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Relatedness Coefficient

Definition
AI-generated

Relatedness coefficient usually means the IBD probability denoted r in pedigree genetics—the same quantity as the [coefficient of relationship](../c/coefficient-of-relationship.md).

Topics
Population genetics
Related
Coefficient of relatedness (r) Coefficient of Relationship Identity by Descent (IBD)

Why it matters in GWAS

Software reporting “relatedness” or r should be tied explicitly to the convention used (pedigree expectation versus genotype estimate).

Example usage

"The pipeline flagged pairs with estimated relatedness coefficient above 0.45."

Coefficient of relatedness (r) Coefficient of Relationship Identity by Descent (IBD) Kinship Coefficient
Related-term network

Click any node to open that term page.

Node order. The current term is first. Next come every page linked from Related terms, in the same top-to-bottom order as that list. Then new terms appear in two-hop layers: for each of those direct neighbors (in that same order), their related terms are appended if not already listed. A third pass does the same for two-hop nodes. The walk stops when a fixed maximum number of nodes is reached.

References

  • Thompson EA. (2013). Identity by descent: variation in meiosis, across genomes, and in populations. Genetics.
← Relatedness and Sample Structure Relative Risk (RR) →

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