Additional file 4 of Viral ecogenomics across the Porifera

Additional file 4. Similarity percentage analysis (SIMPER) of differences in viral metagenomes associated with sponges with and without photosymbionts, based on Bray-Curtis similarity of genus-level taxonomic assignment of predicted genes. The columns two and three identify the average abundance of viral taxa within each sponge group, the fourth and fifth columns represent the Bray Curtis dissimilarity metric between sponges with and without photosymbionts and its standard deviation, respectively. The sixth column shows the percentage of dissimilarity contribution explained by that viral taxa and the seventh column shows the cumulative Bray Curtis dissimilarity metric for the taxa. The eighth and ninth columns represent the natural hosts for the viral group according the International Committee on Taxonomy of Viruses (ICTV).

附加文件4。基于预测基因属水平分类注释的布雷-柯蒂斯（Bray-Curtis）相似性，针对有无光合共生体海绵相关病毒宏基因组的差异开展相似性百分比分析（Similarity Percentage Analysis, SIMPER）。其中第二、第三列分别标注两类海绵组内病毒分类单元的平均丰度；第四、第五列分别对应有无光合共生体海绵之间的布雷-柯蒂斯相异性指数及其标准差；第六列展示该病毒分类单元对相异性的贡献百分比；第七列展示该类分类单元的累计布雷-柯蒂斯相异性指数；第八、第九列依据国际病毒分类委员会（International Committee on Taxonomy of Viruses, ICTV）的分类标准，标明该病毒类群的自然宿主。