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BWA mem trouble: paired reads have different names

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  • BWA mem trouble: paired reads have different names

    Hi all... recently I've received my raw data for Exome Sequencing .. .how ever when I try to use BWA mem appear this error:

    [mem_sam_pe] paired reads have different names: "MG00HS15:414:C59DDACXX:1:1109:1869:1993", "MG00HS15:414:C59DDACXX:1:1109:2293:1994"

    If anyone had this issue in the past and know how to solve ... please let me know.

    Thanks.
    Camilo

  • #2
    Additional I'am running this samples in Illumina ... using the sure select capture kit.
    I've use this method before but now ... crash

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    • #3
      It would help if you posted your command line and explained your pipeline. Generally, problems like this are caused by using upstream processing tools incorrectly such that pairing information is corrupted. The solution is to redo the upstream processing, starting with the raw reads, with pair-aware tools.

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      • #4
        Hi thanks for your reply. I'm performing the first step aligning the fastq files to the hg19... My code is the next

        /.bwa men -M -p hg19.fasta file1.fastq file2.fastq > file.sam

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        • #5
          Where did you get the fastq files? It's likely that they're out of sync.

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          • #6
            Macrogen ....

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            • #7
              And you didn't do anything to the files after downloading them? Then they likely f'd them up. You can follow instructions here or here to resync the files. This is assuming that they're paired-end and that they didn't just upload the dataset in multiple files, of course.

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              • #8
                Brian has a simple way to fix this problem in BBTools: http://seqanswers.com/forums/showpos...0&postcount=45

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                • #9
                  Hi ... thanks again for your reply ... I didnt do nothing only download the data and un-gunzip it... I will read the posts that you recommend ...thanks again!

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                  • #10
                    Originally posted by GenoMax View Post
                    Brian has a simple way to fix this problem in BBTools: http://seqanswers.com/forums/showpos...0&postcount=45
                    That's certainly more convenient than some obscenely long awk command!

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                    • #11
                      seems easy a lot!

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                      • #12
                        ajajaj well I have small issue runing bbmap ...

                        this is my input:
                        ./repair.sh -Xmx8g in1=/Users/monicagiraldo/NGS/RawData/ISBA/H-ISBA_1.fastq in2=/Users/monicagiraldo/NGS/RawData/ISBA/H-ISBA_2.fastq out1=/Users/monicagiraldo/NGS/RawData/ISBA/Fixed/ISBA1fixed.fastq out2=/Users/monicagiraldo/NGS/RawData/ISBA/Fixed/ISBA2fixed.fastq outsingle=ISBAfixedsingle.fastq

                        but appear that this folder is missing or can't be charged:
                        Software.bbmap.current


                        thanks again .. sorry for botther

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                        • #13
                          Solved!!!!

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                          • #14
                            looking in the bwa documentation seems to be a problem when I use the -p option ... after run bbtools for paired data and remove the -p bwa runs properly

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                            • #15
                              Oh, I see the problem. Yes, the -p, I guess, made it try to use the first input file as if it was interleaved, which it wasn't. Looks like -p has different meaning for indexing and mapping, which is a little confusing.

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