Parameters of genetic diversity and demographic analysis of 27 populations of the Plutella xylostella.

Number of polymorphic sites (S), haplotype diversity (h), nucleotide diversity (π) and the average number of pairwise differences (P) in the analyzed regions of the diamondback moth Plutella xylostella (L.); neutrality tests: Tajima’s D (D), Fu’s F statistics (FS) and expansion (coalescence) time under the sudden expansion assumption in mutation-generations (τ) with 95% confidence interval (CI). Significance values (p) of the parameters were evaluated using 1000 simulations; PSSD: P value for SSD (sum of squared deviations).

小菜蛾（Plutella xylostella (L.)）分析区域内的多态性位点数（S）、单倍型多样性（h）、核苷酸多样性（π）以及平均成对差异数（P）；中性检验包括塔伊马D统计量（Tajima’s D，记为D）、傅氏F统计量（Fu’s F，记为FS），以及基于突然扩张假设、以突变世代数为单位的扩张（溯祖）时间（τ），并给出其95%置信区间（CI）。各参数的显著性值（p）通过1000次模拟进行评估；PSSD为平方偏差和（sum of squared deviations，SSD）对应的P值。