heterozygous

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Originally Posted by nevohraalnavnoj

True 'dat.

Here's a question. Say you produce a super pastel from a bell line cross a graziani line, which are compatible. Is this animal actually caring two different alleles (one bell, one graziani) for a single trait (pastel)? Or are the alleles the exact same? If the latter, wouldn't that mean different lines of pastel should be indistinguishable??

JonV

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i asked this question a while back and didnt really get a satisfactory answer. its good to know that its not just me that has been pondering this lol

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Originally Posted by veedubz

i asked this question a while back and didnt really get a satisfactory answer. its good to know that its not just me that has been pondering this lol

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If when breeding 2 differnet lines of a gene (Pastel for this example) and the outcome is the homozygous form of the traitSuper Pastel for this example), then that makes them compatible, but it also means that they are the same gene. If they were not the same gene, then you would get a cross of the 2 genes from that breeding. The different lines just mean that diferent people imported animals from Africa, and proved their specific animal to be genetically reproducable. However, once they prove that they are compatible, then they have proven that they are the same thing.

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Originally Posted by nevohraalnavnoj

Is this animal actually caring two different alleles (one bell, one graziani) for a single trait (pastel)? Or are the alleles the exact same?

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If you can produce a "super" (homozygous animal) from a pairing of two animals who are heterozygous for a particular trait, it's the same gene -- as with your bell + graziani example.

If the offspring of two heterozygous animals produces a double-heterozygous animal, then they are passing on alleles from different genes -- ie. a cinnamon pastel + a lemon pastel

perhaps the differences in different lines of pastels are actually from differences in other genes on the same chromosome?
So they're homozygous for the most obvious pastel trait, but heterozygous for other more minor traits that some varieties of pastels have?

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Originally Posted by muddoc

If when breeding 2 differnet lines of a gene (Pastel for this example) and the outcome is the homozygous form of the traitSuper Pastel for this example), then that makes them compatible, but it also means that they are the same gene. If they were not the same gene, then you would get a cross of the 2 genes from that breeding. The different lines just mean that diferent people imported animals from Africa, and proved their specific animal to be genetically reproducable. However, once they prove that they are compatible, then they have proven that they are the same thing.

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Hmm...this reminds me of a part in NERD's ball python book. He says that many ball python "lords" (his term, not mine) in Africa will find something weird, start breeding it on their own and then sell the offspring to americans as "Oh, I just found this running around in the wild. You will be the first and only to have it". I wonder if this was the case with the pastels?

He also says that because of this process there are probably morphs in the possession of these ball python lords that we have never even heard of.

JonV