Genetic diversity and variation of seven Chinese grass shrimp (Palaemonetes sinensis) populations based on the mitochondrial COI gene

Table 3 Neutrality test and mismatch distribution analysis of P. sinensis populations

Population	Neutrality test		Mismatch distribution analysis					Expansion time
Population	Tajima D	Fu’s Fs	τ	θ₀	θ₁	SSD	HRI	t(Ma)
DL	− 1.659*	− 4.070**	3.000	0.000	0.341	0.003	0.322	0.106
PJ	− 2.057**	− 6.494**	3.000	0.000	0.571	0.010	0.240	0.106
AS	− 1.928*	− 2.448	3.000	0.000	0.421	0.018	0.359	0.106
SL	− 2.201**	− 7.914**	1.387	0.000	99,999.000	0.007	0.070	0.049
SY	− 1.254	− 4.723*	0.768	0.000	99,999.000	0.003	0.098	0.027
SH	− 1.287	− 1.207	0.861	0.000	99,999.000	0.013	0.130	0.030
JN	− 2.153**	− 4.119**	0.469	0.000	9.455	0.007	0.190	0.017
mean	− 1.751*	− 4.425*	1.783	0.000	42,858.255	0.009	0.201	0.063

τ: age of expansion in units of mutational time; θ₀: population size before expansion; θ₁: population size after expansion; SSD: sum of squared deviations; HRI: Harpending’s raggedness index; t: Expansion time; Ma: millions of years ago
*P < 0.05; **P < 0.01

ISSN: 2730-7182