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*Dominant yellow* Agapornis fischeri = SL dominant greywing?

Over the last 5 years, the South-African breeder Willie Matthews, bred with *dominant yellow* Agapornis fischeri.
He kept, from day one, records from each pair / youngster.

The first years he had to get rid of the ‘split’- and other factors in the birds and after that he did lots of test matings with his “pure” birds. He came to the conclusion that it is most probably a sex-linked incomplete dominant mutation.
Typical for the sex-linked incomplete dominant mutations is that there are only SL SF females and SL SF and SL DF males. But because the females are hemizygote they express in a SL SF bird always the full colour of the mutation. (more info in my book – chapter ways of inheritance)
Every single breeding outcome of these test matings fits in the expected breeding results of SL dominant mutations.
He suspects that it is similar with the SL dominant greywing mutation in the barred parakeet, aka lineolated parakeet or Catherine parakeet (Bolborhynchus lineola).

To be 100% sure, we would like to ask all the breeders who think they have proof to the contrary, to get in touch with us.

If we can confirm this with other breeding results, it is self-evident that we continue to use the name SL dominant greywing for this mutation.

So to be continued.. and thanks in advance for your possitive feedback. 🙂

18 Responses to *Dominant yellow* Agapornis fischeri = SL dominant greywing?

  1. Hi Dirk,

    Wouldn’t these also be the equivalent to the SL “Pastel” in passerines (like in the Gouldian finch – E.gouldiae)?


  2. Hi Ricardo,
    are PROBABLY the same mutations

  3. egbert says:

    Is this 100% sure?

  4. No, that is why we ask other breeders to send us more details. We need more breeding results with these *dominant yellows*, – IMPORTANT – from different breeders, before we can confirm this statement.

  5. Dwi Sulistio says:

    Bagaimana dengan adanya Lovebird dengan mata biru atau retina biru apakah itu hasil mutasi pada Lovebird

  6. Diego says:

    Hello Mr. Dirk Van den Abeele, in this case, a male bird SF would look similar to PASTEL? and a DF would look similar to DEC?. It would be the first dominant mutation linked to sex in agapornis?

  7. Depends on the penetrance and expression of this gene. This is something we need to find out – if this mutation is indeed SL incomplete dominant

  8. Diego says:

    OK thanks. Could not you post more photos and some other information you have about this mutation? If it were an incomplete dominant SL mutation, would there not be phenotypic difference between SF and DF ?.

  9. It is all in my book. ?

  10. Reza says:

    Saya punya green fischery 1.0 x dominant yelow ank keluar green misty sf

  11. Thank you. Male or female? any idea?

  12. Reza says:

    Terlihat seperti male anaknya! ,cocokny kalau dewasa nanti di silangkan apa? A, blue Misty dark factor atau warna yg lain master

  13. Ideal schould be with a pure wildtype.

  14. Reza says:

    Male,kalau dewasa di kwain silang dengan apa master dirk supaya menjadi warna mutasi yg indah

  15. Reza says:

    Thank you master 9 bulan lgi akan saya belikan green wild type murni

  16. Cahyadi says:

    Master Dirk help, Dominant yellow/blue male yang bagus dikawin dengan apa? Ini Ada female Opaline blue,Opaline split blue,turquoise? Atau mungkin Ada masukan dari mister? Thanks

  17. Alaa Eldin says:

    What is the inheritance of mottle pied fisheri & How can differnate between it and recessive and dominant pieds fisheri

  18. Bashier Hassen says:

    Hi mr Dirk I’m Bashier Hassen I’m new to ficher lovbirds I want to learn so if possible I can ask you of these birds I have read some of the Genetics you compiled

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