corns genetics

nuggett5 · #1 (**permalink**) 26-03-2008, 11:45 AM

hi just a quick one. are all corn morphs simple recessive genetics?or is there any co-dominant / dominant gene morphs ?

nuggett5 · #2 (**permalink**) 26-03-2008, 03:00 PM

someone must know

paulh · #3 (**permalink**) 26-03-2008, 03:32 PM

I've seen claims that the blood red pattern mutant that diffuses the dorsal blotches is codominant. If so, the effect in the heterozygous type is relatively subtle.

Ultra/amelanistic/normal is a three allele group. So is motley/striped/normal.

eeji · #4 (**permalink**) 26-03-2008, 07:49 PM

Quote:

Originally Posted by paulh

I've seen claims that the blood red pattern mutant that diffuses the dorsal blotches is codominant. If so, the effect in the heterozygous type is relatively subtle.

Ultra/amelanistic/normal is a three allele group. So is motley/striped/normal.

to expand:

ultra and amel are codom to each other, but are both recessive to normal

motley is dominant over stripe, but both are recessive to normal

nuggett5 · #5 (**permalink**) 27-03-2008, 10:27 AM

Quote:

Originally Posted by eeji

to expand:

ultra and amel are codom to each other, but are both recessive to normal

motley is dominant over stripe, but both are recessive to normal

so stripe to normal you get hets? and motley to stripe you get motley? and two amels would give you all amels?

eeji · #6 (**permalink**) 27-03-2008, 07:13 PM

Quote:

Originally Posted by nuggett5

so stripe to normal you get hets? and motley to stripe you get motley? and two amels would give you all amels?

yep

Ssthisto · #7 (**permalink**) 27-03-2008, 08:03 PM

And there may be a dominant yellow enhancing gene in Europe - testbreeding's being done to unrelated animals with regards to the "Buff" gene now.

danmcg · #8 (**permalink**) 28-03-2008, 01:06 AM

Quote:

Originally Posted by Ssthisto

"Buff" gene

love it!

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