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  • Geneious
    replied
    Hi Tore,

    You could try annotating your reference sequence with coverage annotations for each sample then compare the annotations to find overlapping regions.

    You could also try de novo assembling your contigs from every sample together, probably with the "Don't merge contigs when there is a variant with coverage over ..." setting turned off. Doing that will also mix paralogs in with the orthologs you're after but it might be helpful.

    Also try checking out the support pages for Geneious for more advice on using Geneious.


    Kind regards,
    Helen Shearman
    Geneious Support Analyst
    Geneious Prime is the world’s leading bioinformatics software for molecular biology and sequence analysis. Geneious Biologics streamlines antibody discovery and screening with intuitive cloud-based software
    Last edited by Geneious; 01-31-2013, 08:28 PM. Reason: Typo

    Leave a comment:


  • toreoe
    started a topic Geneious for transcriptome alignment

    Geneious for transcriptome alignment

    Hi there,

    I am new to NGS data and bioinformatics. But SEQanswers seems like a good place to start. Here is my problem for you :-)

    Computer resources: Geneious R6, access to cluster with various bioinf programs
    Data: 454 GS FLX transcriptome reads from 12 individuals, two species
    Goal: Find overlapping sequences from orthologous genes within and between species

    I have 454 transcriptome reads from two species (6 individuals from each -->12). We want to do a comparative transcriptome project, studying intra- and interspecific variation and divergence patterns, selection signs, etc. So, what we want is to strip the dataset down so that it contains overlapping sequences from orthologous genes, preferentially utilizing all individuals.

    I am no wizard in bioinformatics. I am at a level where peeking at the post-it notes filling my wall containing basic UNIX commands (ls -l, chmod, less, etc.) is still very much useful. But with good help I've been able so far to assemble the 454 reads for all 12 individuals using Newbler 2.6. What I hope now is that our newly purchased Geneious Pro (R6) can help in order to 1) align the individual transcriptome contigs to each other 2) strip down dataset to overlapping sequences, if there exists any (apparently the coverage is variable).

    Preferentially, I hope the Geneious users out there can help instruct me on how to go forward with this. But any suggestion will be much appreciated, also advise for alternatives to Geneious.

    One thing I have tried is to concatenate the largest individual assembly and using the map to reference option in Geneious to align another individual assembly to it. Any comments on this approach?

    Best wishes,
    Tore
    Last edited by toreoe; 01-31-2013, 05:39 AM.

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