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Run RRHO on RNA seq data using brainSpan RNAseq

A script to compare in-vitro RNAseq data from cell culture to in-vivo RNAseq data from brainSpan modified from Stein, de la Torre-Ubieta et al. (2014).

The biggest difference between the published method in Stein, de la Torre-Ubieta et al. (2014) and this method is the choice of statistic to use for comparison. While the published mehtod above ranked genes by p-values this method uses logFC as it is more stable across different methods (e.g. DEseq2, edgeR, limma-voom)

The brainSpan data here only includes the cortical areas and was analyzed using limma-voom.

Input

A folder containing CSVs of all the comparisons you are interested in in your data. Each file must contain a column with ensembl gene IDs titled "geneID" and a column with the calculated log fold changes titled "logFC". The genes within each file don't have to be ordered by logFC.

Output

A map of the overlap between any two systems across development. An example of the map generated: alt text

Script

To run:

Rscript runRRHO.R path/to/csvs path/to/output

Citation

If you use this analysis in a publication please cite the following paper:

Stein JL, de la Torre-Ubieta L, Tian Y, Parikshak NN, Hernandez IA, Marchetto MC, Baker DK, Lu D, Hinman CR, Lowe JK, Wexler EM, Muotri AR, Gage FH, Kosik KS, Geschwind DH (2014) A quantitative framework to evaluate modeling of cortical development by neural stem cells. Neuron 83:69-86.