Hi,
How to convert 10X data to do psedotime analysis using Monocle. All the tutorials in Monocle point to cellranger kit which has been deprecated. I followed - https://support.10xgenomics.com/single-cell-gene-expression/software/pipelines/latest/output/matrices and https://kb.10xgenomics.com/hc/en-us/articles/360023793031-How-can-I-convert-the-feature-barcode-matrix-from-Cell-Ranger-3-x-to-a-CSV-file-?source=search to get to a matrix. Bu I am not sure if this is the right way?
Also there is an option to convert data from Seurat object to Monocle newCellDataSet object?
Anyone done this before?
Thanks, Payal
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Payal
1 answer
Where did you see that cellranger is deprecated? It is still very much in use. Monocle3 supports the standard cellranger output, you don't have to mess with it at all.
Oh, I never even knew they had an R suite. Just use the command line version, it supports aggregation now too.
Yes I used normal cellranger aggr to aggregate samples but they used to have this cellranger R kit to easily transform data into an R matrix type object, which they no longer support. So I am having this confusion because now they output everything as barcodes.tsv.gz, features.tsv.gz and matrix.mtx.gz. And then the data needs to be transformed. So I followed the above links as directed by 10X customer support.
Please read the link in my answer - all you have to do is point Monocle to the folder with those file in it. It should have no trouble importing the information.
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Here is a tutorial for how to convert 10x data to Monocle pseudotime: https://colab.research.google.com/github/pachterlab/kallistobustools/blob/master/notebooks/kb_monocle.ipynb
The tutorial goes from reads to results, and is on Google Colab so you can run it in a browser.