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Related Concept Videos

Next-generation Sequencing03:00

Next-generation Sequencing

The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features.

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Reduced-Cost Genotyping by Resequencing in Peanut Breeding Programs Using Tecan Allegro Targeted Resequencing V2.

Cheng-Jung Sung1, Roshan Kulkarni2, Andrew Hillhouse3

  • 1Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79409, USA.

Genes
|November 27, 2024
PubMed
Summary

Developing a cost-effective targeted resequencing genotyping system using the Tecan Allegro kit significantly reduces costs for plant breeding programs. This method provides accurate single nucleotide polymorphism (SNP) markers for routine genetic analysis in large populations.

Keywords:
SNPgenomegenotypingresequencingtarget

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Area of Science:

  • Genomics
  • Molecular Biology
  • Plant Breeding

Background:

  • High-throughput genotyping methods are often too expensive for routine use in plant breeding programs requiring frequent analysis of large populations.
  • Existing methods generate more single nucleotide polymorphism (SNP) markers than typically needed for breeding applications.
  • There is a need for cost-effective genotyping solutions to facilitate the routine use of molecular markers in breeding.

Purpose of the Study:

  • To develop a cost-effective genotyping system for plant breeding programs.
  • To utilize the Tecan Allegro Targeted Resequencing V2 kit for customized SNP marker selection and genotyping.
  • To assess the feasibility of targeted resequencing for routine molecular marker analysis.

Main Methods:

  • Pre-filtered and selected SNPs from previous peanut next-generation sequencing data were used as targets.
  • Customized probes were designed using the Tecan Allegro Targeted Resequencing V2 kit to detect 2770 SNP targets.
  • The system was tested on 48 accessions, including closely related sister lines from a breeding population.

Main Results:

  • The targeted resequencing approach reduced genotyping costs from approximately USD 28 (SNP chip and GBS) to USD 18 per sample.
  • The system successfully identified polymorphic markers with accurate SNP calls.
  • 5154 probes were designed to detect 2770 SNP targets.

Conclusions:

  • The developed targeted resequencing platform offers a cost-effective solution for plant breeding programs.
  • This method enables the effective and routine use of pre-selected SNP markers for genetic analysis.
  • The system facilitates the application of molecular markers in large-scale breeding efforts.