No, it's definitely Mr Cake's children. They would not imply cheating on marriage in a kid's show.
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:iconkerenitychan:
kerenitychan Featured By Owner Jan 21, 2014  Hobbyist General Artist
ok then just saying , i guess you have a point
Reply
:iconnightshade-warroir:
Nightshade-warroir Featured By Owner Oct 1, 2013  Student General Artist
I got a question. If an Alicorn was to be with an earth pony and they had multiple foals, would they all be earth ponies? Or is there a chance of some foal being a Pegasus/unicorn.
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:iconladyfoxling:
LadyFoxling Featured By Owner Jan 21, 2014  Hobbyist General Artist
According to new show logic, being an alicorn is potentially only possible through ascension. There's no word yet on whether Celestia and Luna ascended and were normal ponies before, or if they were born that way, so I can't be sure. Especially since there's a Princess Skyla toy that is a baby alicorn and that wouldn't make since if ponies can only be alicorns after figuring out their purpose in life and then becoming the embodiment of that purpose.

So I'm going to say that it's likely that you could get an earth pony, pegasus, unicorn, or alicorn in probably equal probability--but I would guess that the chance of you breeding out an earth pony would be higher since Alicorns do have some earth pony in them since they're a mix of the three types.
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:iconnightshade-warroir:
Nightshade-warroir Featured By Owner Jan 21, 2014  Student General Artist
I heard about that logic it's a bit confusing..

Ok thanks for clearing that up
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:iconladyfoxling:
LadyFoxling Featured By Owner Jan 21, 2014  Hobbyist General Artist
Yeah, it's definitely a point of contention. However! This is still a good chart for examples of how stuff would work in real life (= There's a companion chart linked in the description for mixed breeding if you would like to take a look at too. Either way, have fun with your pony stuff!
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:iconnightshade-warroir:
Nightshade-warroir Featured By Owner Jan 21, 2014  Student General Artist
yeah thank you very much!
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:iconladyfoxling:
LadyFoxling Featured By Owner Jan 22, 2014  Hobbyist General Artist
No prob c=
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:iconjupotmachine35:
jupotmachine35 Featured By Owner Aug 3, 2013  Student General Artist
:icontwichallengeconsider: Interesting theory, and now I wonder how changeling physiology works. . . .




:icondafuqdidijustreadplz: My brain . . . . . it hurts . . . . halp 
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:iconladyfoxling:
LadyFoxling Featured By Owner Aug 7, 2013  Hobbyist General Artist
I'd put changelings in but I'm not sure if they're compatible yet haha! They seem to be just far enough apart from how ponies are that it might not work out so well. At least, I can't envision the babies looking so great ^^;
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:iconjupotmachine35:
jupotmachine35 Featured By Owner Aug 8, 2013  Student General Artist
The baby's appearance would depend mostly on the queen's mate and probably their organs work in a different, but not too complex way then ordinary ponies..


..at least that's what I know about insect repro :iconpsychotwishrugplz:
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:iconladyfoxling:
LadyFoxling Featured By Owner Aug 8, 2013  Hobbyist General Artist
Envision how messed up the legs would be though with all those holes. Pretty unusable on a normal pony I'd imagine! Makes me a little sick to think about in fact.
Reply
:iconjupotmachine35:
jupotmachine35 Featured By Owner Aug 9, 2013  Student General Artist
Oh please, they're horses . . . it's like they can use hooves to grip objects or find some functional use for them. I'm pretty sure those holes are more of a cosmetic purpose... but maybe it's kind of gross.
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:iconladyfoxling:
LadyFoxling Featured By Owner Aug 9, 2013  Hobbyist General Artist
Nah man I mean it's like, ponies clearly have bones, but do the changelings? The thing weirding me out about it is how that would translate into a baby pony, and if they would even be able to stand and walk around. Maybe they would end up having the physiology of the mother, so it would have to be one or the other but not as much a mixture of both.
Reply
:iconjupotmachine35:
jupotmachine35 Featured By Owner Aug 9, 2013  Student General Artist
:iconlunaisayplz: Thine theorem is of great interest to us, changelings hath chitin as means of body form, organ and structure retention . . . dost thou mean these creatures hath 50-50% of thine mate's composition?



Pardon my old English, I'm just starting to practice :iconfluttershyshyplz:
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:iconladyfoxling:
LadyFoxling Featured By Owner Aug 9, 2013  Hobbyist General Artist
I would say yes, since 50% of both parents' genetics goes into the child, though the child may bare more resemblance to one more than the other. If you look at changelings and ponies, they are both clearly equine, so mating should theoretically be plausible. It is about the same with all the races of us--humans! If you have a mixed racial pair (ex. caucasian x african) the child borne is usually mixed race, bearing traits of both races. If we assume that holds true for ponies, we would want to mix the changeling features with the pony features to make something of a blend of both, with one parents' genetic traits a little stronger than the other's due to dominant genes. If we think of it that way, we want to mix the most prominant features. Let's consider an earth pony x changeling cross. The child, we would want to give holey legs, perhaps a stunted holey horn or beginning of one like a bump on the forehead, and maybe or maybe not some feeble buggish wings that may be useless for flying capability. The child may or may not be able to use magic to change its appearance for shortened periods of time, and it would (beginning the more earth ponyish half of its genetic line) be stronger and fast despite its feeble looking frame. It would also bear the bright colors of the parent earth pony, though perhaps darkened to a muddier tone because of the mostly blackish frame for its body, with stripes of bright color in the mane and tail mixed between the parents' mane and tail colors.
Of course there are numerous combinations that could genetically occur, perhaps meaning the legs would be solid and not holey at all, while the horn and wings are retained but perhaps not at all or fully usable and look to be so. My biggest problem in thinking about this is the body chemistry itself though--the holey legs, because I feel like they wouldn't support a heavy mammalian body, which I'd assume is a dominant trait for ponies that aren't pegasi.
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(1 Reply)
:icongg8helper:
gg8helper Featured By Owner Jul 1, 2013  Hobbyist General Artist
No, Alicorns would be treated as what they once were.

So let's say an Alicorn was once a unicorn and mated with a unicorn. That would make a unicorn.

Unicorn Alicorn x Pegasus = Unicorn or Pegasus

Nopony is born an alicorn...
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:iconladyfoxling:
LadyFoxling Featured By Owner Jul 1, 2013  Hobbyist General Artist
I have to update the chart because apparently princesses aren't born, they're made. Therefore, earth pony, pegasus, or unicorn are the only options.

Also, the breed is not "alicorn"
They are literally a breed known as "princess"

Twilight turns into one and what do her friends say? "You look just like a Princess"
And apparently you automatically become a Princess upon gaining the horn and/or wings? That technically makes the breed name canonically "Princess" rather than "alicorn" which is admittedly a false term in the first place, as it refers to the horn of a unicorn, and not, in fact, a unicorn with wings attached to its back.
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:iconakiraa96:
Akiraa96 Featured By Owner Jul 20, 2013  Hobbyist General Artist
No it is confirmed they are Alicorns, and Celestia and Luna were BORN not made. It is also known Cadence is the Niece to Celestia and Luna, therefore she was born as well.
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:iconladyfoxling:
LadyFoxling Featured By Owner Jul 20, 2013  Hobbyist General Artist
You're going to have a lot of fun with season four's first episodes c:
Reply
:iconakiraa96:
Akiraa96 Featured By Owner Jul 20, 2013  Hobbyist General Artist
Probably... Though I did learn I was wrong on Cadence... but still... *Shrugs*
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:iconladyfoxling:
LadyFoxling Featured By Owner Jul 22, 2013  Hobbyist General Artist
Check and mate.
Reply
:iconakiraa96:
Akiraa96 Featured By Owner Jul 22, 2013  Hobbyist General Artist
Maybe to you but not me. As far as we know Celestia and Luna were born still, and I'm still pretty sure Alicorn is cannon.
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:iconladyfoxling:
LadyFoxling Featured By Owner Jul 25, 2013  Hobbyist General Artist
Idk man it sounds like season 4 is going to let us know a lot more of the mythos behind the princess ponies.
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(1 Reply)
:icongg8helper:
gg8helper Featured By Owner Jul 1, 2013  Hobbyist General Artist
lol too much to read. XD
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:iconladyfoxling:
LadyFoxling Featured By Owner Jul 2, 2013  Hobbyist General Artist
Your loss.
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:icongg8helper:
gg8helper Featured By Owner Jul 2, 2013  Hobbyist General Artist
lol I DID read it.
Reply
:iconladyfoxling:
LadyFoxling Featured By Owner Jul 6, 2013  Hobbyist General Artist
Good on ya C:
Reply
:iconmeemie7:
Meemie7 Featured By Owner Jun 5, 2013  Hobbyist Traditional Artist
Geez, you've got this down to a science.
But, it looks so amazing and smart! And WHY CAN'T I BE AS GOOD IN BIOLOGY AS YOU!!!!
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:iconladyfoxling:
LadyFoxling Featured By Owner Jun 9, 2013  Hobbyist General Artist
I need to revise the alicorn part because apparently princesses aren't born, they're made, but ah well XD
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:iconforestspring:
ForestSpring Featured By Owner Nov 3, 2013
But what about Skyla?
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