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A novel method of microsatellite genotyping-by-sequencing using individual combinatorial barcoding.

Salla Vartia1, José L Villanueva-Cañas2, John Finarelli3

  • 1Area 52 Research Group, University College Dublin, Belfield, Dublin, Republic of Ireland; Earth Institute, University College Dublin, Belfield, Dublin, Republic of Ireland; Carna Research Station, Ryan Institute, National University of Ireland, Galway, Carna, Connemara, Republic of Ireland.

Royal Society Open Science
|February 25, 2016
PubMed
Summary

Next-generation sequencing based genotyping-by-sequencing (GBS) offers a faster, cheaper method for population genetic studies. This approach efficiently recovers individual genotypes, providing more comprehensive data than traditional microsatellite analysis.

Keywords:
Gadus morhuaamplicon sequencinggenotyping by sequencingnext-generation sequencingssruniversal primer

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Area of Science:

  • Genetics
  • Molecular Biology
  • Bioinformatics

Background:

  • Microsatellite genotyping is crucial for population genetic studies.
  • Current methods can be time-consuming and expensive for large-scale projects.
  • Next-generation sequencing offers potential for more efficient genetic analysis.

Purpose of the Study:

  • To evaluate the efficacy of genotyping-by-sequencing (GBS) for microsatellite loci.
  • To determine if GBS is a rapid and cost-effective genotyping method for large populations.
  • To compare GBS performance against traditional capillary electrophoresis methods.

Main Methods:

  • Utilized PCR-incorporated combinatorial barcoding for individual genotype recovery from pooled sequences.
  • Tested GBS with existing and novel multiplex marker panels and amplicon mixtures.
  • Validated GBS results against microsatellite data obtained via capillary electrophoresis.

Main Results:

  • Successfully recovered individual genotypes using the GBS approach.
  • Demonstrated GBS's ability to reveal underlying nucleotide sequences and identify homoplasy.
  • GBS proved to be faster and more cost-effective than conventional microsatellite genotyping.

Conclusions:

  • Genotyping-by-sequencing is a viable, efficient, and cost-effective method for microsatellite genotyping in large-scale population genetics.
  • GBS provides richer data, including nucleotide sequences, facilitating cross-laboratory transfer and homoplasy detection.
  • This technique holds significant promise for advancing population genetic research.