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

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

Population Neutrality test Mismatch distribution analysis Expansion time
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
  1. 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
  2. *P < 0.05; **P < 0.01