Figure 2

Number of nucleotide gaps assess relative assembly incompleteness. A) Shows the total number of gaps in genes and the surrounding 10,000 base pair regions upstream and downstream (collectively called gene territories). B) Shows the number of such gene territories with gaps. In both the panels, different species assemblies are colored differently, with the budgerigar assemblies shown in dark blue. The budgerigar assemblies with the “-mega” suffix are optical map enhanced versions of the Budgerigar_v6.3 and PBcR assemblies. The budgerigar assemblies have the highest numbers of gapless gene territories (right panel) and the fewest number of gaps of all assemblies except the recent chicken v4 assembly, which used a similar technology (left panel).