Im new to bioinformatics, so i have just found Krona tool. I loved the graphs but i have not found a way to use qiime2 artifacts for this. Seems like there was a way to use biom files from qiime but with qiime2 nobody put much attention for this work. I have found an old topic about this but it died without a solution, so im bringing this up again if someone knows a way.
Also, something Krona-like could work for me, if you know a tool that would generate interactive graphs like Krona, please share with me.
This may be a really round about way to do it, but I used the OTU table that is generated, opened it in excel, sorted the OTUs by abundance, and just manually entered them ( I only needed top 20 per sample). A workflow would be really nice to have.
I have tried Calypso with different methods, so let me inform you about how far i could go.
First time, I tried Calypso with NCBI taxonomy file. It didn’t parse. Something like unassigned taxa was the result.
Then, I suspected if it was configured to work with some other database since i could get results with ncbi taxonomy file (like taxa bar plots were looking like what i expected) but Calypso didnt work. So i tried it with greengenes database and this time it seems like it worked but i have problems.
Problem one is it doesnt show level 7 (species). There are seven layers, seven levels but while parsing the data it added something before level 1 (kingdom) and species are lost.
Problem two is i had eleven samples. Krona doesnt show them seperately, i guess it got all of them summed up. Is there a way to make it work for each sample seperately?
Hello again,
Is it okay to use level-7.csv file in taxa bar plot to generate krona plots? I have managed transforming level-7.csv to a .tsv file that krona would like instead of using feature tables, but I’m not sure of the way since nobody mentioned it before.
Did I do good or something absurd? If my solution is acceptable, I can share the script to save others from trouble.
Well done. I'm glad you spent the time to get this working. Any advice you have to share with other is very helpful. You might even consider writing a tutorial about -> Krona!
Hi!
Just wondering if you could share how you got krona to work… really struggling with it and I also couldn’t find krona_qiime.py ! Its a shame because I really like the plots.
Thanks,
Annabelle
You just need to get .csv file from QIIME taxonomic bar plot file, and do very minimal editing (such as replacing the ";" with "."). If you're interested, I can PM you the details and an example of a plot I generated.
-> Krona!
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