A TANGELO.....REDO!

Gregg M

Registered Member
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The Rotten Apple NYC
ok then my genetics for dummies is wrong... i guess its dummies who wrote it

With codominance an organism shows a third totally different phenotype, not the dominant one... With incomplete dominance we get a blending of the traits so that the third phenotype is something in the middle (red x white = pink). :main_thumbsup:
 

Golden Gate Geckos

Mean Old Gecko Lady
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Jarret, with leopard geckos, the co-dominant gene when crossed with another genetic morph would produce 50% offspring that express the co-dom gene. With incomplete dominance, the difference is in the way it works out the phenotypic expression since it is controlled by a single locus gene.
 

jmlslayer

New Member
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Iceland
i understand i wasnt saying that u were wrong but dummies was wrong..i have had 3 other dummie books that proved some info was wrong..

i will never doubt Gregg or u Marcia with anything to do with geckos cuz u two have been keeping them far more longer that i ever thought about having them.
 

paulnj

New Member
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10,508
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NJ USA
Awesome posts matt...

I admit I was wrong about the aptor X sunglow possibly being a foundation...

History lessons are great and thanks for clearing it up..... now get old school on us and bring back those animals, the Jungle giants and those screaming hyglos!!!

Gregg. knowledge is power, remember ;)
 

preacherman

Gecko Genetics
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1,106
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Wisconsin
Actually, the Mack Snows are an incomplete dominant mutation. For some reason, the reptile community labels anything with a "super" form as a codominant mutation, but this is incorrect.

The August, 2007 issue of Reptiles Magazine had an article dealing with the differnent genetic terms used among reptile breeders, and that article dealt with this issue:

"There are few examples of true codominant traits in reptiles...So is a trait incompletely dominant or codominant? ...many if not all reptile morphs called codominant are actually incompletely dominant. However, this distinction in terms rarely makes a difference in practice--at least until a true codominant morph appears. A good rule of thumb is that if there is a "super" form, the mutation is incompletely dominant." (Vincent J. Lynch. "Genetics 101". Reptiles Magazine. August, 2007. pg. 83)
 
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thestack510

Rest In Peace jmlslayer
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The S.F. Bay Area, California, U.S.A.
Edgar, earlier you said you would remove the RAPTOR gene, how come? I have a Tagelo Enigma het. RAPTOR and I'm looking forward to seeing some animals with solid red eyes and a lot of Tangerine influence. That ought to make for some nice Novas.
 

Golden Gate Geckos

Mean Old Gecko Lady
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SF Bay Area
"There are few examples of true codominant traits in reptiles...So is a trait incompletely dominant or codominant? ...many if not all reptile morphs called codominant are actually incompletely dominant. However, this distinction in terms rarely makes a difference in practice--at least until a true codominant morph appears. A good rule of thumb is that if there is a "super" form, the mutation is incompletely dominant." (Vincent J. Lynch. "Genetics 101". Reptiles Magazine. August, 2007. pg. 83)
Hmmmm. Back to the drawing board!
 

shadowx362

Excellent Geckos
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in my thoughts
Edgar, earlier you said you would remove the RAPTOR gene, how come? I have a Tagelo Enigma het. RAPTOR and I'm looking forward to seeing some animals with solid red eyes and a lot of Tangerine influence. That ought to make for some nice Novas.

Instead of having babies het for everything I would just like a simple yet stunning animal to later cross into other projects if I preferred other than just RAPTOR's. That is just what I would like, doesn't mean a het raptor "Tangelo" is something bad.
 
N

Nigel4less

Guest
Instead of having babies het for everything I would just like a simple yet stunning animal to later cross into other projects if I preferred other than just RAPTOR's. That is just what I would like, doesn't mean a het raptor "Tangelo" is something bad.

I hear you there Edgar! Gotta keep the Old School Dookies around. :main_thumbsup:
 

nicks

New Member
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56
Location
Colorado
Hmmmm. Back to the drawing board!

Marcia, we all have much to learn.

So lets say we have a polygenic trait that has four different allelic mutations and the visible appearance of the animal is only non normal when all those mutations are found in both parents. If you have animals carrying the heterozygous form of said group of alleles but are phenotypically normal the mode of inheritance is what?

Why can't something be both polygenic and be recessive?

Nick
http://www.eereptiles.com
 

Gregg M

Registered Member
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3,055
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The Rotten Apple NYC
"There are few examples of true codominant traits in reptiles...So is a trait incompletely dominant or codominant? ...many if not all reptile morphs called codominant are actually incompletely dominant. However, this distinction in terms rarely makes a difference in practice--at least until a true codominant morph appears. A good rule of thumb is that if there is a "super" form, the mutation is incompletely dominant." (Vincent J. Lynch. "Genetics 101". Reptiles Magazine. August, 2007. pg. 83)

I would not put much stock in what someone says in REPTILES mag...
Remember, even I got a published article in that mag... LOL...:main_laugh::main_thumbsup:
 

paulnj

New Member
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10,508
Location
NJ USA
I don't think he has, but I seen his sunglows yesterday and they are SMOKING for a linebred polygenetic trait combined with a homozygous recessive trait and a dominant gene.
 
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