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Prof. Dr. Walther Parson 1,2 1 Institute of Legal Medicine, Innsbruck Medical University, Innsbruck, Austria 2 Forensic Science Program, The Pennsylvania State University, PA, USA Recent Initiatives in Forensic Massively Parallel Sequencing in Europe 7 th Investigator Forum San Antonio, TX, USA May 03 2018

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  • Prof. Dr. Walther Parson1,21Institute of Legal Medicine, Innsbruck Medical University, Innsbruck, Austria

    2Forensic Science Program, The Pennsylvania State University, PA, USA

    Recent Initiatives in Forensic Massively Parallel Sequencing in Europe

    7th Investigator Forum • San Antonio, TX, USA • May 03 2018

  • CSI laboratory (ISO17025)Austrian Central DNA laboratoryEDNAP, ENFSI, Interpol

    DVI laboratory (ISO17025)Tsunami (Sri Lanka, 2004), Chile (1973 regime victims)Missing Mexican students (2014)

    Forensic molecular research laboratoryMitochondrial DNA QC and databasing (EMPOP)STR QC (STRidER)Population genetics (mito, Y)Predictive Forensic Markers (AIMs, phenotypic)New technologies (MS, RAPID, MPS)

    Institute of Legal MedicineMedical University of Innsbruck

  • Short Tandem Repeats

  • DNASeqEx - DNA-STR Massive Sequencing & International Information Exchange

    2 years (2016-2018)

  • Beneficiaries:The Biology Service of the National Institute of Toxicology and Forensic Science, Madrid, Spain

    Antonio Alonso, Pablo Martin, Pedro Caballero

    Department of Forensic Genetics of the Institute of Legal Medicine and Forensics Science, Berlin, GermanyLutz Roewer, Sascha Willuweit, Steffi Köcher

    Institute of Legal Medicine, Medical University of Innsbruck, AustriaWalther Parson, Petra Müller, Burkhard Berger, Martin Bodner

    Non-Beneficiary:Institute of Applied Genetics at the University of North Texas Health Science Center, Texas, USA

    Bruce Budowle

  • Promote the implementation of MPS technology for improved STR profiling and international data exchange

    → Inter-laboratory evaluation studies

    Evaluate the impact of STR sequencing on National DNA databases (EU Prüm) → Alonso et al. 2017 FSIG

    Facilitate and standardize forensic STR sequence allele nomenclature → NOMAUT - lead Berlin (pending)

    Objectives

  • Alonso et al. 2017 FSIG

  • Alonso et al. 2017 FSIG

  • Kit Supplier LaboratoryEarly Access Applied Biosystems Precision ID Globalfiler Mixture ID™ Panel TFS Madrid, Innsbruck

    Early Access Applied Biosystems Precision ID Globalfiler NGS STR Panel for the Ion S5™

    TFS Madrid, Innsbruck

    PowerSeq aSTR/mito Kit Promega InnsbruckPowerSeq 46GY Kit Promega Innsbruck, BerlinForenSeq DNA Signature Prep Kit Verogen Innsbruck, BerlinNGS Prototype Qiagen Innsbruck, Berlin

    Inter-laboratory studies

  • SEQforSTRsAdditional TestingQiagenPromega aSTR/mitoPromega aSTR/Y-STRs

    Concordance ConcordanceSensitivity Sensitivity

    Reproducibility ReproducibilityMixturesCasework

    BerlinMadrid

    Innsbruck

    Interlaboratory studies

  • Köcher, Müller et al, under review

    Allele coverage differences (ACD) over all markers with heterozygote alleles and different DNA inputs. Each rectangle represents the average ACD over three replicates for a particular marker.

  • Globalfiler NGS STR Panel

    Müller et al, manuscriptin submission

    Interlocus balance varies from 22.3% (D22S1045) to 182.7% (TH01) compared to the expected value (100%)

    GMIINTCF

    Interlocus BalanceD

    2 2S1

    0 45

    FGA

    D1 8

    S51

    DY S

    3 91

    AM

    E LY

    vWA

    D1 9

    S43 3

    D4 S

    2 40 8

    D2 1

    S 11

    D3 S

    4 52 9

    D1 3

    S31 7

    D2 S

    1 33 8

    D1 0

    S12 4

    8D

    7 S8 2

    0

    D1 2

    AT A

    6 3D

    5 S2 8

    0 0D

    1 S1 6

    7 7D

    6 S4 7

    4D

    5 S8 1

    8D

    1 4S1

    4 34

    C SF 1

    POD

    1 S1 6

    5 6D

    1 2S3

    9 1D

    6 S1 0

    4 3D

    2 S4 4

    1D

    3 S1 3

    5 8T P

    OX

    D8 S

    1 17 9

    D1 6

    S53 9

    AM

    E LX

    TH0 1

    0

    5 0

    1 5 0

    2 0 0

    2 5 0

    e x p e c te d v a lu e

    % h

    igh

    er

    % lo

    we

    r

    Re

    lati

    ve m

    ark

    er

    cove

    rag

    e (

    %)

    1 0 0

  • Globalfiler NGS STR Panel Stutter ratios range from 5.6 % (TH01) to 18.9 % (D12ATA63)

    Dataset includes single person samples (1 ng DNA input), homo- and heterozygous genotypes as well as isometric allele calls.

    T H0 1

    D 4S 2

    4 08

    D 5S 2

    8 00

    D 3S 4

    5 29

    T PO

    X

    D 2S 4

    4 1

    D 6S 4

    7 4

    D YS 3

    9 1

    D 13 S

    3 17

    C SF 1

    P O

    D 7S 8

    2 0

    D 6S 1

    0 43

    D 16 S

    5 39

    D 8S 1

    1 79

    D 14 S

    1 43 4

    D 21 S

    1 1

    D 1S 1

    6 77

    D 5S 8

    1 8

    D 3S 1

    3 58

    D 10 S

    1 24 8

    vWA

    D 19 S

    4 33

    D 2S 1

    3 38

    D 1S 1

    6 56

    D 12 S

    3 91

    D 18 S

    5 1

    D 22 S

    1 04 5

    D 12 A

    T A6 3FG

    A

    0

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    4 0

    6 0

    8 0

    1 0 0

    Re

    lati

    ve s

    tutt

    er

    he

    igh

    t (%

    )

    GMIINTCF

    Stutter Analysis

    Müller et al, manuscriptin submission

  • Sensitivity Study24 PCR cycles, NIST 2372A run in duplicate using Globalfiler NGS STR Panel

    Standard PCR conditions display the expected decrease in reads/marker relative to DNA input

    Müller et al, manuscriptin submission

    5 0 0 p g 2 5 0 p g 1 2 5 p g 6 2 p g

    0

    2 0 ,0 0 0

    4 0 ,0 0 0

    6 0 ,0 0 0

    G e n o m ic D N A in p u t / a s s a y (p g )

    To

    tal N

    um

    be

    r o

    f R

    ea

    ds

    *

  • Innsbruck BerlinMadridEA Applied Biosystems Precision

    ID Globalfiler NGS STR (Thermo Fisher Sientific)

    Ongoing task: population studies

    PowerSeq GY46 Kit (Promega) PowerSeq GY46 Kit (Promega)

    500 anonymous donors from Spain

    250 anonymous donors from Austria

    150 anonymous donors from Germany

  • Alonso et al 2017 FSIG (published)Alonso et al 2018 Electrophoresis(under revision)Köcher, Müller et al 2018 FSIG (under review)Müller et al 2018 FSIG (in submission)

    Poster Presentations:

    Müller et al ISFG Seoul 2017

    Barrio et al ISFG Seoul 2017

  • former

  • 2001 Collaborative ENFSI DNA WG population study SGMplus (ABI)24 populations, 5700 samples

    2003 QC-checked - Gill et al (2003) FSI2004 STRbase V1 (GMI funded)2016 STRidER (EU-funded)

    History

  • https://strider.online/

  • + STR Sequence Guide as static ESM with alignment examples

  • + revised STR Sequence Guide as dynamic document at STRidER

  • Audit of GRCh38 reference genome builds released between 2013 - 2017Revised repeat region sequence structure summariesInverted multiple allele Y-STRs, mobility shift SNPs, flank indels, …+ 34 aSTRs (total of 71 aSTRs)+ 22 Y-STRs (total of 47 Y-STRs)

  • NCBI BioProject—STRseq and STRidERCollaboration in QC and exchange of data

  • https://strider.online/

  • 52,982 CE profilessubmitted to STRidER for QCsince Aug 2017 + 398 MPS

    profiles

    2/3 from China

  • 48 datasets submitted for QC

    • 10 datasets passed• 4 datasets were retracted by submitter• 2 datasets were rejected by STRidER• remaining datasets in various stages of progress

    a single CE dataset without errors detected by STRidER

    extreme example: CE dataset (n = 628) containing 40 identical pairs and 4 identical trios

  • MONOPOLY 2016 - STEFA - WP G7Empowering forensic genetic DNA databases for the interpretation of

    next generation sequencing profiles (dna.bases)

    STRidER & EmPOP

    Jan 2018 - Dec 2019

    Sequence alignmentsIncrease sample sizeIncrease markers/regionsFurther develop QC toolsUser-friendly access

  • Mitochondrial DNA

  • History1999 Idea and concept for a centrally curated mtDNA database

    Inspection of published data - high error rates

    2004 Collaborative EDNAP study on quality of mtDNA sequencingParson et al 2004 FSI - 10% error rate - corrective actions

    2006 EMPOP V1 (GMI funded) Development of software tools for QC (e.g. QMN, Parson and Dür 2007 FSIG)

    2010 EMPOP V2 (GMI funded)Introduction of alignment-free sequence searches (SAM, Röck et al 2011 FSIG)

    2015 EMPOP V3 (GMI funded)Haplogrouping, programming update, new features

    2018 EMPOP V4 (EU-funded)Updated search engine, alignment tool (SAM2, Huber et al in prep)

  • New developments

    SAM 2Development of software for

    automated phylogenetic alignment and consistent nomenclature of mitochondrial DNA sequences

  • Different mtDNA nomenclature between forensic laboratories (and betweenscientific disciplines)

    False exclusions in forensic practice

    Mitotypes not directly comparable

    Need software to harmonize alignment and nomenclature

    SAM2 - Motivation

  • Alignment can be ambiguous

    WAC091

    rCRS

    16189

    16188T 16189Cphylogenetic alignment (Bandelt & Parson 2008)

    16188- 16193+CFormal alignment rules (Wilson et al 2002)=Apply Max ParsimonyIndels > Transversions > Transitions3’ Alignment

    Phylogenetic ruleAnchor 16189 and 310

    3’ Alignment

    123

    16189x

  • Consequences of alignment ambiguity

    1. Forensic interpretation2. Database searches

  • Effect of alignment on forensic interpretation*

    Exclusion Inconclusive Inclusiontwo or more differences one difference identical (+Het)

    16188T 16189Cphylogenetic alignment (Bandelt & Parson 2008)

    16188- 16193+CFormal alignment rules (Wilson et al 2002)

    3 differences between both haplotypes* Carracedo et al FSI 2000, SWGDAM 2013, Parson et al FSIG 2014

  • Effect of alignment on database searches

    Search method 16188T 16189C 16188- 16193+CrCRS-coded 28 matches 0 matches

    EMPOP V3 R11; N = 34,617

  • Alignment-free searches in EMPOP

    Alignment-free sequence queries guarantee that a haplotype is not missed in a database search

    SAM on EMPOP since V2.0 (04/2010)

  • Solving the database issue

    SAM on EMPOP since V2.0 (04/2010)

    Search method 16188T 16189C 16188- 16193+CrCRS-coded 28 matches 0 matches

    EMPOP V3 R11; N = 34,617

    Search method 16188T 16189C 16188- 16193+CSAM 28 matches 28 matches

    EMPOP V3 R11; N = 34,617

  • But …..

    alignment problem not yet addressed

    we need softwareto solve the issue

  • AlignmentTTCTTTCATGGGGAAGCAGATTTGGGTACCACCCAAGTATTGACTCACCCATCAACAACCGCTATGTATTTCGTACATTACTGCCAGCCACCATGAATATTGTACGGTACCATAAATACTTGACCACCTGTAGTACATAAAAACCCAATCCACATCAAAACCCCCCCCCCCATGCTTACAAGCAAGTACAGCAATCAACCCTCAACTATCACACATCAACTGCAACTCCAAAGCCACCCCTCACCCACTAGGATACCAACAAACCTACCCACCCTTAACAGTACATAGTACATAAAGCCATTTACCGTACATAGCACATTACAGTCAAATCCCCTCTCGCCCCCATGGATGACCCCCCTCAGATAGGGGTCCCTTGACCACCATCCTCCGTGAAATCAATATCCCGCACAAGAGTGCTACTCTCCTCGCTCCGGGCCCATAACACTTGGGGGTAGCTAAAGTGAACTGTATCCGACATCTGGTTCCTACTTCAGGGCCATAAAGCCTAAATAGCCCACACGTTCCCCTTAAATAAGACATCACGATGGATCACAGGTCTATCACCCTATTAACCACTCACGGGAGCTCTCCATGCATTTGGTATTTTCGTCTGGGGGGTATGCACGCGATAGCATTGCGAGACGCTGGAGCCGGAGCACCCTATGTCGCAGTATCTGTCTTTGATTCCTGCCTCATCCTATTATTTATCGCACCTACGTTCAATATTACAGGCGAACATACTTACTAAAGTGTGTTAATTAATTAATGCTTGTAGGACATRATAATAACAATTGAATGTCTGCACAGCCGCTTTCCACACAGACATCATAACAAAAAATTTCCACCAAACCCCCCCTCCCCCCGCTTCTGGCCACAGCACTTAAACACATCTCTGCCAAACCCCAAAAACAAAGAACCCTAACACCAGCCTAACCAGATTTCAAATTTTATCTTTTGGCGGTATGCACTTTTAACAGTCACCCCCCAACTAACACATTATTTTCCCCTCCCACTCCCATACTACTAATCTCATCAATACAACCCCCGCCCATCCTACCCAGCACACACNN--CGCTGCTAACCCCATACCCCGAACCAACCAAACCCCAAAGACACCCCCCCCACA

    16024

    576

    16181C 16182C 16183C 16189C 16213A 16217C 16242T 16261T 16292T 16301T 16519C61A 62A 73G 183G 263G 309.1C 309.2C 309.3C 315.1C 323N 324N 523Del 524Del

    953,110(24+1 mutations)

    16181C 16182C 16183C 16189C 16213A 16217C 16242T 16261T 16292T 16301T 16519C61A 62A 73G 183G 263G 308.1C 309.1C 309.2C 315.1C 323N 324N 523Del 524Del

  • Code programming is accomplished

    Internal and external testing is accomplished

    Manuscript in preparation

    Adaptation of EMPOP in preparation

    SAM2 - Progress

  • SAM2 - Alignment changes

    0.52%

    Huber et al in prep

  • Meetings 2017/2018

    SAM2 - SWGDAM Meeting, Fredericksburg, VA, Jan 2017EMPOP workshop - GEDNAP Meeting, Giessen, Germany, Feb 2017EMPOP-QC/SAM2 - mitoDB meeting, MPI Jena, Germany, Feb 2017EMPOP-Update - EDNAP, Vilnius, Lithuania, Apr 2017 EMPOP workshop - Rio de Janeiro, Brazil, May 2017EMPOP-QC/SAM2 - Genome Variants, Santiago de Compostela, Spain, Jun 2017 EMPOP workshop - ISFG World Conference, Seoul, South Korea, Aug 2017EMPOP training - NFI, The Hague, Netherlands, Sep 2017EMPOP-Update - EDNAP, Athens, Greece, Oct 2017

    SAM2 - SWGDAM Meeting, Woodbridge, VA, Jan 2018EMPOP training - HSA, Singapore, Jan 2018EMPOP QC - Monopoly 16 project dna.bases, Innsbruck, Austria, Jan 2018EMPOP workshop - GEDNAP Meeting, Basel, Switzerland, Feb 201811th Haploid Marker Meeting, Bydgoszcz, Poland, May 2018

  • EMPOP training HSA Singapore

  • 11th Haploid Markers Meeting, May 17-19 2018

    ‘Inferring Ancestry from DNA’Invited speakersChristopher PhillipsMark JoblingChris-Tyler Smith

    44 oral presentations64 posters

    Bydgoszcz [ˈbɨdgɔʃʧ] ‘bid’ ‘gosh’

    https://de.wikipedia.org/wiki/Liste_der_IPA-Zeichen

  • Forensic DNA Phenotyping

  • STR typing

    appearanceancestry

    age

    Phenotypic markers

    Cases without database match

    Composite Sketch

  • Kayser et al AJHG 2008

    Forensic DNA Phenotyping

    Kayser et al FSIG 2015

    OCA2/HERC2

  • Slide kindly provided by C. Phillips, USC Spain

    Ancestry Informative DNA Markers

  • Eduardoff et al FSIG (2015)

    Ancestry Informative DNA Markers

  • Age estimation

    2012

  • Forensic application of MethAge estimation

    Zbiec-Piekarska et al FSIG 2015

  • Freire-Aradas et al FSR 2017 Vidaki and Kayser Gen Biol 2018

  • Manfred Kayser (Coordinator) Rotterdam, NEDWojciech Branicki Krakow, POLChris Phillips, Angel Carracedo S. de Compostela, ESPWalther Parson Innsbruck, AUTMichael Nothnagel Cologne, GERBarbara Prainsack Vienna, ATPeter M. Schneider Cologne, GERIngo Bastisch Wiesbaden, GERFrançois-Xavier Laurent Lyon, FRATitia Sijen The Hague, NEDJohannes Hedman Linkoping, SWEShazia Khan London, UKMagdalena Spólnicka Warsaw, POL

    www.visage-h2020.eu

    05/2017 - 04/2021

    This project received funding from the European Union’s Horizon 2020 Research and Innovation programme under grant agreement No 740580

  • VISAGE – Main Goals

    1) Known markers + explore new markers on appearance, age and ancestry

    2) Design, develop and validate prototype tools

    3) Design interpretation software considering combined stats of all information

    4) Identify ethical issues and make recommendations

    5) Implement in routine casework

    6) Training and dissemination

  • Tool development in VISAGETe

    chni

    cal R

    eadi

    ness

    Leve

    l Basic Research

    Final Product

    1

    10

    5

    The VISAGE - Consortium is developing genotypingand statistical prototype tools, forensically validateand implement them into forensic practice forpredicting appearance, age, and ancestry from DNAtraces and study its ethical, societal & regulatorydimensions (period: 05/2017-04/2021).Tool 1: Appearance & Ancestry (SNP multiplex)Tool 2: Age (quantitative methylation)

  • Multiplex design/optimization Check with Final evaluationPrimer design

    StructureDimer formationNo of primer poolsReaction conditionsEfficiencySensitivity

    Primer design / PCR optimization

  • Multiplex PCR

    target DNAgenomic DNA

    Library Prep

    Sequencing

    libraries

    Multiplex design/optimization

    primer poolshow many reactions

    optimize PCR

    Adapt to different library

    prep commercial products

    How many samples per chipOverall performance

    Coverage requirements

    Ancestry & Appearance Tool

  • SNP multiplex optimization*Coverage

    1 ng 2 ng

    1 ng

    2ng

    * 217 gAIMs (C. Phillips, USC), 2800M (Promega), Ion S5, 530 V1, DL8 AmpliSeq (TFS)

    norm

    alize

    d co

    vera

    ge

    p < 0.001 D=0.13364, p < 0.05

  • SNP multiplex optimization*Strand bias

    * 217 gAIMs (C. Phillips, USC), 1 ng 2800M (Promega), 16 replicates, Ion S5, 530 V1, DL8 AmpliSeq (TFS)

    Mean = 0.497 SNPs > mean - 114 SNPs 0.55 – 26 (~12%)

  • SNP multiplex optimization*Base misincorporation

    * 217 gAIMs (C. Phillips, USC), 1 ng 2800M (Promega), 16 replicates, Ion S5, 530 V1, DL8 AmpliSeq (TFS)

    % Mean total misinc. = 0.175% SNPs > mean - 55 (~25.3%)31 alt. allele base8 random bases6 alt. and random bases

  • SNP multiplex optimization*Baseline noise

    * 217 gAIMs (C. Phillips, USC), 14 neg cons, Ion S5, 530 V1, DL8 AmpliSeq (TFS)

    Mean in all SNPs = 1.56 reads SNPs < mean - 178 (~82%)5 SNPs > 10 reads2 SNPs > 20 reads ratio described allele/random base = 0.99

  • SNP multiplex optimization*Sensitivity

    * 217 gAIMs (C. Phillips, USC), 2800M (Promega), Ion S5, 530 V1, DL8 AmpliSeq (TFS)

    50 p

    g

  • Multiplex PCR

    genomic DNA

    target DNA

    Library Prep Sequencing

    Bissulfiteconversion

    https://www.gatc-biotech.com

    Age estimation by quantitative methylation

  • MethAge tool

    Test different bisulfite conversion kitsTest primer pairs in singleplexOptimize PCR temperature conditions

    Multiplex all primers and sequenceTest alternative primer pairsAdjust PCR protocolAdjust primer concentrationTest PCR enhancers

  • MethAge toolConversion time

    5 bisulfite conversion kits

  • MethAge toolEfficiency of bisulfite conversion

    Kit 1 Kit 2 Kit 3 Kit 4 Kit 5

    PCR MM 1

    PCR MM 2

    Bisulfite conversion kits

    200 ng input

  • MethAge toolEfficiency of bisulfite conversion

    Kit 1

    Bisulfite conversion kits

    Kit 2 Kit 3 Kit 4 Kit 5

    100 ng input

    PCR MM 1PCR MM 2

    Kit 1 Kit 2 Kit 3 Kit 4 Kit 5 Kit 1 Kit 2 Kit 3 Kit 4 Kit 5

    50 ng input 10 ng input

  • MethAge toolMultiplex PCR - 5 amplicons

    200 ng input DNA, ca. 15 ng bisulfite converted DNA for MP-PCR, sequence-verified

  • MethAge toolMultiplex PCR optimization - 4 amplicons

    200 ng input DNA, ca. 15 ng bisulfite converted DNA for PCR, sequence-verified

  • MethAge toolMultiplex PCR optimization - 4 amplicons

    200 ng input DNA, ca. 15 ng bisulfite converted DNA for PCR, sequence-verified

    M 1 M 2 M 4 M 5

  • MethAge toolOptimized PCR multiplex - 4 amplicons

    200 ng input DNA, ca. 15 ng bisulfite converted DNA for PCR, sequence-verified

    M 1 M 2 M 4 M 5 M 1 M 3 M 4 M 5

  • MethAge toolEnhancer test - 4 amplicons

    200 ng input DNA, ca. 15 ng bisulfite converted DNA for PCR, sequence-verified

    M 1 M 2 M 4 M 5 M 1 M 3 M 4 M 5

  • Acknowledgements

    FP7-SEC-2011-285487

    Translational Research project L397 EMPOP–an innovative human mtDNA database

    2011-MU-MU-K402

    Maximizing mtDNA Testing Potential with the Generation of High-Quality mtGenome Reference Data

    Richard ScheithauerBurkhard Berger Harald NiederstätterCordula Berger Lisa SchnallerMartin Bodner Christina StroblMayra Eduardoff Catarina XavierGabriela HuberNicole HuberPetra Müller

    Research project P22880-B12Genetic discovery of an early medieval Alpine population

    Home/2014/ISFP/AG/LAWX/4000007135

    DNA-STR Massive Sequencing & International Information Exchange

    740580Visual Attributes Through Genomics

    Monopoly 2016, STEFA, 779485Steps Towards a European Forensic Science Area; WP7; Empowering Forensic Genetic DNA Databases for the Interpretation of Next Generation Sequencing Profiles (dna.bases)

  • ISFG Commission on MPS of STRsISFG Commission on STRidER

    ENFSI laboratories

    Peter Gill Christina StroblIngo Bastisch Nicole HuberDavid Ballard Arne DürChris Phillips Harald NiederstätterKatherine Gettings Burkhard BergerJonathan King Petra MüllerMartin Bodner Lisa SchnallerCatarina Xavier Mayra EduardoffAntonia HeideggerMaria de la Puente

    Acknowledgements

  • THANK YOU!!!

    Slide Number 1Slide Number 2Slide Number 3Slide Number 4Slide Number 5Slide Number 6Slide Number 7Slide Number 8Slide Number 9Slide Number 10Slide Number 11Slide Number 12Slide Number 13Slide Number 14Slide Number 15Slide Number 16Slide Number 17Slide Number 18Slide Number 19Slide Number 20Slide Number 21Slide Number 22Slide Number 23Slide Number 24NCBI BioProject—STRseq and STRidER�Collaboration in QC and exchange of dataSlide Number 26Slide Number 27Slide Number 28Slide Number 29Slide Number 30Slide Number 31MONOPOLY 2016 - STEFA - WP G7�Empowering forensic genetic DNA databases for the interpretation of �next generation sequencing profiles (dna.bases) Slide Number 33Slide Number 34Slide Number 35Slide Number 36Slide Number 37Slide Number 38Slide Number 39Slide Number 40Slide Number 41Slide Number 42Slide Number 43Slide Number 44Slide Number 45Slide Number 46Slide Number 47Slide Number 48Slide Number 49Slide Number 50Slide Number 51Cases without database matchForensic DNA PhenotypingAncestry Informative DNA MarkersAncestry Informative DNA MarkersAge estimationForensic application of MethAge estimationSlide Number 58Slide Number 59VISAGE – Main GoalsTool development in VISAGEPrimer design / PCR optimizationAncestry & Appearance ToolSNP multiplex optimization*�CoverageSNP multiplex optimization*�Strand biasSNP multiplex optimization*�Base misincorporationSNP multiplex optimization*�Baseline noiseSNP multiplex optimization*�SensitivityAge estimation by quantitative methylationMethAge toolMethAge tool�Conversion timeMethAge tool�Efficiency of bisulfite conversionMethAge tool�Efficiency of bisulfite conversionMethAge tool�Multiplex PCR - 5 ampliconsMethAge tool�Multiplex PCR optimization - 4 ampliconsMethAge tool�Multiplex PCR optimization - 4 ampliconsMethAge tool�Optimized PCR multiplex - 4 ampliconsMethAge tool�Enhancer test - 4 ampliconsSlide Number 79Slide Number 80Slide Number 81