Reptile & Amphibian Forums

I'm a novice in breeding leos. could you help me with understanding genetics of high yellow? If I breed high yellow female with normal gekko and high yellow female with het-blizzard male what will I get? Will I get a morph? Or the offsprings will be normal? Or it depends on incubation temperature?

High Yellow is a line bred trait so breeding them to Normals will get a varring amount of Yellow any one animal has. As for the Het-Blizzard. Blizzard is a simple reccessive trait and would require both parents to carry the Blizzard trait in order to produce Blizzards. What you would get in your match up is Normal offspring were 50% would be Het-Blizzard and 50% would be Normal. So thats were 50% Possible Het-Blizzard comes into play. Since you can't tell visually which are Het and which are not. And yes. Incubation tempeture can affect the amount of yellow the young have.

I have a blizzard female and het blizzard male, the offsprings from them were: 1 blizzard and 1 normal looking, will this normal looking baby carry the blizzard, or is it just normal?

Yes, your normal looking baby is 100% het for Blizzard. I would highly recommend reading Ron Trempers "The Herpetoclture of Leopard Geckos". This book does a really good job explaining the different genetics and models some breeding outcomes.

I agree. You could also just check out Ron's website as well to!

im not 100% sure about this, but i think if you breed anything with high yellow there will be a "compromise" between the two, it's called linebred traits. it's not the kind of trait with dominant/recessive. if you cross a high yellow with a het for anything you will get a normal patterned leo with a little more yellow than normal. you need to breed something het with either a gecko het for the same trait, or a gecko that actually has that trait visibly. hope this helps. google leopard gecko genetics and there are some good sites.