Salmon Quant paired-end read entry

Welcome @Mark_C

Hopefully we can help!

The idea is to always but pairs of reads together inside of a collection.

Collections are like smart folders. The organization is by sample, and the collection can contain one or many samples (single end or pairs of reads). The outputs will keep retain the per sample organization. This helps to avoid sample or end mixups. All the read datasets will be in the hidden tab where you can toggle to active use them individually for exploratory work.

There are two primary ways to get the data into a collection. You’ll be using the first but next time you can load the data this way and run through the upstream steps inside the collection. It makes processing 1000s of samples just like processing one.

History → Auto Build List

The video here shows how. → Why collections?

Upload → Collection

This allows you to process one or many samples through all of your steps together: QA, trimming, analysis, summary reports. This avoids sample mixups and much less clicking around.

Opt out

If you really don’t want to use a collection for some reason, all of the older original versions of tool forms are still available!

For your case, you’ll just need to go back one version to:

  • Salmon quant Perform dual-phase, reads or mapping-based estimation of transcript abundance from RNA-seq reads (Galaxy Version 1.10.1+galaxy2)


Below is another example for SPAdes. All tool forms have versions listed. Once a tool form is published, each version is immutable for reproducibility reasons. The parameters available will always be what was originally included!

If you check the versions of tools hosted at the different servers, you will likely notice that the US server and EU server are a bit different. The US server is pending an update and is hosting the 1.10.1+galaxy2 version right now but will soon update to the version hosted at the EU server. But the older versions will still be available at both.

Tool panel → Collection Operations

The collection folders may be manipulated in both simple and sophisticated ways!


That’s a lot of information but I see that others are asking about the same topic, so I wanted to bring everything together again in a summary. Thank’s for letting me answer with a bit more exposition! And please ask if anything is not clear – you are welcome to share back screenshots to help explain.

Let’s start there, thanks!