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View Poll Results: Are enchi and cinammon/ black pastel allelic?
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Re: Thoughts on cinnamon and enchi being allelic?
 Originally Posted by paulh
Gene symbols:
E = enchi mutant gene
e = normal gene
C = cinnamon mutant gene
c = normal gene
Chromosome pair of a cinnamon enchi from a cinnamon x enchi mating:
---------e------C---------
---------E------c---------
This is a trans linkage, because the two mutants are on different members of the chromosome pair. Almost all of this snake's babies (if mated to a normal ball python) would be either enchi or cinnamon.
A cis linkage would put the two mutants on one chromosome and the two normal genes on the other chromosome.
---------E------C---------
---------e------c---------
You are writing about a cis linkage, and what you wrote is true.
I was writing about a trans linkage, which gives totally different results.
I have not seen the results of any cinnamon enchi x normal matings. By all means beat me into submission with numbers. But to be convincing, the data must include genotype of male, genotype of female, is female virgin, total number of babies, number of cinnamon enchi babies, number of cinnamon babies, number of enchi babies, number of normal (neither cinnamon nor enchi) babies. The number of clutches means nothing. If possible, get at least 100 babies in the data.
You are correct about trans linkage, I made a logic error when I wrote my last post.
There is data like what you describe but usually not in a nice neat presentation, it takes listening to people drone on in videos with the exception of viewing JKR/Kinova clutch records.
Another thing I might mention is that many other combinations besides Cinammon Enchi have being tried, and while it's still not 100%, it does point towards allelic when other morphs considered allelic with Cinnamon behave the exact same way with Enchi. Of course if they are all linked, they would until you saw crossover. I guess it's always possible they are closely linked and we just haven't seen crossover, but for me personally, there is enough data for me to consider them allelic until proven otherwise given they are going to behave exactly as if they were in odds until that happens, and then whatever line does crossover, they will start behaving as if they are a single morph, difficult to pull apart.
7.22 BP 1.4 corn 1.1 SD retic 0.1 hognose
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