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

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.

journal_name

BMC Genomics

journal_title

BMC genomics

authors

Watson-Haigh NS,Suchecki R,Kalashyan E,Garcia M,Baumann U

doi

10.1186/s12864-018-5228-2

subject

Has Abstract

pub_date

2018-12-17 00:00:00

pages

941

issue

1

issn

1471-2164

pii

10.1186/s12864-018-5228-2

journal_volume

19

pub_type

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