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His department's research explored the genetic improvement of corn and other food crops, poultry, dairy cattle, other livestock, bees, and fur animals. [4] Among birds, Cole and his students focused on the genetics and hybridization of Columbidae , particularly domestic pigeons and ring doves .
The concept of an auto-sexing breed of chicken is due to the geneticist Reginald Punnett, who during the First World War had already proposed the technique of cross-breeding chickens carrying the barred gene (B) with others to produce sex-linked chicks with plumage differences that could easily be distinguished.
The Königsberg Colour-head Tumbler [1] (German: Königsberger Farbenkopf) is a breed of fancy pigeon developed in the mid-18th century in Königsberg, East Prussia, from which it gets its German name. This breed of pigeon is well known in Russia because Königsberg is now a part of Russia, and is known as Kaliningrad.
Equine coat color genetics discusses color genes in horses, including a brief description of dilution genes; Equine coat color describes various colors in horses; Cream gene, describes the process for horses by which the cremello, perlino, smoky cream double-dilute colors are created as well as the buckskin, palomino and smoky black single ...
The quality of a Frillback is based on a 100-point scale, with the head constituting 15 points, the color constituting 15 points, the body constituting 10 points, the curl constituting 50 points, and the muff constituting 10 points. A yellow Frillback. The colors of standard Frillbacks fall into six color categories. [3] [4]
The 2017 passenger-pigeon genetic study also found that, in spite of its large population size, the genetic diversity was very low in the species. The authors suggested that this was a side-effect of natural selection , which theory and previous empirical studies suggested could have a particularly great impact on species with very large and ...
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Beyond the base coloring of a rosy-faced lovebird, there are mutations that exist independently of any other mutation. These mutations are of three distinct types: co-dominant (exemplified by the Orangefaced, Dark and Violet mutations), recessive (exemplified by the Edged Dilute mutation), and sex-linked (exemplified by Lutino, Pallid [also known as Australian Cinnamon], American Cinnamon, and ...