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Posted by Dwight Good on January 31, 2003 at 12:41:02:
In Reply to: Leucistic Texas rat snake i need your help posted by python2000 on January 31, 2003 at 12:28:54:
:Hi a friend of mine wants to sell me a female leucistic rat snake I have a male normal. (Both are adults) What will i expect if i breed them together?
There are a couple of potential outcomes from this breeding. You should either get all normals, or a mix of normals and leucistics. If you get leucistics, that would prove that your normal male is heterozgous for leucism. Since you are in Rome, there is a good chance your normal male might be heterozygous for leucism since the captive gene pool should hypothetically be smaller. Here in the USA the odds would not be as good, since WC normal Texas rats are commonly available.
Of course it would also be possible to get other outcomes from this breeding like albinos or axanthics but this is highly improbable. This past season I was surprised to get leucistics from breeding an axanthic Texas rat to a normal. I knew the normal was possibly het leucistic, but was not aware that the axanthic carried the gene. Kinda sucks getting leucistics when its the axanthics I'm after, hehe. In addition, I also found out my main breeder male leucistic is het albino. I bred him to a newly acquired female leucistic and ended up with albino leucistics! (see below)
Is leucistic trait recessive? And if i breed leucistic X leucistic?
Yep, this trait is recessive. And leucistic X leucistic would produce all leucistic offspring. That is unless both parents were heterozygous for albino as well, then you would also get some albino leucistics.
Hope this helped,
dg
