The sequence alignment of 7 mtDNA of Brassica family. The first sequence is just the invisible control mtDNA (oguC). The white and black regions represent the un-matched segment existing in every genome compared with oguC mt DNA. Only when the white region happens to emerge synchronously in other six mitotypes, this segment (black region) is considered to be the unique region.
Wang et al. BMC Genomics 2012 13:675 doi:10.1186/1471-2164-13-675