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Next-generation Sequencing03:00

Next-generation Sequencing

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Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
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Robust DNA Isolation and High-throughput Sequencing Library Construction for Herbarium Specimens
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Miniaturisation of high-throughput plasmid DNA library preparation for next-generation sequencing using

Lorna Suckling1, Ciaran McFarlane2, Chelsea Sawyer1

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Summary

This study optimizes high-throughput plasmid DNA library preparation for next-generation sequencing (NGS) using Design of Experiments (DOE). It also introduces quality control (QC) methods to remove genomic DNA (gDNA) for improved sequencing data.

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Area of Science:

  • Molecular Biology
  • Genomics
  • Biotechnology

Background:

  • High-throughput preparation of plasmid DNA libraries is crucial for next-generation sequencing (NGS) applications.
  • Quality control (QC) is essential for validating large-scale plasmid variant generation.
  • Genomic DNA (gDNA) contamination can hinder acoustic transfer processes.

Purpose of the Study:

  • To optimize miniaturized plasmid DNA library preparation for NGS.
  • To implement QC methods for gDNA detection and removal.
  • To ensure high-quality sequencing data from plasmid libraries.

Main Methods:

  • Design of Experiments (DOE) methodology for optimization.
  • Miniaturized library preparation using Illumina Nextera XT technology.
  • Labcyte Echo acoustic liquid dispensing system.
  • QC methods for gDNA identification and shearing.

Main Results:

  • Optimized protocol for miniaturized plasmid DNA library preparation.
  • Successful implementation of QC steps to remove gDNA.
  • Demonstrated high-quality sequencing data output.

Conclusions:

  • The described workflow enables efficient and high-quality plasmid DNA library preparation for NGS.
  • DOE and QC methods are valuable for molecular biology laboratories.
  • The protocol addresses challenges in acoustic transfer of plasmid DNA.