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SL dominant greywing mutation in Agapornis fischeri???

In April, we announce on our blog that Willie Matthews did a lot of test mating with what he believe *dominant yellow* Agapornis fischeri. All indications pointed out in the direction of a sex-linked incomplete inheritance.

Test mating set up by other breeders proved that *dominant yellow* Agapornis fischeri does not has a sex-linked incomplete dominant inheritance. In the mean while a few other breeders told us that there is a kind of ‘edged’ mutation that inherits, probably, sex-linked incomplete dominant in Agapornis fischeri. So, as we announced in September and was expected by some breeders, Willie probably confused *dominant yellow* with (this) (an)other mutation.

Now we have enough indications to state that there is most probably a sex-linked incomplete dominant mutation in Agapornis fischeri, other than *dominant yellow*. Main question now is if this mutation is similar with the SL dominant greywing mutation in the barred parakeet, aka lineolated parakeet or Catherine parakeet (Bolborhynchus lineola). The only way to confirm this is comparing cross-sections of the feathers of both phenotypes.

So, as usual, time will tell.



2 Responses to SL dominant greywing mutation in Agapornis fischeri???

  1. Thanks, we know. It can be a type of edged, but also SL Dom greywing, that depends on what happens during the biosynthetic pathway of the eumelanin.
    The best way to find out is to examine and to compare the feathers of A. fischeri, ringnecks and lineolated parakeet. But for the moment we have no budget or time for it.
    Thanks for your comment!

  2. S. Adam says:

    A mutation with same phenotype and inheritance is found in the Indian ringneck. It’s called SL dom. Edged. DF Male looks nearly like a visual female which is only carrying one mutated gene do to the lack of the second Z-chromoosme. SF Male is in the middle between DF and wildtype.

    SL dom. Edged would be a good name description because of it’s Melanine reducing behaviour.

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