outbreeding

Scientific  

/ out′brē′dĭng /

1. The mating or breeding of distantly related or unrelated individuals. Outbreeding often produces offspring of superior quality because it increases homozygosity (the occurrence of two alleles for the same trait at corresponding positions on homologous chromosomes), thereby sharply reducing the risk of deleterious recessive genes being expressed. Crossbreeding is the most common form of outbreeding.

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Example Sentences

In the case of the Savannah sparrow, such outbreeding reduced adaptation to the environment.

From Science Daily

"It's actually quite a hard thing to demonstrate the effects of outbreeding," Bowie emphasized.

From Science Daily

"Having access to the historical series of the museum specimens from before saltmarshes were transformed in the bay to compare with modern birds helps you make the case that outbreeding depression is having a significant effect on the populations. The genetic diversity looks great, but it's masking an outbreeding depression effect."

From Science Daily

Thanks to this and other conservation efforts like those at the Oakland Zoo's outbreeding program and the Department of the Interior's Bison Working Group, the North American population is slowly rebounding.

From Salon

The colonial powers justified their atrocities by fomenting a moral panic about “barbaric”, “degenerate” people “outbreeding” the “superior races”.

From The Guardian