Hi there:
When we finished dada2 denoise, we would get a ASV table. I am very confused about my results, because there is zero ASV shared in more than two samples, all ASV just appear in only one sample, which i really can't understand.
Script of what i run:
qiime tools import --type 'SampleData[SequencesWithQuality]'
--input-format SingleEndFastqManifestPhred33V2
--input-path manifest.tsv
--output-path data_se.qza
qiime dada2 denoise-single --i-demultiplexed-seqs data_se.qza
--o-table ASV_table-dada2.qza
--p-trunc-len 0
--o-representative-sequences rep-seqs-dada2.qza
--o-denoising-stats stats-dada2.qza
--p-n-threads 20
--p-trunc-q 0
--p-max-ee 2
qiime metadata tabulate --m-input-file ASV_table-dada2.qza
--o-visualization ASV_table-dada2.qzv
Some files may help:
ASV_table-dada2.qzv (1.2 MB)
manifest.tsv (1.2 KB)
Here is a sub fastq of one sample A1:
A1_sub.fastq (951.8 KB)
Thanks for your help
wanjin.hu