Table 2. The indicators of genetic diversity and neutrality tests in the populations of O. viverrini from three villages using cox1 sequences.

Populations	No. of samples	Haplotype	S	Genetic diversity		Neutrality tests
				Hd	Pi	Tajima' s D (p value)	Fu's Fs (p value)
Na-Yao	19	12	28	0.871	0.031 +/ 0.016	1.418*	0.238*
Thoong-Heang	18	8	26	0.824	0.026 +/-0.013	0.810*	2.751*
Na-Ngam	19	8	9	0.614	0.009 +/-0.005	-0.359*	-0.515*
Reference isolates	15	3	5	0.514	0.003 +/- 0.002	-0.657*	1.412*
Total populations	69	29	55	0.892	0.024 +/- 0.012	-0.761*	-4.048*

S = no. of segregation sites (polymorphic), Hd = haplotype diversity, Pi = nucleotide diversity. Statistical significance: p < 0.05.

* p>0.05, not significantly different.