Reference Genome Anchoring of High-Density Markers for Association Mapping and Genomic Prediction in European Winter Wheat

Olufunmilayo Ladejobi, Ian J. Mackay, Jesse Poland, Sebastien Praud, Julian M. Hibberd, Alison R. Bentley*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

In this study, we anchored genotyping-by-sequencing data to the International Wheat Genome Sequencing Consortium Reference Sequence v1.0 assembly to generate over 40,000 high quality single nucleotide polymorphism markers on a panel of 376 elite European winter wheat varieties released between 1946 and 2007. We compared association mapping and genomic prediction accuracy for a range of productivity traits with previous results based on lower density dominant DArT markers. The results demonstrate that the availability of RefSeq v1.0 supports higher precision trait mapping and provides the density of markers required to obtain accurate predictions of traits controlled by multiple small effect loci, including grain yield.

Original languageEnglish
Article number1278
JournalFrontiers in Plant Science
Volume10
Early online date8 Nov 2019
DOIs
Publication statusFirst published - 8 Nov 2019
Externally publishedYes

Keywords

  • genomic selection
  • mapping
  • next-generation sequencing
  • quantitative traits
  • trait dissection

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