This tracks examples of bacteria and archaea syntenic dotplots which do not show the classical x-alignment pattern of inversions. One possible methodological reason for these non-x-alignments is mis-assembly.
Genome-wide random orientation
Syntenic dotplot generated by SynMap between two species of Methanocaldococcus: Methanocaldococcus fervens strain AG86 (x-axis); Methanocaldococcus sp. strain FS406-22 (y-axis). Results can be regenerated at: http://genomevolution.org/r/oroSyntenic dotplot generated by SynMap between two species of Thermococcus: gammatolerans strain DSM 15229; EJ3 (x-axis); onnurineus strain NA1 (y-axis). Results can be regenerated at: http://genomevolution.org/r/os7