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. 2012 Jul 13;91(1):122–138. doi: 10.1016/j.ajhg.2012.05.024

Table 3.

REAP Kinship-Coefficient Estimates for Relative Pairs with Moderate and Large Ancestry Differences for Population-Structure Setting 4

Outbred Relationship Theoretical Kinship Coefficient Moderate Ancestry Differencesa
 Large Ancestry Differencesb
REAP Estimate (SD) REAP Estimate (SD)
Parent-offspring pair 0.25 0.233 (0.007) 0.232 (0.006)
Second degree 0.125 0.115 (0.006) 0.119 (0.006)
Third degree 0.0625 0.058 (0.005) 0.059 (0.005)

Kinship coefficients were estimated with the REAP kinship-coefficient estimator from Equation 3. Results given in the table are the average of the REAP kinship coefficients (and SDs) calculated with 10,000 simulated random SNPs for population-structure setting 4. The following abbreviations are used: REAP, relatedness estimation in admixed populations; and SD, standard deviation.

a

For relative pairs with moderate ancestry differences, the absolute difference in genome-wide ancestry proportions from subpopulation 1 ranges from 0.125 to 0.375.

b

For relative pairs with large ancestry differences, the absolute difference in genome-wide ancestry proportions from subpopulation 1 ranges from 0.5 to 0.75.