Population expansion and gene flow in Giardia duodenalis as revealed by triosephosphate isomerase gene

Parasites & Vectors

Table 2 Genetic diversity and test of neutrality of G. duodenalis for worldwide population

Population	No of sequences	No of sites	S	h	Hd	Pi	D	D*
Assemblage A
Australia	36	476	51	31	0.98254	0.00704	−2.63963*	−4.81625*
America	74	476	21	14	0.58312	0.00314	−1.98395*	−4.24360*
Asia	104	476	18	14	0.46004	0.00218	−2.04851*	−3.40876*
Europe	33	476	30	10	0.80682	0.01279	−0.63810	−0.60189
Africa	37	476	23	14	0.84234	0.00599	−1.65001	−1.89922
Overall	284	476	100	67	0.78072	0.00564	−2.51918*	−7.40589*
Assemblage B
Australia	28	489	25	26	0.99471	0.00882	−1.18578	−2.34957
America	65	489	51	33	0.93365	0.00931	−1.92659*	−4.16927*
Asia	131	489	86	86	0.97510	0.01216	−2.01663*	−5.90951*
Europe	60	489	48	39	0.91073	0.00867	−1.97667*	−4.54163*
Africa	40	489	42	30	0.96795	0.00858	−2.06524*	−4.28121*
Overall	324	489	155	176	0.96600	0.01083	−2.40897*	−8.98197*
Assemblage E
Australia	32	468	34	29	0.99194	0.01059	−1.55162	−1.98732
America	21	468	11	11	0.81905	0.00435	−1.16746	−1.24885
Asia	79	468	30	30	0.91853	0.00539	−1.82865*	−3.99122*
Europe	11	468	17	11	1.00000	0.01119	−0.43806	−0.62712
Africa	62	468	42	10	0.84234	0.00563	−2.36766*	−5.72396*
Overall	205	468	85	66	0.82443	0.00709	−2.39843*	−8.00707*

Number of polymorphic sites (S), number of haplotypes (h), haplotype diversity (Hd), nucleotide diversity (Pi), Tajima’s D (D), Fu and Li’s D (D*) tests. Value with asterisks (*) indicate statically significant result (p-value < 0.05)

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