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The Sequencing-Based Mapping Method for Effectively Cloning Plant Mutated Genes.

Li Yu1, Yanshen Nie1, Jinxia Jiao1

  • 1State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan 430072, China.

International Journal of Molecular Sciences
|July 2, 2021
PubMed
Summary
This summary is machine-generated.

We developed a sequencing-based mapping (SBM) method to efficiently locate plant gene variants. This user-friendly approach uses whole-genome sequencing data for cost-effective and rapid identification of mutations.

Keywords:
heterozygotemap-based cloningricewhole-genome sequencing

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Area of Science:

  • Plant genetics
  • Molecular biology
  • Genomics

Background:

  • Forward genetics is crucial for identifying genes linked to specific phenotypes.
  • Conventional map-based cloning is time-consuming and requires large populations.
  • Whole-genome sequencing has limitations, especially for heterozygotes and epigenetic mutations.

Purpose of the Study:

  • To develop a cost-effective and user-friendly sequencing-based mapping (SBM) method.
  • To efficiently identify the location of plant variants using a small population.
  • To overcome limitations of existing gene cloning techniques.

Main Methods:

  • Utilized whole-genome sequencing data from two pooled populations to identify markers.
  • Analyzed marker-indexes and recombinants to narrow down candidate regions.
  • Verified potential mutational sites using whole-genome sequencing data in individual mutants.

Main Results:

  • Successfully cloned variants in one *Arabidopsis* heterozygous mutant and two rice homozygous mutants.
  • Demonstrated the effectiveness of SBM in identifying different types of plant mutations.
  • Showcased the method's applicability in species with known genomic sequences.

Conclusions:

  • The sequencing-based mapping method (SBM) is a powerful and efficient tool for plant variant identification.
  • SBM offers a low-cost, user-friendly alternative for gene cloning in most laboratories.
  • This method facilitates the study of plant gene functions, particularly in species with established genome sequences.