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This article in TPG

  1. Vol. 5 No. 3, p. 92-102
    unlockOPEN ACCESS
     
    Received: May 29, 2012
    Published: December 12, 2012


    * Corresponding author(s): jesse.poland@ars.usda.gov
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doi:10.3835/plantgenome2012.05.0005

Genotyping-by-Sequencing for Plant Breeding and Genetics

  1. Jesse A. Poland a and
  2. Trevor W. Rifeb
  1. a USDA-ARS, Hard Winter Wheat Genetics Research Unit and Dep. of Agronomy, Kansas State Univ., 4008 Throckmorton Hall, Manhattan KS, 66506
    b Interdepartmental Genetics, Kansas State Univ., 4024 Throckmorton Hall, Manhattan KS, 66506

Abstract

Rapid advances in “next-generation” DNA sequencing technology have brought the US$1000 human (Homo sapiens) genome within reach while providing the raw sequencing output for researchers to revolutionize the way populations are genotyped. To capitalize on these advancements, genotyping-by-sequencing (GBS) has been developed as a rapid and robust approach for reduced-representation sequencing of multiplexed samples that combines genome-wide molecular marker discovery and genotyping. The flexibility and low cost of GBS makes this an excellent tool for many applications and research questions in plant genetics and breeding. Here we address some of the new research opportunities that are becoming more feasible with GBS. Furthermore, we highlight areas in which GBS will become more powerful with the continued increase of sequencing output, development of reference genomes, and improvement of bioinformatics. The ultimate goal of plant biology scientists is to connect phenotype to genotype. In plant breeding, the genotype can then be used to predict phenotypes and select improved cultivars. Furthering our understanding of the connection between heritable genetic factors and the resulting phenotypes will enable genomics-assisted breeding to exist on the scale needed to increase global food supplies in the face of decreasing arable land and climate change.

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