Figure 1

Phylogenetic Placement of New L7 Lineage. Major clades are collapsed, showing the existing (red) and newly discovered (blue) clades. Defining mutations are shown for L5'7, L5, L7, and the six major branches in L7 (L7a, L7a*, L7a1, L7b, L7b1, L7b2). Mutations formerly defining L5b2 that actually define L7 are highlighted in red.