Intronic distributional biases of mutagenic, polymorphic, and all full-length TEs.

*Due to the limited number of cases, all human Alu and L1 mutagenic insertions are included rather than only using elements within 20 bp to SAs.aMutagenic insertions documented in the literature.bAll full-length TEs (see cut-off size of full-length TEs in Table 1) in the reference human/mouse genome.cBased on random computational simulation.dPolymorphic ERV insertions present in the B6 mouse reference genome and at least one other mouse strain.