Wheat genome coordinate converter

Convert genomic coordinates from IWGSC CS RefSeq v2.1 to equivalent positions across 24 hexaploid wheat assemblies. Powered by gene anchor interpolation. Runs entirely in your browser; no data leaves your machine.

24 assemblies ~95k gene anchors CS RefSeq v2.1 reference Multi-target BED support
Convert coordinates
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Chromosome
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Start
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End
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Anchor density
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AssemblyChrStartEndConfidenceCopy
Batch convert
Select one or more
Drop a BED or TXT file here
Columns: chr start end or chr position (tab or space separated)
Extra columns are preserved in the output

# Region query (chr, start, end)
Chr1A  250000000  260000000  my_qtl
Chr3B  400000000  420000000  my_region
# Single position (chr, position)
Chr5B  157000000  my_marker
# Extra columns are preserved in output
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Results
About

WheatCoordDB converts coordinates from IWGSC CS RefSeq v2.1 to 24 hexaploid wheat assemblies using gene anchor interpolation. Runs entirely in your browser.

Built by the Grewal lab, University of Nottingham. See the Guide for full documentation, confidence thresholds, validation results and assembly details.

Want your favourite wheat assembly added? Get in touch.

Cite
If you use WheatCoordDB in your research, please cite:

Grewal et al. (in preparation). WheatCoordDB: a gene-anchored coordinate conversion resource for hexaploid wheat assemblies.
Coming soon
  • ⇄
    Reverse lookup
    Convert target assembly coordinates back to CS v2.1
  • 🌾
    T2T-based references
    All assemblies referenced to CS-IAAS and CS-CAU T2T assemblies
  • 🇨🇳
    Chinese cultivar panel
    17 Chinese wheat cultivars from Jiao et al. (2025, Nature) spanning Chinese breeding history