Mapping genome rearrangements and reductions onto an evolutionary tree of the lice. Tree is pruned to include just the ten genera for which mtgenome data is available (full tree provided in Additional File 2). A: Derived gene boundaries mapped parsimoniously; B: Boundaries mapped for a single origin and multiple losses. Derived character states are labeled; A: trnY-cox2; B: rnsL-rnsS; C: trnI-cox1; D: trnN-trnE; E: trnF-nad6/trnF-trnX-nad6; F: rnsL-trnW; G: trnA-trnG; H: trnM-rrnS; I: trnK-nad4; J: trnS-trnW; K: trnL-cob. Characters marked with a "-" are inferred secondary losses, characters marked with "?" are unknown states due to partial mtgenomes. Minicirclular mtgenomes types are indicated, 1: heteroplasmic genome reduction; 2: multi-gene minicircles without conserved sequence blocks; 3: single-gene, minicircles with conserved sequence blocks. * indicates partially sequenced genomes.
Cameron et al. BMC Genomics 2011 12:394 doi:10.1186/1471-2164-12-394