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High-Throughput Single-Cell Sequencing with Linear Amplification.

Yi Yin1, Yue Jiang2, Kwan-Wood Gabriel Lam3

  • 1Department of Genome Sciences, University of Washington, Seattle, WA, USA.

Molecular Cell
|September 10, 2019
PubMed
Summary
This summary is machine-generated.

We developed sci-L3, a novel single-cell sequencing method that enhances throughput and uniformity. This method profiles thousands of genomes, revealing detailed recombination and chromosome segregation events in meiosis.

Keywords:
DNA repairchromosome segregationdouble-strand breakhomologous recombinationinfertilitylinear amplificationmeiotic crossovermousesingle-cell combinatorial indexingsingle-cell sequencing

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Area of Science:

  • Genomics
  • Molecular Biology
  • Biotechnology

Background:

  • Conventional single-cell genome sequencing methods face limitations in uniformity and throughput.
  • There is a need for advanced techniques to analyze individual cell genomes at scale.

Purpose of the Study:

  • To introduce sci-L3, a novel single-cell sequencing method combining combinatorial indexing and linear amplification.
  • To demonstrate the versatility of sci-L3 for whole-genome sequencing, targeted sequencing, and multi-omics assays.
  • To apply sci-L3 to analyze large-scale single-cell genomic data from mouse meiosis.

Main Methods:

  • Development of sci-L3, a single-cell sequencing technology utilizing a 3-level indexing strategy.
  • Application of sci-L3 for whole-genome sequencing (sci-L3-WGS), targeted sequencing (sci-L3-target-seq), and genome-transcriptome co-assay (sci-L3-RNA/DNA).
  • Profiling of over 10,000 sperm and sperm precursor genomes using sci-L3-WGS.

Main Results:

  • The sci-L3 method significantly minimizes amplification biases and achieves exponential gains in throughput.
  • sci-L3-WGS successfully mapped 86,786 crossovers in mouse sperm and precursors.
  • Characterization of rare meiotic chromosome mis-segregation events, including whole-genome equational chromosome segregation, was achieved.

Conclusions:

  • sci-L3 offers a high-throughput, high-uniformity solution for single-cell genome sequencing.
  • The method enables detailed analysis of recombination landscapes and meiotic events at an unprecedented scale.
  • Future applications include coupling CRISPR perturbations with genome stability measurements and other high-demand single-cell genomic analyses.