Population

Sample size

Haplotype CDH1 (number of individuals observed)

Number of haplotypes

Haplotype diversity (SD)

Nucleotide diversity per site (SD)

Average number of nucleotide differences (k)

Tajima’s D (P value)

^*Chad I

50

40

3

0.500 (0.074)

0.00484 (0.00129)

1.92344

−2.10352 (P < 0.05)

^*Chad II

50

37

9

0.583 (0.076)

0.00542 (0.00129)

2.15020

−2.32076 (P < 0.01)

^*Chad III

48

27

10

0.740 (0.058)

0.00656 (0.00130)

2.59962

−2.00892 (P < 0.05)

^*Chad IV

33

21

8

0.714 (0.073)

0.00744 (0.00166)

2.90128

−2.09414 (P < 0.05)

All populations

181

127

20

0.541 (0.044)

0.00312 (0.00049)

1.21270

−2.37429 (P < 0.01)