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#631608 - 09/09/08 12:57 PM Cremino
aronoiiel
Unregistered


I've been interested in the cremino color and I was wondering a couple things

How does the cremino gene work? Is it similar to the leu gene? Is it a mutation of the leu gene? How did it end up coming about?

There should be a website that lists all the color variations and how they came about LOL that'd be nifty ^_^

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#631656 - 09/09/08 02:19 PM Re: Cremino [Re: ]
sugarglidersuz Offline
Glideritis Anonymous

Registered: 08/28/04
Posts: 14788
Loc: Cleveland, Ohio
Tiffany,
I'm sorry, but I don't have any idea about the genetics of the various colors. Hopefully Priscilla, Judy or Sheila will be along soon to answer your question...
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Suz Enyedy
:bb: Carina & Coobah
Allira & Gizmo :grey:
:grey: Picasso, Trinity Joy & Luna
:rbridge: DaisyMae; Darwin; Mareki; Mambo; Pika; Cricky; Reggie & Bobo, Pepe & Bittah


Suz' Sugar Gliders

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#631671 - 09/09/08 02:33 PM Re: Cremino [Re: sugarglidersuz]
Dancing Offline
Glideritis Anonymous

Registered: 09/10/04
Posts: 22746
Loc: 80 acres of paradise in KS
Creminos are albinos, not leucisics.

There are T+ and T- albinos. One produces the white with red/pink eyes and the other produces the creminos.
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#631672 - 09/09/08 02:33 PM Re: Cremino [Re: sugarglidersuz]
gliderlover Offline
Glider Explorer

Registered: 03/03/06
Posts: 291
Loc: houston, TX
The creamino gene does work like the leu gen. Both parents have to carry the gene. Creamino is not a mutation of the leu gene. It is related more to the albino gene. The creaminos were started by susan with flying fur ranch. She paired to gliders that had their tails injured and had a pair of creamino joeys from them. I hope that helps.
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***Courtney*

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small breeder of whitefaces, whitetips, leucistics, creaminos, albinos, and mosaics

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#631674 - 09/09/08 02:34 PM Re: Cremino [Re: gliderlover]
Dancing Offline
Glideritis Anonymous

Registered: 09/10/04
Posts: 22746
Loc: 80 acres of paradise in KS
Quote:
She paired to gliders that had their tails injured and had a pair of creamino joeys from them.


I'm sorry but I found that pretty funny and giggled over that. It makes it sound like you have to have two gliders with injured tails to have creminos!
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620-704-9109
Judge not until you have walked in their shoes and lived their lives. What you see online is only part of the story.

I could have missed the pain
But I'd of had to miss the dance


The soul would have no rainbow if the eyes had no tears.

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#631696 - 09/09/08 02:54 PM Re: Cremino [Re: Dancing]
aronoiiel
Unregistered


ah ok so thanks! So what is the T+ and T- refer to?

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#631701 - 09/09/08 03:04 PM Re: Cremino [Re: ]
kitsune Offline
Glider Slave

Registered: 10/18/03
Posts: 1889
Loc: Springfield/Eugene, OR
I have a question...is cremino:albino as platinum:leucistic? Or is it closer to platinum:grey? I know that platinum is co-dominant and cremino is not, but platinum and cremino both seem to be a dilute of the pure white color (leucism and albinism being two separate genetic mutations). Is cremino just an exclusively albino variant, in that platinum is not a variant of a specific gene, but more a color variation like mosaic?

I guess what I'm trying to say is...does platinum compare to cremino in the type of mutation it is?
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mlove Glide free :rbridge: :bb: Dimitri and Tegan :wfb: :rbridge: and right-side up! mlove

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#632257 - 09/10/08 03:41 AM Re: Cremino [Re: kitsune]
Judie Offline
Serious Glideritis

Registered: 10/25/01
Posts: 9173
Loc: Edwardsville, Kansas 66113
The process of creating melanin is simple.

Tyrosine which is a type of amino acid is converted into dopa and then into dopaquinone in the presence of tyrosinase, which is synthesized by the melanophores. Dopaqunone is later midified into melanin and deposited in the appropriate melanophores. This is the root of the terms "Tyrosine positive(T+) and Tyrosinase negative(T-) albinos.

In T- Albinos... Tyrosinase is not produced(switch is off) by the melanophores so no melanin is ever created by the melanophores. Result is an animal possessing absolutely no color whatsoever which is the All White Albino with Red Ruby Eye Color.

In the T+ Albino.... Tyrosinase is produced(switch is turned on) but is blocked from gaining access into the melanophores. Thus T+ Albinos are generally darker than their counterparts, often containing traces of melanin deposits that result in a slightly darker look then the all White T-Albinos of the same species.

Eye color of the T- Albino which is Red is particulary prominent while in the T- the eye color is dramatically darker. Eye color can be Garnet to a deep Burgandy.

Gene for Crem-ino is Simple Recessive.
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#632258 - 09/10/08 03:52 AM Re: Cremino [Re: Judie]
Laurens_Babies Offline
Glider Addict

Registered: 03/04/07
Posts: 3570
Loc: Kansas City, MO
Originally Posted By: Judie
The process of creating melanin is simple.


Ok I'm with you so far.

Originally Posted By: Judie
Tyrosine which is a type of amino acid is converted into dopa and then into dopaquinone in the presence of tyrosinase, which is synthesized by the melanophores. Dopaqunone is later midified into melanin and deposited in the appropriate melanophores. This is the root of the terms "Tyrosine positive(T+) and Tyrosinase negative(T-) albinos.


So when is this going to get simple? blush

Originally Posted By: Judie
In T- Albinos... Tyrosinase is not produced(switch is off) by the melanophores so no melanin is ever created by the melanophores. Result is an animal possessing absolutely no color whatsoever which is the All White Albino with Red Ruby Eye Color.

In the T+ Albino.... Tyrosinase is produced(switch is turned on) but is blocked from gaining access into the melanophores. Thus T+ Albinos are generally darker than their counterparts, often containing traces of melanin deposits that result in a slightly darker look then the all White T-Albinos of the same species.


Just not working for me Judie.. dunno



Originally Posted By: Judie
Eye color of the T- Albino which is Red is particulary prominent while in the T- the eye color is dramatically darker. Eye color can be Garnet to a deep Burgandy.

Gene for Crem-ino is Simple Recessive.



Ok can I just say.. I was a biology major for TWO years and that was complicated for ME. lol Maybe thats why I'm not in biology anymore roflmao


Edited by Laurens_Babies (09/10/08 03:53 AM)
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~Lauren

Lauren's Animal Kingdom
*Website is down temporarily should be back up by November!*

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#632264 - 09/10/08 04:21 AM Re: Cremino [Re: Laurens_Babies]
sugarglidersuz Offline
Glideritis Anonymous

Registered: 08/28/04
Posts: 14788
Loc: Cleveland, Ohio
I'm with you, Lauren. It all went over my head really quickly roflmao Which is why I always clearly state that I just don't know anything about breeding for color wink
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Suz Enyedy
:bb: Carina & Coobah
Allira & Gizmo :grey:
:grey: Picasso, Trinity Joy & Luna
:rbridge: DaisyMae; Darwin; Mareki; Mambo; Pika; Cricky; Reggie & Bobo, Pepe & Bittah


Suz' Sugar Gliders

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#632274 - 09/10/08 04:49 AM Re: Cremino [Re: sugarglidersuz]
konotashi Offline
Glider Addict

Registered: 08/17/07
Posts: 4061
Loc: Mesa, AZ
I'm not going to read that because I know I'll get lost after the third sentence. roflmao
I'm sorry, but sometimes you guys are way to smart!

I easy way I look at it as.... T- is no pigment whatsoever, and T+ has some pigment, but no dark pigment. You will never see black on something that's albino. (Except for I think there's a python called a Paradox python, and it's albino with black specks. I have NO clue how that works.)
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