Table 6

Spearman's rank correlations of heterozygosity with skewness in the number of repeats across individuals

1 STR region

2 STR regions

3 STR regions




Di

Tri

Tetra

Di

Tri

Tetra

Tetra




Number of loci

12

73

201

7

12

55

4

γ1 < 0

-0.105

-0.333

-0.291

-0.286

-0.252

-0.124

-

Number of loci

18

60

124

3

3

42

8

γ1 > 0

-0.007

-0.545

-0.043

-

-

-0.225

-0.143


Spearman's rank correlation coefficients (ρ) are shown for comparisons of microsatellite heterozygosity with skewness in the distribution of the number of repeats across individuals in the HGDP-CEPH data set. Microsatellites were classified by the number of separate STR regions embedded in their sequence, by their repeat unit size, and based on whether skewness (γ1) was greater or less than zero. Hyphens indicate comparisons that were not evaluated. For three STR regions, no comparisons were performed for di-nucleotide and tri-nucleotide loci because of small sample size (3 and 2, respectively). Correlations with P < 0.05 are highlighted in bold.

Pemberton et al. BMC Genomics 2009 10:612   doi:10.1186/1471-2164-10-612

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