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  • sptmbr
    Junior Member
    • Aug 2011
    • 1

    #1

    Map transcripts from de novo assemblier such as trinity back to the genome ?

    Hi, could anyone recommend any software or algorithm to map the transcripts generated from de novo assembly algorithm such as trinity back to the reference genome? Thanks in advance!
  • boetsie
    Senior Member
    • Feb 2010
    • 245

    #2
    I would suggest nucmer in the MUMmer package:



    Very simple and fast.

    Comment

    • kmcarr
      Senior Member
      • May 2008
      • 1181

      #3
      BLAT
      GMAP
      Exonerate

      Comment

      • jmartin127
        Member
        • Mar 2010
        • 15

        #4
        Originally posted by sptmbr View Post
        Hi, could anyone recommend any software or algorithm to map the transcripts generated from de novo assembly algorithm such as trinity back to the reference genome? Thanks in advance!
        We usually use Blat for this type of thing. It does a fairly good job.

        Comment

        • malachig
          Senior Member
          • Aug 2010
          • 117

          #5
          kmcarr makes some good suggestions.

          More options:

          Splign
          Spidey

          If you look at a Refseq record in Genbank, you will notice that 'splign' is the algorithm used by NCBI to determine the exon-intron structure of transcript sequences.

          Comment

          • swaraj
            Member
            • Feb 2012
            • 50

            #6
            blastn -query query.fa -db db -out query.backmapped -num_threads 4 -culling_limit 1 (for same species)

            blastn -query query.fa -db db -out query.backmapped -num_threads 4 -culling_limit 1 -task blastn(for different species)

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