Fig. 2.

Sequence differences found among the 18 mammoth mitochondrial genomes with respect to mammoth M1 (GenBank entry EU153444.1). Each vertical bar depicts a nucleotide difference from sample M1, which serves as a reference (and hence has no row). The rectangle labeled 591 shows the location of a 591-bp interval used to assess the diversity among the larger mammoth and modern elephant datasets. We have not tried to assemble the interval denoted by VNTR; thus, this section is absent from the alignment.