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In combination with the Dark budgerigar mutation the body feathers become deeper shades of blue. A blue budgerigar with a single Dark factor is called a Cobalt, and one with two Dark factors a Mauve. The World Budgerigar Organization has established precise standards for budgerigar body colours using the Pantone Codes, as shown to the right.
Articles in this category deal with colour mutations of the Budgerigar, Melopsittacus undulatus. Pages in category "Budgerigar colour mutations" The following 25 pages are in this category, out of 25 total.
Blue Greywing specimens were produced later on in 1928. It is possible that all Suffused mutation specimens and their varieties are descendants from the first captive mutant specimens. This would mean that Suffused is the oldest sudden captive-bred color mutation of the Budgerigar species.
Image credits: TallyMatty Audio isn’t the first cat to go viral for having four ears. Midas made headlines in 2021 when he was adopted by a woman in Turkey. The Russian Blue mix also sports ...
Unlike undersized cats of normal proportions (such as Toy and Teacup Persians), [6] dwarf cats suffer from a genetic mutation called pseudoachondroplasia (dwarfism without enlarged heads), a type of osteochondrodysplasia (bone and cartilage disorder). These genetic disorders of bone and cartilage are typically manifested as abnormal bone shape ...
Mutations in this gene also cause white spotting. [9] Since a large variety of coat patterns exist within the various cat breeds, the cat is a qualified candidate animal to study the coat genetics of hair growth and coloration. [10] Several genes interact to produce cats' hair colors and coat
The SF Yellowface II Skyblue variety, described in Appearance above, is a composite of the Blue and Yellowface II mutations, having one allele of each. The loci of the Dark budgerigar mutation and the Blue allelic series are situated on the same autosome, so the Dark mutation is linked to the Blue allelic series (see genetic linkage).
Only one discovery of the Slate mutation appears to be documented in the budgerigar literature. In 1935 T S Bowman of Carlisle bred a Skyblue Slate and a Cobalt Slate, both hens, from a Cobalt cock and a Skyblue hen. [2] [5] [6] As the Slate mutation is a sex-linked