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Results: 5

1.
Figure 4

Figure 4. From: Investigating population stratification and admixture using eigenanalysis of dense genotypes.

Top 16 principal components for the Howard University Family Study data using EIGENSOFT. All 16 principal components are statistically significant according to Tracy–Widom statistics. The bottom right panel shows the scree plot.

D Shriner. Heredity. 2011 November;107(5):413-420.
2.
Figure 1

Figure 1. From: Investigating population stratification and admixture using eigenanalysis of dense genotypes.

Genealogical representation of the coalescent simulations. (a) Two populations with a single divergence event 2tNe generations ago. (b) Three populations with the first divergence event 2t1Ne generations ago and the second divergence event 2t2Ne generations ago.

D Shriner. Heredity. 2011 November;107(5):413-420.
3.
Figure 5

Figure 5. From: Investigating population stratification and admixture using eigenanalysis of dense genotypes.

Top 16 principal components for the Howard University Family Study data using Velicer's minimum average partial test. Only the top principal component is statistically significant. The bottom right panel shows the scree plot.

D Shriner. Heredity. 2011 November;107(5):413-420.
4.
Figure 2

Figure 2. From: Investigating population stratification and admixture using eigenanalysis of dense genotypes.

Representative projections of simulated data for two populations. (ac) The divergence event between populations A (red circles) and B (blue circles) occurred 0 generations ago. (df) The divergence event occurred 2Ne generations ago. (a, d) Analysis of populations A and B. (b, e) Analysis of admixed individuals (gray circles) with average individual admixture proportions 78.2% population A and 21.8% population B. (c, f) Combined analysis of admixed individuals, population A and population B.

D Shriner. Heredity. 2011 November;107(5):413-420.
5.
Figure 3

Figure 3. From: Investigating population stratification and admixture using eigenanalysis of dense genotypes.

Representative projections of simulated data for three populations. (ac) The divergence event between populations B (blue circles) and C (black circles) occurred 0.0002Ne generations ago and the divergence of population A (red circles) occurred 0.002Ne generations ago. (df) The divergence event between populations B and C occurred 2Ne generations ago and the divergence of population A occurred 20Ne generations ago. (a, d) Analysis of populations A, B and C. (b, e) Analysis of admixed individuals (gray circles) with average individual admixture proportions 10% population A, 45% population B and 45% population C. (c, f) Combined analysis of admixed individuals, population A, population B and population C.

D Shriner. Heredity. 2011 November;107(5):413-420.

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