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Encyclopedia > Coefficient of relationship

In population genetics, Sewall Wright's coefficient of relationship or relatedness is the probability that at a random locus, the alleles there will be identical by descent.


References


Topics in population genetics
Key concepts: Hardy_Weinberg law | Fisher's fundamental theorem | neutral theory
Selection: natural | sexual | artificial | ecological
Genetic drift: small population size | population bottleneck | founder effect
Founders: Ronald Fisher | J.B.S. Haldane | Sewall Wright
Related topics: evolution | microevolution | evolutionary game theory | fitness landscape
List of evolutionary biology topics



  Results from FactBites:
 
Heritability - Wikipedia, the free encyclopedia (2014 words)
Relationship of phenotypic values to additive and dominance effects using a completely dominant locus.
Sir Francis Galton's (1889) data showing the relationship between offsping height (928 individuals) as a function of mean parent height (205 sets of parents).
The Expected Mean Square is calculated from the relationship of the individuals (progeny within a sire are all half-sibs, for example), and an understanding of intraclass correlations.
G2911 Inbreeding: Its Meaning, Uses and Effects on Farm Animals, MU Extension (3389 words)
It is used in the calculation of the coefficient of relationshop because it represents the probability that, in any one generation, an identical gene from a given pair of genes is transitted to each of two particular progeny.
A practical use of the coefficient of relationship is estimating the performance value of an untested animal.
The inbreeding coefficient that is calculated is simply relative to that base and reflects the probable percentage reduction in however many dissimilar gene pairs the average base population animals had.
  More results at FactBites »


 

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