Search found 5 matches

by paulh
Mon May 15, 2023 1:24 pm
Forum: Pigeon Genetic Discussion
Topic: Alleles
Replies: 6
Views: 2286

Re: Alleles

From what I read, cherry and opal are mutant alleles at the o locus. Both are recessive to the wild-type allele. A bird with a gene pair made up of an opal gene and a cherry gene looks like a homozygous opal pigeon. http://belpinto.wdfiles.com/local--files/recessive-opal-cherry/cherry%20gene%20paper...
by paulh
Mon May 15, 2023 4:32 am
Forum: Pigeon Genetic Discussion
Topic: Dilute / Reduced / Ice / Dominate Opal
Replies: 3
Views: 1724

Re: Dilute / Reduced / Ice / Dominate Opal

3. Can a pigeon carry the ice gene and not express it? Or look like it doesn't express it? I know its an autosomal dominant trait so it should express. The term you are looking for is epistasis. The word's verb form is "epistatic", as in one mutant gene is epistatic to another mutant gene....
by paulh
Mon May 15, 2023 3:44 am
Forum: Pigeon Genetic Discussion
Topic: Alleles
Replies: 6
Views: 2286

Re: Alleles

You might want to check a genetics text for the difference between a gene and a trait. Wilmer Miller's A Survey of Genetics can be downloaded from his website, ringneckdove.com. A pigeon cell has 40 pairs of chromosomes. Each chromosome contains a DNA molecule. A pair of chromosomes has identical or...
by paulh
Sun Mar 14, 2021 10:45 am
Forum: Pigeon Genetic Discussion
Topic: Pigeon Base Color Genetics Chart
Replies: 3
Views: 4385

Re: Pigeon Base Color Genetics Chart

Quite good for a first draft. This chart is for the b genetic locus and should be marked as such. IMO, the genotypes for sperm, eggs, parents and babies should be included using appropriate symbols. Homozygous and heterozygous refer to gene pairs, not colors. The word "red" should be chang...
by paulh
Sat Jan 09, 2021 1:29 pm
Forum: Genes and Loci Discussion
Topic: The d locus - dilute, pale
Replies: 4
Views: 7578

Re: The d locus - dilute, pale

Extreme dilute should be added to the d locus alleles. Breeding tests of white ringneck doves x extreme dilute pigeons (derived from the Barkel lemon strain) show that the dove and pigeon mutants are allelic. See http://mangile-pigeons.sperry-galligar. ... ybrid.html.