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Comprehensive Spatial Profiling of Species-agnostic Transcriptomes via Stereo-seq

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Efficient in situ barcode sequencing using padlock probe-based BaristaSeq.

Xiaoyin Chen¹, Yu-Chi Sun¹, George M Church^2,3

¹Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.

Nucleic Acids Research

|December 1, 2017

Summary

This summary is machine-generated.

BaristaSeq enhances in situ sequencing for cellular barcodes, improving amplification efficiency and accuracy. This method enables high-throughput, spatially resolved cell lineage tracing and neuronal mapping.

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Area of Science:

Molecular Biology
Genomics
Neuroscience

Background:

Cellular DNA/RNA barcodes enable multiplexed cell lineage tracing and neuronal projection mapping.
Current methods for reading barcodes sacrifice either spatial resolution (bulk sequencing) or throughput (manual cell picking).
Existing in situ sequencing techniques struggle with efficient barcode readout.

Purpose of the Study:

To develop an optimized in situ sequencing technique for efficient and accurate cellular barcode readout.
To improve upon existing in situ sequencing methods for applications in cell biology and neuroscience.

Main Methods:

BaristaSeq, an optimized targeted, padlock probe-based technique for in situ barcode sequencing.
Compatibility with Illumina sequencing chemistry.

Main Results:

BaristaSeq achieved a five-fold increase in amplification efficiency.
Sequencing accuracy was at least 97% for cellular barcodes.
Demonstrated potential for barcode-assisted lineage tracing and neuronal projection mapping.

Conclusions:

BaristaSeq offers a high-throughput and high-spatial-resolution solution for in situ barcode sequencing.
This technique advances cell lineage tracing and neuronal mapping capabilities.
BaristaSeq is compatible with established sequencing platforms like Illumina.