Patent ID: 11685947

Abstract:
Methods and compositions for maintaining DNA contiguity for sequencing is provided. For example, a plurality of partitions is provided comprising a bead, a forward primer oligonucleotide cleaved from the bead, the forward primer oligonucleotide having a bead-specific barcode and a 3′ end specific for and complementary to a first or second adaptor; a reverse primer oligonucleotide having a 3′ end complementary to the first or second adaptor, wherein the forward primer 3′ end and the reverse primer 3′ end are complementary to different adaptors selected from the first adaptor and the second adaptor; and fragments of genomic DNA reacted with an adapter-loaded tagmentase such that the DNA fragments comprise breakpoints in the fragments and an inserted adaptor at the break points, wherein the tagmentase binds the breakpoints to form linked DNA segments in the form of DNA segment-first adaptor tagmentase second adaptor-(DNA segment-first adaptor tagmentase second adaptor)n-DNA segment, where n is any integer and “-” indicates a covalent linkage.