Matrix of nucleotide and protein distances between NS1 groups, subgroups and lineages in db4535 and pdb4535, respectively.

The lower left corner corresponds to nucleotide sequences and the upper right corner corresponds to amino acid sequences. Lineages (A4 and A5) are highlighted in bold. Suspected recombinant sequences were excluded from these analyses.左下角对应核苷酸序列（nucleotide sequences），右上角对应氨基酸序列（amino acid sequences）。谱系（Lineages）A4与A5以粗体高亮显示。疑似重组序列已被排除在本次分析之外。