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        If you use plots from MultiQC in a publication or presentation, please cite:

        MultiQC: Summarize analysis results for multiple tools and samples in a single report
        Philip Ewels, Måns Magnusson, Sverker Lundin and Max Käller
        Bioinformatics (2016)
        doi: 10.1093/bioinformatics/btw354
        PMID: 27312411

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        About MultiQC

        This report was generated using MultiQC, version 1.7

        You can see a YouTube video describing how to use MultiQC reports here: https://youtu.be/qPbIlO_KWN0

        For more information about MultiQC, including other videos and extensive documentation, please visit http://multiqc.info

        You can report bugs, suggest improvements and find the source code for MultiQC on GitHub: https://github.com/ewels/MultiQC

        MultiQC is published in Bioinformatics:

        MultiQC: Summarize analysis results for multiple tools and samples in a single report
        Philip Ewels, Måns Magnusson, Sverker Lundin and Max Käller
        Bioinformatics (2016)
        doi: 10.1093/bioinformatics/btw354
        PMID: 27312411

        A modular tool to aggregate results from bioinformatics analyses across many samples into a single report.

        Report generated on 2019-09-03, 16:26 based on data in: /projects/rcorbettprj2/CGEN/GIAB2/multiqc3


        General Statistics

        Showing 81/81 rows and 11/19 columns.
        Sample Name% GCIns. size≥ 30XCoverage% AlignedError rateM Non-PrimaryM Reads Mapped% Mapped% Proper PairsM Total seqs
        sBC_pBC_NA24143_round1
        41%
        363
        64.7%
        32.0X
        98.9%
        0.76%
        4.9
        777.4
        98.9%
        96.4%
        786.4
        sBC_pBC_NA24143_round2
        42%
        379
        79.6%
        36.0X
        98.7%
        1.03%
        5.3
        829.2
        98.7%
        96.4%
        840.3
        sBC_pBC_NA24143_round3
        41%
        382
        80.7%
        37.0X
        98.2%
        0.95%
        5.4
        872.9
        98.2%
        96.0%
        888.7
        sBC_pBC_NA24149_round1
        42%
        371
        69.8%
        34.0X
        98.7%
        0.82%
        5.1
        814.8
        98.7%
        96.5%
        825.5
        sBC_pBC_NA24149_round2
        42%
        385
        76.6%
        36.0X
        98.8%
        1.03%
        5.3
        832.1
        98.8%
        96.6%
        842.1
        sBC_pBC_NA24149_round3
        42%
        377
        80.3%
        38.0X
        99.3%
        0.85%
        5.7
        904.5
        99.3%
        97.2%
        910.5
        sBC_pBC_NA24385_round1
        41%
        365
        69.0%
        34.0X
        98.7%
        0.82%
        4.9
        786.8
        98.7%
        96.4%
        796.9
        sBC_pBC_NA24385_round2
        42%
        392
        68.5%
        34.0X
        98.9%
        1.01%
        4.9
        768.9
        98.9%
        96.6%
        777.8
        sBC_pBC_NA24385_round3
        41%
        390
        66.7%
        33.0X
        98.2%
        0.94%
        4.8
        789.1
        98.1%
        95.9%
        804.0
        sBC_pMTL_NA24143_round1
        41%
        363
        63.9%
        32.0X
        99.6%
        0.57%
        2.1
        780.2
        99.6%
        97.9%
        783.7
        sBC_pMTL_NA24143_round2
        42%
        379
        78.9%
        36.0X
        99.6%
        0.84%
        2.4
        832.3
        99.6%
        98.2%
        835.3
        sBC_pMTL_NA24143_round3
        41%
        383
        79.9%
        36.0X
        99.7%
        0.75%
        2.2
        875.6
        99.7%
        98.3%
        877.9
        sBC_pMTL_NA24149_round1
        41%
        372
        69.1%
        34.0X
        99.7%
        0.63%
        2.3
        816.1
        99.7%
        98.2%
        818.5
        sBC_pMTL_NA24149_round2
        42%
        385
        76.0%
        36.0X
        99.8%
        0.84%
        2.5
        833.5
        99.7%
        98.3%
        835.6
        sBC_pMTL_NA24149_round3
        42%
        378
        79.8%
        38.0X
        99.8%
        0.66%
        2.6
        906.2
        99.8%
        98.4%
        907.6
        sBC_pMTL_NA24385_round1
        41%
        365
        68.3%
        34.0X
        99.6%
        0.63%
        2.0
        787.6
        99.6%
        98.0%
        790.8
        sBC_pMTL_NA24385_round2
        42%
        392
        67.7%
        33.0X
        99.7%
        0.82%
        2.2
        769.9
        99.7%
        98.1%
        772.5
        sBC_pMTL_NA24385_round3
        41%
        390
        65.8%
        33.0X
        99.7%
        0.75%
        2.0
        789.7
        99.7%
        98.2%
        792.0
        sBC_pTOR_NA24143_round1
        41%
        363
        64.3%
        32.0X
        99.3%
        0.00%
        2.3
        780.6
        99.3%
        97.6%
        786.4
        sBC_pTOR_NA24143_round2
        42%
        379
        79.2%
        36.0X
        99.1%
        0.00%
        2.6
        832.8
        99.1%
        97.6%
        840.3
        sBC_pTOR_NA24143_round3
        41%
        383
        80.3%
        37.0X
        98.6%
        0.00%
        2.5
        876.4
        98.6%
        97.2%
        888.7
        sBC_pTOR_NA24149_round1
        41%
        372
        69.5%
        34.0X
        98.9%
        0.00%
        2.5
        816.5
        98.9%
        97.4%
        825.5
        sBC_pTOR_NA24149_round2
        42%
        385
        76.3%
        36.0X
        99.0%
        0.00%
        2.8
        833.9
        99.0%
        97.5%
        842.1
        sBC_pTOR_NA24149_round3
        42%
        378
        80.0%
        38.0X
        99.6%
        0.00%
        2.9
        906.5
        99.6%
        98.1%
        910.5
        sBC_pTOR_NA24385_round1
        41%
        365
        68.7%
        34.0X
        98.9%
        0.00%
        2.3
        788.1
        98.9%
        97.3%
        796.9
        sBC_pTOR_NA24385_round2
        42%
        392
        68.2%
        34.0X
        99.0%
        0.00%
        2.4
        770.3
        99.0%
        97.5%
        777.8
        sBC_pTOR_NA24385_round3
        41%
        390
        66.4%
        33.0X
        98.3%
        0.00%
        2.3
        790.5
        98.3%
        96.8%
        804.0
        sMTL_pBC_NA24143_round1
        42%
        336
        86.8%
        42.0X
        98.8%
        0.69%
        5.4
        909.1
        98.8%
        96.8%
        919.8
        sMTL_pBC_NA24143_round2
        42%
        294
        62.0%
        32.0X
        98.5%
        1.28%
        4.1
        686.8
        98.5%
        96.4%
        697.3
        sMTL_pBC_NA24143_round3
        42%
        289
        80.6%
        38.0X
        98.4%
        0.75%
        5.3
        818.7
        98.3%
        95.9%
        832.5
        sMTL_pBC_NA24149_round1
        42%
        294
        82.7%
        41.0X
        99.1%
        0.73%
        5.4
        887.2
        99.1%
        97.1%
        895.4
        sMTL_pBC_NA24149_round2
        42%
        283
        57.8%
        31.0X
        98.6%
        1.24%
        4.2
        674.7
        98.6%
        96.1%
        684.1
        sMTL_pBC_NA24149_round3
        42%
        282
        82.7%
        42.0X
        98.9%
        0.79%
        5.7
        896.8
        98.9%
        96.4%
        906.8
        sMTL_pBC_NA24385_round1
        42%
        292
        80.1%
        41.0X
        99.0%
        0.71%
        5.1
        875.1
        99.0%
        97.1%
        883.6
        sMTL_pBC_NA24385_round2
        42%
        300
        80.5%
        40.0X
        98.9%
        0.85%
        5.2
        864.7
        98.9%
        96.5%
        874.1
        sMTL_pBC_NA24385_round3
        42%
        307
        80.1%
        39.0X
        98.8%
        0.80%
        5.0
        845.4
        98.8%
        96.4%
        856.1
        sMTL_pMTL_NA24143_round1
        42%
        337
        86.5%
        43.0X
        99.8%
        0.53%
        2.4
        912.4
        99.8%
        98.4%
        914.4
        sMTL_pMTL_NA24143_round2
        42%
        294
        61.7%
        32.0X
        99.6%
        1.11%
        1.9
        688.9
        99.6%
        98.1%
        691.7
        sMTL_pMTL_NA24143_round3
        42%
        299
        77.8%
        37.0X
        99.7%
        0.64%
        2.0
        795.9
        99.7%
        98.2%
        798.4
        sMTL_pMTL_NA24149_round1
        42%
        294
        82.6%
        41.0X
        99.7%
        0.56%
        2.6
        888.4
        99.7%
        98.3%
        890.7
        sMTL_pMTL_NA24149_round2
        42%
        284
        57.6%
        31.0X
        99.6%
        1.05%
        2.2
        675.4
        99.6%
        98.0%
        678.1
        sMTL_pMTL_NA24149_round3
        42%
        282
        82.6%
        42.0X
        99.8%
        0.62%
        2.8
        897.9
        99.8%
        98.1%
        900.1
        sMTL_pMTL_NA24385_round1
        42%
        292
        79.9%
        41.0X
        99.7%
        0.54%
        2.2
        875.8
        99.7%
        98.3%
        878.2
        sMTL_pMTL_NA24385_round2
        42%
        301
        80.3%
        40.0X
        99.7%
        0.69%
        2.4
        865.4
        99.7%
        98.1%
        867.9
        sMTL_pMTL_NA24385_round3
        42%
        308
        79.9%
        39.0X
        99.6%
        0.63%
        2.1
        845.9
        99.6%
        97.9%
        849.0
        sMTL_pTOR_NA24143_round1
        42%
        337
        86.6%
        43.0X
        99.2%
        0.00%
        2.6
        912.6
        99.2%
        97.9%
        919.8
        sMTL_pTOR_NA24143_round2
        42%
        299
        78.1%
        37.0X
        98.6%
        0.00%
        2.2
        796.6
        98.6%
        97.2%
        807.5
        sMTL_pTOR_NA24143_round3
        42%
        289
        80.7%
        38.0X
        98.7%
        0.00%
        2.5
        821.3
        98.7%
        96.9%
        832.5
        sMTL_pTOR_NA24149_round1
        42%
        294
        82.6%
        42.0X
        99.2%
        0.00%
        2.8
        888.6
        99.2%
        97.9%
        895.4
        sMTL_pTOR_NA24149_round2
        42%
        284
        58.4%
        31.0X
        98.8%
        0.00%
        2.3
        675.9
        98.8%
        97.2%
        684.1
        sMTL_pTOR_NA24149_round3
        42%
        282
        82.7%
        42.0X
        99.1%
        0.00%
        3.0
        898.2
        99.0%
        97.4%
        906.8
        sMTL_pTOR_NA24385_round1
        42%
        292
        80.0%
        41.0X
        99.2%
        0.00%
        2.4
        876.2
        99.2%
        97.9%
        883.6
        sMTL_pTOR_NA24385_round2
        42%
        301
        80.4%
        40.0X
        99.1%
        0.00%
        2.5
        865.8
        99.0%
        97.5%
        874.1
        sMTL_pTOR_NA24385_round3
        42%
        308
        80.1%
        40.0X
        98.9%
        0.00%
        2.3
        846.4
        98.9%
        97.2%
        856.1
        sTOR_pBC_NA24143_round1
        41%
        407
        86.2%
        40.0X
        97.8%
        0.82%
        6.3
        926.7
        97.7%
        95.4%
        948.0
        sTOR_pBC_NA24143_round2
        41%
        389
        78.7%
        36.0X
        97.7%
        1.11%
        6.0
        875.6
        97.7%
        95.5%
        896.3
        sTOR_pBC_NA24143_round3
        41%
        382
        77.7%
        36.0X
        97.5%
        1.17%
        6.0
        857.8
        97.5%
        95.2%
        879.5
        sTOR_pBC_NA24149_round1
        42%
        388
        81.8%
        39.0X
        97.6%
        0.80%
        6.8
        963.5
        97.6%
        95.3%
        987.1
        sTOR_pBC_NA24149_round2
        41%
        380
        66.2%
        33.0X
        97.2%
        1.13%
        5.7
        828.6
        97.2%
        94.9%
        852.8
        sTOR_pBC_NA24149_round3
        41%
        373
        73.1%
        35.0X
        97.7%
        1.04%
        6.0
        856.4
        97.7%
        95.3%
        876.5
        sTOR_pBC_NA24385_round1
        42%
        374
        82.1%
        40.0X
        98.3%
        0.78%
        6.7
        946.6
        98.3%
        95.9%
        963.1
        sTOR_pBC_NA24385_round2
        42%
        381
        77.7%
        37.0X
        98.0%
        1.02%
        6.2
        909.1
        98.0%
        95.9%
        927.4
        sTOR_pBC_NA24385_round3
        41%
        377
        77.2%
        37.0X
        97.8%
        1.07%
        6.0
        898.7
        97.8%
        95.7%
        919.1
        sTOR_pMTL_NA24143_round1
        41%
        408
        86.0%
        40.0X
        99.9%
        0.64%
        3.0
        930.8
        99.9%
        98.3%
        931.7
        sTOR_pMTL_NA24143_round2
        41%
        389
        78.4%
        36.0X
        99.9%
        0.93%
        2.7
        879.4
        99.9%
        98.5%
        880.3
        sTOR_pMTL_NA24143_round3
        41%
        383
        77.5%
        36.0X
        99.9%
        0.98%
        2.7
        861.5
        99.9%
        98.4%
        862.7
        sTOR_pMTL_NA24149_round1
        42%
        388
        81.7%
        39.0X
        99.9%
        0.63%
        3.6
        965.5
        99.9%
        98.3%
        966.3
        sTOR_pMTL_NA24149_round2
        41%
        381
        66.0%
        33.0X
        99.9%
        0.94%
        2.8
        830.6
        99.9%
        98.5%
        831.2
        sTOR_pMTL_NA24149_round3
        41%
        374
        73.0%
        35.0X
        99.9%
        0.85%
        3.1
        858.3
        99.9%
        98.3%
        859.2
        sTOR_pMTL_NA24385_round1
        42%
        374
        82.0%
        40.0X
        99.9%
        0.61%
        3.2
        948.1
        99.9%
        98.4%
        949.0
        sTOR_pMTL_NA24385_round2
        42%
        382
        77.5%
        37.0X
        99.9%
        0.84%
        2.9
        910.7
        99.9%
        98.5%
        911.6
        sTOR_pMTL_NA24385_round3
        41%
        377
        76.9%
        37.0X
        99.9%
        0.88%
        2.7
        900.4
        99.9%
        98.6%
        901.2
        sTOR_pTOR_NA24143_round1
        41%
        408
        86.1%
        40.0X
        98.2%
        0.00%
        3.2
        930.9
        98.2%
        96.6%
        948.0
        sTOR_pTOR_NA24143_round2
        41%
        389
        78.9%
        36.0X
        98.1%
        0.00%
        3.0
        879.5
        98.1%
        96.7%
        896.3
        sTOR_pTOR_NA24143_round3
        41%
        383
        78.0%
        36.0X
        98.0%
        0.00%
        3.0
        861.5
        98.0%
        96.5%
        879.5
        sTOR_pTOR_NA24149_round1
        42%
        388
        81.8%
        39.0X
        97.8%
        0.00%
        3.8
        965.6
        97.8%
        96.3%
        987.1
        sTOR_pTOR_NA24149_round2
        41%
        381
        66.8%
        33.0X
        97.4%
        0.00%
        3.1
        830.6
        97.4%
        96.0%
        852.8
        sTOR_pTOR_NA24149_round3
        41%
        374
        73.5%
        35.0X
        97.9%
        0.00%
        3.4
        858.4
        97.9%
        96.3%
        876.5
        sTOR_pTOR_NA24385_round1
        42%
        374
        82.1%
        40.0X
        98.5%
        0.00%
        3.5
        948.2
        98.5%
        96.9%
        963.1
        sTOR_pTOR_NA24385_round2
        42%
        382
        77.9%
        37.0X
        98.2%
        0.00%
        3.1
        910.8
        98.2%
        96.8%
        927.4
        sTOR_pTOR_NA24385_round3
        41%
        377
        77.3%
        37.0X
        98.0%
        0.00%
        2.9
        900.4
        98.0%
        96.7%
        919.1

        QualiMap

        QualiMap is a platform-independent application to facilitate the quality control of alignment sequencing data and its derivatives like feature counts.

        Coverage histogram

        Distribution of the number of locations in the reference genome with a given depth of coverage.

        For a set of DNA or RNA reads mapped to a reference sequence, such as a genome or transcriptome, the depth of coverage at a given base position is the number of high-quality reads that map to the reference at that position (Sims et al. 2014).

        QualiMap groups the bases of a reference sequence by their depth of coverage (0×, 1×, …, N×), then plots the number of bases of the reference (y-axis) at each level of coverage depth (x-axis). This plot shows the frequency of coverage depths relative to the reference sequence for each read dataset, which provides an indirect measure of the level and variation of coverage depth in the corresponding sequenced sample.

        If reads are randomly distributed across the reference sequence, this plot should resemble a Poisson distribution (Lander & Waterman 1988), with a peak indicating approximate depth of coverage, and more uniform coverage depth being reflected in a narrower spread. The optimal level of coverage depth depends on the aims of the experiment, though it should at minimum be sufficiently high to adequately address the biological question; greater uniformity of coverage is generally desirable, because it increases breadth of coverage for a given depth of coverage, allowing equivalent results to be achieved at a lower sequencing depth (Sampson et al. 2011; Sims et al. 2014). However, it is difficult to achieve uniform coverage depth in practice, due to biases introduced during sample preparation (van Dijk et al. 2014), sequencing (Ross et al. 2013) and read mapping (Sims et al. 2014).

        This plot may include a small peak for regions of the reference sequence with zero depth of coverage. Such regions may be absent from the given sample (due to a deletion or structural rearrangement), present in the sample but not successfully sequenced (due to bias in sequencing or preparation), or sequenced but not successfully mapped to the reference (due to the choice of mapping algorithm, the presence of repeat sequences, or mismatches caused by variants or sequencing errors). Related factors cause most datasets to contain some unmapped reads (Sims et al. 2014).

        loading..

        Cumulative genome coverage

        Percentage of the reference genome with at least the given depth of coverage.

        For a set of DNA or RNA reads mapped to a reference sequence, such as a genome or transcriptome, the depth of coverage at a given base position is the number of high-quality reads that map to the reference at that position, while the breadth of coverage is the fraction of the reference sequence to which reads have been mapped with at least a given depth of coverage (Sims et al. 2014).

        Defining coverage breadth in terms of coverage depth is useful, because sequencing experiments typically require a specific minimum depth of coverage over the region of interest (Sims et al. 2014), so the extent of the reference sequence that is amenable to analysis is constrained to lie within regions that have sufficient depth. With inadequate sequencing breadth, it can be difficult to distinguish the absence of a biological feature (such as a gene) from a lack of data (Green 2007).

        For increasing coverage depths (1×, 2×, …, N×), QualiMap calculates coverage breadth as the percentage of the reference sequence that is covered by at least that number of reads, then plots coverage breadth (y-axis) against coverage depth (x-axis). This plot shows the relationship between sequencing depth and breadth for each read dataset, which can be used to gauge, for example, the likely effect of a minimum depth filter on the fraction of a genome available for analysis.

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        Insert size histogram

        Distribution of estimated insert sizes of mapped reads.

        To overcome limitations in the length of DNA or RNA sequencing reads, many sequencing instruments can produce two or more shorter reads from one longer fragment in which the relative position of reads is approximately known, such as paired-end or mate-pair reads (Mardis 2013). Such techniques can extend the reach of sequencing technology, allowing for more accurate placement of reads (Reinert et al. 2015) and better resolution of repeat regions (Reinert et al. 2015), as well as detection of structural variation (Alkan et al. 2011) and chimeric transcripts (Maher et al. 2009).

        All these methods assume that the approximate size of an insert is known. (Insert size can be defined as the length in bases of a sequenced DNA or RNA fragment, excluding technical sequences such as adapters, which are typically removed before alignment.) This plot allows for that assumption to be assessed. With the set of mapped fragments for a given sample, QualiMap groups the fragments by insert size, then plots the frequency of mapped fragments (y-axis) over a range of insert sizes (x-axis). In an ideal case, the distribution of fragment sizes for a sequencing library would culminate in a single peak indicating average insert size, with a narrow spread indicating highly consistent fragment lengths.

        QualiMap calculates insert sizes as follows: for each fragment in which every read mapped successfully to the same reference sequence, it extracts the insert size from the TLEN field of the leftmost read (see the Qualimap 2 documentation), where the TLEN (or 'observed Template LENgth') field contains 'the number of bases from the leftmost mapped base to the rightmost mapped base' (SAM format specification). Note that because it is defined in terms of alignment to a reference sequence, the value of the TLEN field may differ from the insert size due to factors such as alignment clipping, alignment errors, or structural variation or splicing in a gap between reads from the same fragment.

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        GC content distribution

        Each solid line represents the distribution of GC content of mapped reads for a given sample.

        GC bias is the difference between the guanine-cytosine content (GC-content) of a set of sequencing reads and the GC-content of the DNA or RNA in the original sample. It is a well-known issue with sequencing systems, and may be introduced by PCR amplification, among other factors (Benjamini & Speed 2012; Ross et al. 2013).

        QualiMap calculates the GC-content of individual mapped reads, then groups those reads by their GC-content (1%, 2%, …, 100%), and plots the frequency of mapped reads (y-axis) at each level of GC-content (x-axis). This plot shows the GC-content distribution of mapped reads for each read dataset, which should ideally resemble that of the original sample. It can be useful to display the GC-content distribution of an appropriate reference sequence for comparison, and QualiMap has an option to do this (see the Qualimap 2 documentation).

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        Picard

        Picard is a set of Java command line tools for manipulating high-throughput sequencing data.

        GC Coverage Bias

        This plot shows bias in coverage across regions of the genome with varying GC content. A perfect library would be a flat line at y = 1.

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        Samtools

        Samtools is a suite of programs for interacting with high-throughput sequencing data.

        Percent Mapped

        Alignment metrics from samtools stats; mapped vs. unmapped reads.

        For a set of samples that have come from the same multiplexed library, similar numbers of reads for each sample are expected. Large differences in numbers might indicate issues during the library preparation process. Whilst large differences in read numbers may be controlled for in downstream processings (e.g. read count normalisation), you may wish to consider whether the read depths achieved have fallen below recommended levels depending on the applications.

        Low alignment rates could indicate contamination of samples (e.g. adapter sequences), low sequencing quality or other artefacts. These can be further investigated in the sequence level QC (e.g. from FastQC).

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        Alignment metrics

        This module parses the output from samtools stats. All numbers in millions.

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