Posted by:
natsamjosh
at Tue Jan 20 19:57:02 2009 [ Email Message ] [ Show All Posts by natsamjosh ]
Hi Mike,
I believe you are confusing genotype/phenotype with the relationship between the normal and mutated allele in the gene pair.
"Dominant" and "co-dominant" (and "recessive" refer to the relationship of the mutated allele to the normal one. For dominant and co-dominant traits, theoretically the trait will be expressed even if only one of the alleles in the gene pair is the mutation.
I think when you say "dominant" you really mean homozygous for
hypo gene (ie, both alleles in the gene pair are hypo mutation),
which is also referred to as a "Super Hypo." (Het hypos are normally to referred as plain "Hypo."
It seems to be controversial whether hypo is dominant or co-dominant, but even with co-dominance, you'd most likely
see some level of hypo expression with a heterozygous gene pair.
That's why a Super Hypo (what you are calling "Dominant" will produce all hypos. All the offspring will have at least one
hypo allele.
Hope this makes sense, the terminology can be confusing.
Thanks,
Ed
>>I am just starting to learn about breeding boas, but wouldn't be until atleast a couple years from now. Your explanation was helpful, thank you.
>>
>>I was told that the salmon gene is co- dominant. Which means when bred to any normal suriname the result is half salmon and half normal suriname. So you would get a litter of half normal Columbian Surinam crosses and half hypo Columbian Surinam crosses. now if you have a Dominant Hypo they only produce hypos... So if your suriname mates with your dominant hypo your entire litter would be hypo instead of half and half.
>>
>>Does this make sense?
>>
>>Thanks,
>>Mike
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RE: Dominant Hypo Boa - natsamjosh, Tue Jan 20 19:57:02 2009