Table 2. Rearrangement statistics of the mouse genome relative to human.

	Genomewide frequency (events per megabase)	Finished frequency (events per megabase)	Genome median size	Finished median size
Inversion	2.0	1.8	814	762
Inversion + local duplication	0.5	1.0	275	302
Inversion + local part duplication	0.7	0.8	517	1235
Local move	0.8	1.0	204	246
Local duplication	1.9	4.0	211	351
Local part duplication	0.9	1.2	343	388
Syntenic move	0.8	1.6	223	322
Syntenic duplication	1.3	1.2	283	286
Syntenic part duplication	0.7	0.8	474	946
Nonsyntenic move	5.0	5.2	104	109
Nonsyntenic duplication	11.9	11.6	235	228
Nonsyntenic part duplication	4.6	4.6	282	256
Mouse 1 base gaps	1,461.8	1,513.4	1	1
Mouse 10 base gaps	39.7	46.4	10	10
Mouse gaps ≥ 100	68.8	80.8	207	201
Double gaps ≥ 100	398.6	419.9	444	411
H likely deletion ≥ 100	230.0	223.5	685	633

The finished columns show rearrangements within the 96.3 megabases of mouse sequence that were finished in this assembly. The genome columns refer to the entire 2.47-gigabase mouse assembly. A move or inversion involves no duplicated sequence. “Duplication” means at least 80% of the aligning bases of the rearranged chain align to multiple places in the human genome. “Part duplication” means some sequence, but <80% is duplicated. The moves and duplications of <100,000 bases are considered local. Syntenic moves and duplications are on the same chromosome but >100,000 bases away and may be inverted as well. Nonsyntenic moves and duplications fill gaps in a chain with sequence from another chromosome. The “single gaps ≥100” row shows gaps of 100 or more bases in mouse and 0 bases in human. The “double gaps ≥ 100” row shows gaps of 100 or more in mouse and >0 bases in human. The “h likely deletion ≥100” row counts gaps in the mouse genome that are not the result of human lineage-specific transposons or Ns, and that are at least 100 bases.