Posted by:
boxienuts
at Thu Jul 24 11:35:30 2008 [ Email Message ] [ Show All Posts by boxienuts ]
I am not "the" expert but let me try to help clear some of your confusion.
Q:If a sunglow is bred to a sunglow then the offspring will be amel right? If that's the case then what if a sunglow is breed to an amel and how do breeders produce sunglows year after year? Are the locus of Amelanism gene moved ever so slightly to create sunglow that it becomes unique only to that animal and if it is bred to another sunglow do the alleles move to a "default locus"?
So my understanding is that sunglow is a selectively bred amel for less white borders, so to keep a clean sunglow you would bred sunglow to sunglow, if you breed a sunglow to a regular amel you would likely get a less clean sunglow which would be counterproductive if your goal is sunglow.
Q:Bloodreds are diffusion plus line breeding right? So then if a bloodred is bred to a bloodred will the offspring be bloodred?
Bloodreds are also selectively bred diffusion gene, so the answer is similar to the above. If you breed a high quality blood to a lesser quality you would get some variable inbetween. So duffusion and amel refer to the allele of that gene, but bloodred and sunglow refer to selectively bredother desirable qualities to compliment the look of that phenotype.
Q:With pythons if a co-dominant is bred to a co-dominant there is a 1/4 chance of the offspring being super. So then if ultramels are co-dominant does that mean there are super corns?
So with most of the ball python co-dominant genes are refering that those alleles are codominant with the wild type, so example one copy pastel and one wild type copy makes yellow snake and two copies of pastel allele creates super pastel, where as with ultraamels we are refering to ultra allele is co-dominant to the amel allele ate the same loci so one copy of each makes ultramel something in between. Both ultra and amel are recessive to wild type but co-dominant to each other, make sence now?
Q:Finally when dealing with a co-dominant trait how do I predict the offspring's phenotype and genotype properly when it it is being bred to a simple recessive or another co-dominant?
There is not a short answer for this one but there are many, many sources demonstating how to use the Punnet Square to predict offspring, or query Mendelian genetics.
Hope that is helpful, and if I mispoke hopefully one of the more experienced people here will correct me or add to what I have stated.
-----
Jeff Benfer
1.0 pastel Python regius
1.1 mojave Python regius
0.1 normal Python regius
1.3 Terrapene carolina thriunguis
2.3 Terrapene carolina carolina
4.1 Kinosternon baurii
1.1 Malaclemys terrapin terrapin
2.2 double het albino and anerythristicThamnophis sirtalis parietalis
1.0 anerythristic Thamnophis sirtalis parietalis
2.2 Iowa snow Thamnophis radix
0.2 het Christmas albino Thamnophis radix
1.1 double het cherry erythristic, albino Thamnophis sirtalis sirtalis
1.1 melanistic Thamnophis sirtalis sirtalis
1.1 triple heterozygous for amelanistic,carmel, and stripe Pantherophis guttatus
0.1 anerythristic motley Pantherophis guttatus
0.1 Okeetee Pantherophis guttatus
[ Hide Replies ]
|
RE: genetic confusion (kinda long) - boxienuts, Thu Jul 24 11:35:30 2008