Author:
Kristi Prohm

Date of Publication:
April 26, 2019

Publication:
The Better Breeding Blog

Excerpt:
Once animals have been selected for breeding, the next step is to decide which are mated to which via a mating system. Some examples of mating systems, each with different intentions, were briefly covered here.

Last week we saw how selecting for a particular allelic expression (ie selecting for ‘best’ phenotype) can change the gene frequency significantly in a population. Genotypic frequencies change indirectly as a result — they ‘tag along’.

Mating systems do however change genotypic frequencies directly, with gene frequencies less affected. These systems fall into two general categories: inbreeding systems and outbreeding systems.

Inbreeding is a mating system which increases homozygosity.
Outbreeding is a mating system which increases heterozygosity.

Read the rest of the article: https://betterbreeding.solutions/index.php/blog/the-effect-of-mating-systems-on-gene-and-genotypic-frequencies-inbreeding