Statistical support for inferred ancestries, by scenario.

Columns H—M show the genomic distance between ancestor and descendant, measured in number of SNPs between each pair of isolates. Columns N—S show the statistical support for each inferred ancestry, expressed as a p-value and calculated based on maximum likelihood. Summary statistics are presented at the bottom of the table. Descendants with no ancestors can be identified as singleton isolates in the figures of the reconstructed transmission trees Fig 5 and S1 Fig. Singleton isolates have >6 SNP difference to any other isolate). (XLSX)表格的H至M列展示了祖先与子代分离株之间的基因组距离，以每一对分离株之间的单核苷酸多态性（Single Nucleotide Polymorphisms, SNPs）数量进行量化。表格的N至S列则展示了各推断祖先谱系的统计学支持强度，以P值表示，其计算基于最大似然法。汇总统计量位于表格底部。在重建传播树的相关图表（图5与补充图S1）中，无对应祖先的子代分离株可被认定为孤立分离株。此类孤立分离株与其他任意分离株之间的单核苷酸多态性差异均大于6个。（XLSX）