hypothesis to become "red" Jp. newt.
genetics1,
hypothesis of rubrum-mutations;
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=1
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there are two kinds of variants.
I will propose the following hypothesis;
1= a/a b/b , double mutation,
2=a/a but B/B or B/b, single mutation.
The crossing of a/a b/b x a/a B/B
F1= a/a B/b
like 2.
F2= 3 :1 =(like 1 phenotype) : like-2 phenotype.
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Anyhow, the expression of really red color need
the booster addition of Astaxanthine-rich-food.
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a and b mutations are responsible for the tissue-specific expression of melanin.
a mutation expresses less melanin.
Additional b mutation need the deletion of residual melanin.
a/a b/b body still has the melanistic-dots.
There seem to be third gene which is responsible for the "dots."
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If so, how the A/a(orA) b/b body looks like ?
hypothesis 1;
b has very faint effect to A gene and will be the same as wild color.
hypothesis 2;
b has effect only at the a/a background.
anyhow, b mutation may not have drastic effect for the "red" color-appearance.
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Above idea; as of 3/27/22,