
Mouse repeats by RepeatMasker. The repeat contents were analyzed by RepeatMasker for 277,490 (129 Mb) RPCI-23 mBESs and 175,647 (90 Mb) RPCI-24 mBESs, 258-Mb mouse phase 1–3 sequences, 50,000 (24 Mb) end sequences of a 10-kb sheared DNA plasmid library from dbGSS, and 50,000 (36 Mb) mouse whole-genome shotgun (WGS) reads randomly chosen from the TraceArchive site. mBESs contained a significantly higher fraction of LINE (nearly all were L1); and sheared DNA plasmid ends and WGS reads contained a higher fraction of satellite repeats. DNA = MER1_type + MER2_type; LINE = LINE1 (L1) + LINE2 + L3/CR1; LTR = MaLRs + ERVL + ERV classI + ERV classII; SINE = B1s + B2 − B4 + IDs + MIRs.











