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. 2012 Aug 2;8(8):e1002868. doi: 10.1371/journal.pgen.1002868

Figure 2. Neighbor-joining trees showing relationships among sequences sampled from S. meliloti (blue squares) and S. medicae (red circles) for genes showing evidence of horizontal gene transfer.

Figure 2

The largest three regions of transferred genes are shown A) 11 genes from pSMED02, concatenated length of 9,291 bp, B) 69 genes from pSMED02, concatenated length of 69,048 bp, C) 23 genes from pSMED01, concatenated 22,493 bp, and D) genes on pSymB for which there was no evidence of horizontal transfer between species (944 genes concatenated 977,757 bp). Black dots indicate major branches with bootstrap support >95%, bootstrap support for shorter branches within single-species clades not shown.