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As Sonoran posted before all Wheaten (eWh), wild-type (e+) and Asiatic-partridge (eb) based birds express a wing triangle; this is called duckwing. With this is intended the ground-color (1 of the possibilities on the E-locus). The Birchen (ER) and Black (E) not express a wing triangle, this is called crowwing.
Now each ground-color is based on gold (s+) or on his mutation Silver (S) (the possiblities on the S-locus).
So every chicken always have 1 of the possibilities of the E- & S-locus, ALWAYS.
All the other color-genes posted on other loci (= plural for locus) are facultative.
To come back to the "gray" they should be for ground-color eb/eb and based on S/S * S/- (= Silver Asiatic partridge)
When now other color-genes come in mutated form in a "gray" the phenotype (=what we see on the outside) will be different.
-eb/eb S/S * S/- Pg/Pg (= Silver Multiple laced Asiatic Partridge)
-eb/eb S/S * S/- Pg/Pg Ml/Ml (= Silver Double laced Asiatic Partridge)
-eb/eb S/S * S/- Pg/Pg Ml/Ml Co/Co (= Silver Single laced Asiatic Partridge)
-eb/eb S/S * S/- Co/Co (= Silver Columbian Asiatic Partridge)
-eb/eb S/S * S/- Co/Co Ml/Ml (= Silver Quail Asiatic Partridge)
PS color genes can be unpure Pg/pg+ or eb/e+ than they express in incomplete form but follow the rule of Dominace. (color-genes stay always on their own locus, so eb/Ml is NOT possible). Their are color-gene inherit ways that make combinations between Co-Db-Ml-Pg possible this are the crossing-over color-inheritance. (all explained in the genetic book : http://www.tuinvee.nl/pagina10.html and on different websites).
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He looks to be a grey with autosomal red cockerel. Some call it tortoise; some call it calico, but the term calico was originally coined to describe splash with spots of autosomal red, not grey.
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He looks to be a grey with autosomal red cockerel. Some call it tortoise; some call it calico, but the term calico was originally coined to describe splash with spots of autosomal red, not grey.
Thanks so much! Whether its a boy or a girl, I need to re-home him