Fig. 4

Comparative plots of the exclusive sequences detected on the Bs of (a) A. mexicanus (b) A. correntinus and (c) A. flavolineata. The bar charts (left) of five representative blocks compare the relative abundance of mapped reads for 0B (blue), 1B (orange) and 2B (green) genomes. The coverage plots (middle) as an example block for each species depicts the reads depth confirm the exclusive representation on 1B and 2B genomes. The mean coverage plots (left) of all exclusive blocks show the fraction of the genome with respective coverage. Notice the mapped reads, reads depth and mean coverage of 0B genomes in each species is negligible, thus confirming the absence of these sequences on A chromosomes and specificity to B chromosomes