Can I use metatranscriptomic reads for coverage when doing metagenomic binning?
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18 months ago
O.rka ▴ 540

I have a lot metatranscriptomic reads and a single metagenomics assembly. A lot of binning programs require coverage vectors but since I don’t have the original metagenomic reads anymore, was wondering if I could use the metatranscriptomic reads instead?

metagenomics metatranscriptomics binning • 536 views
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Entering edit mode
18 months ago
Mensur Dlakic ★ 18k

It would make no sense to do that because you are talking about two different datasets. The whole point of binning using coverage is to add yet another data column to the clustering procedure. That piece of information would be useless here because there is no way of knowing whether the two datasets are related in terms of coverage.

There should be no problem in binning without coverage, as tetranucleotide frequencies contain plenty of information. If you use software that absolutely requires coverage, you can make it up by giving all contigs an equal coverage value (1x, 100x, the exact number doesn't really matter). When all coverages are identical (which is actually true in the absence of that information), that data column will not contribute to the final binning result.

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