Cohesion (biology)

The genetic cohesion of individuals of a species ( biospecies ) is called cohesion (from the Latin cohaerere , to connect ). Cohesion has the effect that different species, which are obviously not generatively isolated from one another and which overlap in their distribution areas, remain stable and do not merge into one species. These species are each adapted to their area of ​​distribution by a set of hereditary characteristics and can sometimes even develop fertile hybrids in the areas of overlap . Stabilizing selection , however, again limits the greater variability resulting from the hybridization. Genetic bases can be specific combinations of genes ( e.g. gene linkage ).