`
`Extract and isolate cell free polymicleotides
`from badily fluid
`
`102
`
`i fag double stranded polynucicotides with duplex
`tags (“Watson”strand tag distinguishable from
`“Crick” strand tag)
`
`Generate. sequence reads for tagged
`polynucleotide strands
`
`
`
`Reduce and/or track redundancy of reads to
`correspond to original strands
`
`Mapreads to selected locus or loci in genome
`
`
`
`164
`
`106
`
`108
`
`110
`
`Group reads into “Pairs” and “Singicts’”’:
`-Pairs are reads from complementary strands of
`original double stranded polynucleotides
`-- Singlets are reads for which there is no
`sequence read from the complementary strand of|\
`the original double stranded molecule
`\aq9
`
`100
`
`Determine quantitative measure of Pairs and
`Singlets mapping to each selected locus (also
`optionally read depth of paired and unpaired
`strands)
`
`
`
`
`
`
`
`
`Estimate number of Unseen polynucicotides in
`original population mapping to each locus
`
`
`Estimate number of Total polynucleotides in
`original population mapping to each locus
`
`
`
`Estimate Copy Member Variation at cach locus
`
`
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`Fig. I
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`\ 44
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`120
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`2290 Total
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`720 singlets 90 unseen
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`4/11
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`10/44
`
`Provide cell free polynucleotides from bedily
`fluid of (a) a test sarnple and (b)} a control
`sarople
`
`Tag polynucleotides. Tag includes a source
`identifier (test or contro) and, optionally, a
`further identifier (optionally with duplex tags).
`Polynucicotides can be uniquely or non-uniquely
`tagged
`
`Pool tagged test and taggedcontrol
`polynucleotides at desired ratio (usually greater
`amount oftest)
`
`SOO
`
`Generate sequence reads from pooled test and
`control polynucleatides
`
`Reduce and/or track redundancy of reads to
`correspond to original molecules
`
`
`
`804
`
`7 806
`
`808
`
`810
`
`Quantify original molecules from each of test
`and control mapping te one or more genetic loci.
`(Can include normalizing against a reference
`locus}
`
`a function of test:control comparison
`
`Estimate copy number variation at each locus as
`y
`
`‘ig. 8
`
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`14/14
`
`< §0 nucleotides
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`Fig. 9A
`
`Fig. 9B
`
`Primer hybridization site
`
`Barcode
`
`sequence
`
`< 16 nucleotides
`
`Me
`
`rarAa
`
`Tagged
`polynucleotide
`
`Fig. 9C SFr
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`
`Sample identification motif
`Se
`
`Sample identification motif f
`
`
`Sequencer motit
`
`Sequenecr motit
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`