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changing the representative genome #54

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ngarud opened this issue May 5, 2017 · 5 comments
Closed

changing the representative genome #54

ngarud opened this issue May 5, 2017 · 5 comments

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@ngarud
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ngarud commented May 5, 2017

Hi Stephen,

I want to change the representative genome used for calling SNPs for one of the species. I just wanted to confirm that the only two files that need to be updated using info from PATRIC are:

midas_db_v1.2/rep_genomes/Bacteroides_uniformis_57318/genome.features.gz
midas_db_v1.2/rep_genomes/Bacteroides_uniformis_57318/genome.fna.gz

Does midas_db_v1.2/genome_info.txt need to be updated too?

Thanks,
Nandita

@snayfach
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snayfach commented May 5, 2017 via email

@ngarud
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ngarud commented May 5, 2017 via email

@ngarud
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ngarud commented May 5, 2017

One more question -- suppose I run the SNP calling module in MIDAS with the --species_id flag. Do the number of reads that map to the desired species change in contrast to when MIDAS is run with all species (i.e. --species_id flag is not used)?

Thanks,
Nandita

@snayfach
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snayfach commented May 5, 2017

Probably a bit depending on how related the species are in the community. I wouldn't worry too much about it.

I did this this a while back. Specifically, I compared consensus trees built by MIDAS using --species_topn 1 to --species_topn 20 for one species. The phylogenetic placements were nearly identical.

@snayfach
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snayfach commented May 6, 2017

I'm closing this, but reopen if you run into any error in the code

@snayfach snayfach closed this as completed May 6, 2017
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