Reptile & Amphibian Forums

Still trying to get the hang of this genetics stuff. Never sure if I have it figured right.

Thanks!
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"Kira"

Snow is a combination of amelanistic and anerythristic (anery A).

Blizzard is claimed to be a combination of amelanistic and charcoal (anery B).

Snow is normal at the charcoal locus, and blizzard is normal at the anerythristic locus.

amelanistic x amelanistic --> all amelanistic
anerythristic x normal --> all heterozygous anerythristic
charcoal x normal --> all heterozygous charcoal.

Combine the results, and you find that all the babies are amelanistic and are also heterozygous anerythristic and heterozygous charcoal.

If any snows turn up from the mating, then the blizzard is also heterozygous anerythristic.

Paul Hollander

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Check Out My Albums

1.0 Ball Python "Aragorn"
1.0 Kenyan Sand Boa "Gimli"
1.0 Saharan Sand Boa "Frodo"
0.1 Rough-Scale Sand Boa "Arwen"
0.1 California Kingsnake "Gentoo"
1.0 Mexican Black Kingsnake "Indigo"
1.0 Snow Corn snake "Chile"

0.1 Australian Cattle Dog/Pointer
"Kira"

I have a normal female and an amelanistic male. They both must be het for anerythrism because last year they ended up with 5 anerythristic babies (out of 23). The only one of these whom I still have contact with (sold to a teacher as a classroom pet at my son's school) has developed a small amount of yellow on her neck. Is this anerthrism A or B? Does this mean both parents are het for A or B or could it be one of each? Or am I totally confused? What does a pairing of Anerthrism A and B show?
Thanks
Corinne
dragonfly@w-link.net

I think they had to both be het Anery A (A has the yellow).

Someone correct me if I'm wrong.

I just found this program which is helping me a bit:
home.comcast.net/~spencer62/cornprog.html

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Check Out My Albums

1.0 Ball Python "Aragorn"
1.0 Kenyan Sand Boa "Gimli"
1.0 Saharan Sand Boa "Frodo"
0.1 Rough-Scale Sand Boa "Arwen"
0.1 California Kingsnake "Gentoo"
1.0 Mexican Black Kingsnake "Indigo"
1.0 Snow Corn snake "Chile"

0.1 Australian Cattle Dog/Pointer
"Kira"

You are right, both corns must have been het for Anery A, which is more common. Basically there is more than one form of anerytherism. There are 3 I believe and all are incompatible with one another:
Anery A (referred to simply as Anery) some yellow
Anery B (Charcoal) little or no yellow
Anery C (Caramel) more yellow
(of course there are exceptions as always)

When combined with Amelanism:
Anery A plus Amel = snow
Charcoal plus Amel = blizzard
Caramel plus Amel = butter

However, there is only one form of amelanism but appearance varies greatly (candy canes to sunglows to reverse okeetees etc)

Here is where it gets really complicated....there are apparantly three 'proven' forms of hypo (hypo 1, 2, and 3?). BUT..I would not be at all surprised if more incompatible forms pop up in the near future.
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Sincerely,
Jason
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I think that going by the presence of yellow has proven to be less reliable as an indicator of the presence of anery A as opposed to anery B in corns than was initially suspected. There are MORE anery A animals with yellow on them than there are of anery B animals, but there are LOTS of anery B animals (breeding trial proven) that have substantial amounts of yellow on them, and there are several anery A animals that have little to no yellow.

I think the better predictor is the relative coloration darkness when comparing the saddles to the ground color. Aneries tend to be more stark in their coloration, have definitive differentiation between these two areas, whereas charcoals are much more muted in tones, with less differentiation between saddle and ground coloration. Charcoals were so named because they looked like little smudged pieces of charcoal right out of the egg, but aneries will often look like black versions of candycanes.

Although this distinction between the two main forms of anery are more difficult to determine as the specimens in question age, it still seems apparent in MOST individuals. Even so, breeding trials are sometimes the only way to tell for certain.
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Darin Chappell
Hillbilly Herps
PO Box 254
Rogersville, MO 65742

This is Zeta (Mom normal looking, Dad amel) at 9 months. SHortly after this picture was taken she developed some yellow on the side of her neck. What is she?
Corinne
dragonfly@w-link.net
PS I'm still trying to figure out how to post images here, so if this doesn't work forgive me.

That didn't work.
try
http://members.w-link.net/~dragonfly/snakepic.html
(Can someone explain to me how you post pictures on this forum)
Corinne
dragonfly@w-link.net

You would think I had learned my lesson about identifying snakes by pictures, but apparently not ...

Your snake looks very "anery A" to me, and a pretty one at that!
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Darin Chappell
Hillbilly Herps
PO Box 254
Rogersville, MO 65742

I agree w/Darin...its hard to really tell anything from internet pics. I also have to stop replying to messages so late at night when I can't fall sleep.lol. Darin is right about the amounts of yellow not being a great indicator behind anery types as I had mentioned at 3 am.lol....please don't listen to my explanation.. Also, here is how you post pics....

http://members.w-link.net/~dragonfly/snakepic.html
This does not always work with all photo hosting sites (like Yahoo or AOL photoalbums for instance...it won't work).

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Sincerely,
Jason
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0.2 Green Tree Pythons
2.2 Bismark Ringed Pythons
2.3 Ball Pythons
1.1 Brazilian Rainbow Boas
1.1 Argentine Boas
0.1 Solomon Island Ground Boa
1.2 Hogg Island Boas
1.1 Sonoran Desert Boas
2.2 Nicaraguan Boas
7.8 Cornsnake morphs
1.1 Northern Pine Snakes
2.2 Bairds Rat Snakes
1.2 White-Sided Black Rat Snakes
My Website & Pics (click here)

your website link for hosting photos is one that won't work on ks.com. IF you switch to one like photobucket.com, you can click on (Tools and Toys) at the bottom right of the window that you type in for posting messages. It will show you how to write the code for posting a pic...it will look something like this (but without the spaces
[ img ] http://forums.kingsnake.com/images/new.gif [ /img ]
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Sincerely,
Jason
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0.2 Green Tree Pythons
2.2 Bismark Ringed Pythons
2.3 Ball Pythons
1.1 Brazilian Rainbow Boas
1.1 Argentine Boas
0.1 Solomon Island Ground Boa
1.2 Hogg Island Boas
1.1 Sonoran Desert Boas
2.2 Nicaraguan Boas
7.8 Cornsnake morphs
1.1 Northern Pine Snakes
2.2 Bairds Rat Snakes
1.2 White-Sided Black Rat Snakes
My Website & Pics (click here)