Supplemetary Figure 1

Supplementary Figure 1. Inferred LGT events between 13 bacterial classes. (a) LGT heatmap. The colour side bars indicate class. The row and column order is the same. The number of transfers is shown in a white-yellow-red colour scale with darker colours indicating a higher proportion of transfer events. Colour intensity is relative to the largest number of transfers in a row. Relationships with fewer than 5% of the maximum transfer events for a row or only a single transfer event were filtered out. (b) LGT affinity graph of the bacterial classes. Each node of the graph represents a bacterial class scaled relative to the number of represented taxa (2-75). Two genera are connected by an edge if the number of inferred LGT events between them exceeds 5% of their shared genes. The shade of an edge is proportional to this ratio of LGT events to shared genes; black edges indicate relationships with at least as many LGT events as shared genes. The thickness of an edge scales relative to the actual number of inferred transfers (30-1414) with thicker edges indicating more transfers.

补充图1. 13个细菌类群间的推定侧向基因转移（Lateral Gene Transfer, LGT）事件。
（a）LGT热图。侧边色条代表对应的细菌类群，行与列的排序保持一致。转移事件数量以白-黄-红色阶展示，颜色越深代表转移事件占比越高；颜色强度以单一行内的最大转移事件数为基准进行归一化。若某类关联在对应行中的转移事件占比低于5%，或仅存在单次转移事件，则会被过滤剔除。
（b）细菌类群的LGT亲和性网络图。网络图中的每个节点代表一个细菌类群，节点大小以其所包含的分类单元数（2~75）为基准进行缩放。若两个类群间推定的LGT事件数量超过二者共享基因数的5%，则二者之间会以边相连。边的颜色深浅与LGT事件数占共享基因数的比值呈正比；黑色边代表二者间的LGT事件数不少于共享基因数。边的粗细以实际推定的转移事件数（30~1414）为基准进行缩放，边越粗代表转移事件数越多。