Alex Alonso
06/11/2026, 6:35 AMDaniel Straub
06/11/2026, 7:17 AMIt seems this (or similar) questions have been posted before, but no conclusion was reached, any idea on how we could proceed?I am unsure what you are referring to.
or is this pipeline incompatible with this kind of samples?from the description you posted here the data should be fine to the pipeline (I didnt check the links).
although some of these have degenerate primers (in which case I only used the pair that has the most matches in SILVA)That might be a problem, primers should be given to the pipline as they were used for the PCR.
too few reads after trimmingIf after primer removal (cutadapt) too less reads, the primers were not appropriate or the data is lacking. If after DADA2's filterntrim are too less reads, and its a read quality issue consider increasing https://nf-co.re/ampliseq/2.17.0/parameters/#max_ee or such, or maybe the region_length is too small.
Alex Alonso
06/12/2026, 5:53 AM