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Budgerigar Mutations & Breeding

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    Color Mutations

    There are presently at least 32 primary mutations in the Budgerigar Parakeet enabling hundreds of possible secondary mutations (stable combined primary mutations) and color varieties (unstable combined mutations) .

    Mutations can occur in the …

    • color of the plumage and pattern: albino, blue, cinnamon-ino (lacewinged), clearwinged, dark, greywinged, opaline, pieds, spangled, dilute (suffused), and violet; and
    • feathers: crested

    They are divided into two basic series of colors:

    • white-based (blue, grey and white) andyellow-based (green, grey-green and yellow).
    Albino and Creamino Budgerigars

    Each of those 32 primary mutations belonging to either one of the 4 basic groups of mutations classified in Parrot species genetics, namely:

    • Albinism: where eumelanin is reduced in ALL body tissues and structures deviding into 2 sub-groups ; Complete-Albinism and Incomplete aka Partial Albinism,
    • Dilutism:where eumelanin is always +/- incompletely (never completely) reduced virtually only in feathering,
    • Leucism: where eumelanin is reduced virtually only in feathering and devides into 2 sub-groups ; Total-Leucism and Local-Leucism,
    • Melanism: where eumelanin is +/- increased virtually only in feathering.

    Each of those 32 primary mutations inherit either:

    • autosomal-Co-Dominant (A-Co-D), autosomal-Complete-Dominant (A-C-D),autosomal-Incomplete-Dominant (A-I-D),autosomal-recessive (A-R),autosomal-Poly-Genic (A-P-G) Sex-Linked-recessive (S-L)

    It must be noted that : the word autosomal is often replaced as a synonym by the NSL acronym standing for Non-Sex-Linked.

    Here’s a listing of the Budgerigar aka Budgie Parakeet’s 32 primary mutations genetic identities, followed by their common names in parenthesis, followed by their according allele and /or Locus symbols and ending with their genetic inheritance ;

    Blue Loci (plural of Locus):

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      • Dark-Factor: D-Locus : A-Co-D with regards to only other Blue Loci alleles and /or always otherwise A-I-D
      • Blue: bl*bl : A-Co-D with regards to only other Blue Loci alleles and /or always otherwise A-R
      • BlueII: blII-Locus : A-Co-D with regards to only other Blue Loci alleles and /or always otherwise A-R
      • YellowFacedBlue: blII*yf : A-Co-D with regards to only other Blue Loci alleles and /or always otherwise A-R
      • GoldenFacedBlue: blII*gf : A-Co-D with regards to only other Blue Loci alleles and /or always otherwise A-R

      Structural mutations :

      • Crest-Factor: Cr-Locus : A-P-GDark-Factor: D-Locus : A-I-DGrey-Factor (Dominant-Grey-Factor): G-Locus : A-C-D grey-factor (english-recessive-Grey-Factor): g-Locus : A-R grey-factor (australian-recessive-Grey-Factor) : ag-Locus : A-RViolet-Factor: V-Locus : A-I-D

      Dilutistic mutations :

      dil-Locus (Dilute Locus) multiple-allelic-series :

      • Suffused (Dilute): dil*dil : A-Co-D with regards to only other dil-Locus alleles and /or always otherwise A-R
      • ClearWings: dil*cw : A-Co-D with regards to only other dil-Locus alleles and /or always otherwise A-R
        GreyWings: dil*gw : A-Co-D with regards to only other dil-Locus alleles and /or always otherwise A-R

      Local-Leucistic (Pied) mutations :

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        • ADM (Anti-DiMorphic) Pied (danish-pied, recessive-pied, harlequin): s-Locus : A-R
        • Piebald (Australian-Pied): Pb-Locus : A-C-D
        • Pied (Continental_Dutch-Pied and Clear-Flighted_Dutch-Pied): Pi-Locus : A-C-D

        Total-Leucistic (Clear) mutations :

        • Spangle-Factor: Sp-Locus : I-D
        • Dark-Eyed-Clear: dil*cw / dil*gw : is not a genuine primary mutation but a mutation variety produced by the visual combination of ADM-Pied and either Dutch-Pied varieties : A-Co-D

        Albinistic mutations :

        NSL-Albinism (recessive-albinism) : a-Locus : multiple-allelic-series :

        • NSL-Ino (recessive-Ino): a*a : A-R
        • Bronze_Fallow (german_Fallow): a*bz : A-Co-D with regards to only other a-Locus alleles and /or always otherwise A-R *This mutation more precisely belongs in the Incomplete-Albinistic mutations but it was necessary to display it’s relationship with the a-Locus*
        • Brown or BrownWings (sepia): b-Locus : presumed A-Co-D with regards to only other a-Locus alleles and /or always otherwise A-R *This mutation more precisely belongs in the Incomplete-Albinistic mutations but it was necessary to display it’s relationship with the a-Locus*

        Cinnamon Budgie

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          Cinnamon (CinnamonWings): cin-Locus : S-L-R

          • Dun_Fallow aka Grey-Brown_Fallow (english_Fallow) : df-Locus : A-R
          • Faded : fd-Locus : A-R
          • possible Beige_Fallow aka Pale-Brown_Fallow (australian_Fallow) : pf-Locus : A-R
          • possible Plum-Eyed_Fallow (scotish_Fallow) : pl-Locus : A-R

          SL-Albinism : ino-Locus : multiple-allelic-series :

          • SL-Ino : ino-Locus : S-L-RSL-Clear Body : ino*cl : SL-Co-D with regards to only other ino-Locus alleles and /or always otherwise S-L-R

          Melanism :

          • BlackFace : bf-Locus : A-R

          Other mutations :

          • DarkWings : dw-Locus : A-I-DDominant-ClearBody : Cl-Locus : A-C-DOpaline : op-Locus : S-L-RSaddleBack : sb-Locus : A-RSlate : sl-Locus : S-L-R

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