Coefficient of inbreeding
(Redirected from Inbreeding coefficient)
The coefficient of inbreeding (F) is a measure of the probability that two alleles at a given locus are identical by descent. It is a key concept in the field of population genetics and is used to quantify the level of inbreeding within a population. The coefficient of inbreeding is particularly important in the study of genetic diversity, conservation biology, and animal breeding.
Calculation[edit | edit source]
The coefficient of inbreeding is calculated using pedigree analysis. It is defined as the probability that an individual has two alleles at a locus that are identical by descent from a common ancestor. The formula for calculating the coefficient of inbreeding is:
- F = Σ (1/2)^(n1+n2+1)
where:
- n1 is the number of generations from the common ancestor to one parent.
- n2 is the number of generations from the common ancestor to the other parent.
Implications[edit | edit source]
High levels of inbreeding can lead to inbreeding depression, which is the reduced biological fitness in a given population due to inbreeding. This can result in an increased prevalence of genetic disorders and a decrease in genetic variation. In contrast, low levels of inbreeding can help maintain genetic diversity and the overall health of a population.
Applications[edit | edit source]
The coefficient of inbreeding is used in various fields, including:
- Animal breeding: To manage breeding programs and avoid high levels of inbreeding.
- Conservation biology: To maintain genetic diversity in endangered species.
- Human genetics: To study the effects of inbreeding in human populations.
Related Concepts[edit | edit source]
See Also[edit | edit source]
References[edit | edit source]
External Links[edit | edit source]
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