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  • fahmida
    Member
    • Aug 2010
    • 54

    #1

    finding hangovers in contig/scaffold alignments

    Hi,

    We have a nearly completed eukaryotic genome assembled into several thousand scaffolds (total lenghth is~350MB). There are ~8000 gaps (NNNs) in those scaffolds. Recently we received de-novo assembled contigs from a different strain of the same species. When compared (blast/blat etc.), What program/script would be most suitable:
    1) To find all the contigs overlapping with the gap region of the scaffolds i.e. the overhangs as shown below:

    scaff1: ACGTACGTCCCGCCCGCGCNNNNNNNNNNNNNNN
    contig: ACGTACGTCCCGCCCGCGCTACGCCGCGT

    2) For a good quality overlap (e.g. 50bp overlap with 2 matches) extend the scaffold with the sequence from the matched contig.

    Thanks.
  • GenoMax
    Senior Member
    • Feb 2008
    • 7142

    #2
    Give Mauve (http://gel.ahabs.wisc.edu/mauve/) a try.

    CoGe (http://genomevolution.org/CoGe/) and GEvo (http://genomevolution.org/wiki/index.php/GEvo) may be other possibilities.
    Last edited by GenoMax; 03-07-2013, 05:33 AM.

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