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Single-Cell Trajectory Analysis Using Monocle3 and Seurat - Step-by-Step Tutorial

Bioinformagician via YouTube

Overview

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and DotPlot This course will equip you with the skills to perform trajectory analysis and pseudo-time, a powerful tool in single-cell data analysis. The course will start with an introduction to trajectory analysis and give an overview of different methods for performing the analysis. Students will then be taught the specific workflow steps to analyse single-cell data, ranging from fetching the data, creating a Seuret object, normalising the data and running PCA, UMAP and cluster algorithms. Another important step is to learn the trajectory graph and order cells in pseudo-time. The course will also teach plotting pseudotime for cell types and investigating genes that change expression along a trajectory. Finally, the course will cover visualising pseudotime by using Seurat's FeaturePlot and DotPlot.

Syllabus

Intro
WHAT is Trajectory analysis?
What is pseudotime?
WHEN to perform trajectory analysis?
WHICH trajectory inference method to choose?
HOW to perform trajectory analysis? - Workflow steps
cell_data_set class
Data for demo
Fetching the data
Load libraries and read data in R
Create Seurat object
Subset Seurat object to only retain B cells
Processing steps in Seurat NormalizeData, ScaleData, RunPCA, RunUMAP and FindClusters
Convert Seurat object to object of cell_data_set class
Retrieving data from cds object
Transfer clustering information from Seurat object to cds object
Visualize clustering using monocle3: plot_cells
Learn trajectory graph: learn_graph
Order cells in pseudotime: order_cells
Plotting pseudotime for cell types in ggplot2
Find genes that change expression along a trajectory: graph_test
Visualizing pseudotime in Seurat's FeaturePlot

Taught by

bioinformagician

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