Posted by:
ChrisGilbert
at Fri Mar 2 14:42:45 2007 [ Email Message ] [ Show All Posts by ChrisGilbert ]
A little more to the Co-dominant and Dominant thing.
The following are Co-dominant mutations in Boas:
Jungle
Motley
The following are Dominant mutations in Boas:
Hypo/Salmon
Arabesque
Aztec (possible Co-dom)
Pastels are neither co-dominant or dominant. Pastels are derived from selective line breeding for a reduction in melanin, and sometimes an increase in color. Pastels are a form of hypomelanism, but their genetics isn't cut and dry. There is no mutation per say that causes the Pastel trait, however it is something that can be passed on. Here is where the term polygenic mutation comes into play. There are multiple factors that result in Pastels and by breeding select animals together you can get a higher likelyhood of secureing those traits in the offspring.
The difference between co-dominant and dominant mutations falls in the homozygous form. If the homozygous form is visually aka obviously phenotypically different from the heterozygous form the mutation is co-dominant.
When you see ads for co-dominant Hypos or possible dominant Hypos the terminology it incorrect. It should say Heterozygous Hypos or Homozygous Hypos. To make is simple, Hypo or Super Hypo. All Hypos are dominant, that is the type of mutation it is. An animal isn't co-dom or dom, a mutation is, an animal is heterozygous or homozygous.
In Co-dominant mutations like Motleys the Heterozygous form (Motley) is visually different from the Homozygous form (Super Motley, Patternless).
I hope this makes sense, I often have a tought time explaining it through text.
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RE: Making Hets.... - ChrisGilbert, Fri Mar 2 14:42:45 2007
