[i] ^aC57BL/6J carries a M.m. musculus Y chromosome of Asian (M.m. molossinus) origin on a predominantly M.m. domesticus genetic background.

[ii] ^bIndelA position calculated from EcoRI consensus start site.

[iii] ^cMonomers within 5% range of 60 bp (57–63 bp) used in calculation. Includes all monomers in HOR.

[iv] ^dMonomers within 5% range of 120 bp (114–126 bp) used in calculation. Includes all monomers in HOR.

[v] ^eCENPB box motif is found in a subset of mouse minor satellite monomers and a subset of human HOR α-satellite monomers at all centromeres except the Y.

[vi] ^fCpG methylation sensitive in genomic DNA.