DAWN: A resource for yielding insights into the diversity among wheat genomes

Nathan S. Watson-Haigh, Radosław Suchecki, Elena Kalashyan, Melissa Garcia, Ute Baumann

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Background: Democratising the growing body of whole genome sequencing data available for Triticum aestivum (bread wheat) has been impeded by the lack of a genome reference and the large computational requirements for analysing these data sets. Results: DAWN (Diversity Among Wheat geNomes) integrates data from the T. aestivum Chinese Spring (CS) IWGSC RefSeq v1.0 genome with public WGS and exome data from 17 and 62 accessions respectively, enabling researchers and breeders alike to investigate genotypic differences between wheat accessions at the level of whole chromosomes down to individual genes. Conclusions: Using DAWN we show that it is possible to visualise small and large chromosomal deletions, identify haplotypes at a glance and spot the consequences of selective breeding. DAWN allows us to detect the break points of alien introgression segments brought into an accession when transferring desired genes. Furthermore, we can find possible explanations for reduced recombination in parts of a chromosome, we can predict regions with linkage drag, and also look at diversity in centromeric regions.

Original languageEnglish
Article number941
JournalBMC Genomics
Volume19
Issue number1
DOIs
Publication statusPublished or Issued - 17 Dec 2018
Externally publishedYes

Keywords

  • Diversity
  • Genome
  • Variants
  • Visualisation
  • Wheat

ASJC Scopus subject areas

  • Biotechnology
  • Genetics

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