Outbreeding

Outbreeding
See allogamy.
Related Terms:
Allogamy
Transfer of pollen (pollination) from the anther of the flower of one plant to the stigma of the flower of a genetically different plant.

outbreeding depression A reduction in the fitness of offspring resulting from matings among individuals from different populations or demes, possibly caused by the breaking up of coadapted gene complexes.

Genetic variability is promoted by outbreeding: sexual reproduction between genetically dissimilar parents.
(Just why sexual reproduction is so popular throughout the world of living things is still a hotly-debated question, but the fact remains.

Outbreeding depression
Inbreeding depression
Coefficient of relationship
Consanguinity
Exogamy
Selective breeding
Self-incompatibility in plants (how some plants avoid inbreeding)
F-statistics
Heterozygote advantage ...

For example, including the complete genetic dynamics of in- and outbreeding might lead to completely different conclusions in the above-mentioned theories of the adaptive nature of racism.

Some species support or force allogamy by complex mechanisms, such as genetic self-incompatibility, heterostyly, dichogamy or herkogamy.
Also called xenogamy, outbreeding, and sometimes cross breeding.

See also: Species, Plant, Trans, Organ, Pollination