Genetic basis for Australian Australian yellow face fischer lovebird and mode of inheritance
Australian yellow face fischer lovebird mutation which turns the body part into golden is one of the Australian color mutations found in Fischer’s Lovebirds. This is a genetic mutation similar to the autosomal recessive mode seen in many other lovebird color mutations.
Here’s how the mode of inheritance for the Australian Yellow-faced mutation works:
Homozygous Mutant (Australian Yellow-face Fischer Lovebird): For demonstrating the Australian Yellow-faced coloration, each lovebird has to carry two alleles for the mutated gene inherited from its mother and father. The lovebird with two copies of the modified gene is referred to homozygous for the Australian Yellow-faced mutation. The yellow-face is one of their characteristics.
Heterozygous Carriers: Such lovebirds are heterozygous carrying the recessive autosomal mutant trait known as the Australian yellow-faced. Most of these birds have normal faces but may carry the mutant gene which they pass on to their chicks hence carrying the mutation factor along. Carriers of the mutation.
When two lovers carrying this Australian Yellow faced Australian mutated gene as heterozygotes they have about a 25% opportunity to produce homozygous offspring who will be affected with the same colorations. A ratio of 1/4 stands for the number of Australian yellow face homozygous offspring out of all the offspring produced through this type of breeding.
In other words, breeders should mate carefully so that they get more chances to produce Australian Yellow-faced homozygous offspring. Generically, the tests may help in finding out the carrier of gene mutations and designing of breeding programmed intended to develop a kind of love birds which will possess the same type of characteristics as these ones.