In other species: chicken , pig , goat

Categories: Haematopoietic system phene

Single-gene trait/disorder: yes

Disease-related: no

Key variant known: no

Cross-species summary: Each blood group system consists of a set of blood types, each of which corresponds to a particular antigen (usually a glycoprotein) on the surface of red blood cells. The different types within a system are the result of the action of different alleles at a locus that usually encodes an enzyme that catalyses the creation of the feature of the glycoprotein unique to that type, e.g. the presence of a particular sugar at the end of a short chain of sugars.

Species-specific name: Secretor locus

Species-specific description: This locus has at least 2 alleles, which control the expression of the R blood group system.