Based on large-scale root transcriptome analysis, our group obtained genotypic data from 406 globally diverse wheat germplasms, combined with phenotypic data (including quality and root traits) of 25 traits across 12 environments, and integrated meteorological data to build the freely downloadable wheat multi-omics database.
This database contains 406 wheat germplasm resources with rich genetic diversity, including 87 landraces (LA), 259 modern cultivars (MC), and 60 advanced breeding lines (BL). Among the 259 modern cultivars, 128 materials are from the Yellow and Huai wheat zone (Y&H), 29 materials are from the Yangtze River wheat zone (YTS), 50 materials are from other wheat zones in China (OTW), and 52 materials are introduced abroad modern cultivars (IC).
| File Description | File Name | File Size | Download |
|---|---|---|---|
| Accession passport data (origin, ecotype, etc.) | Population_passport.csv | ~50KB | Download |
| Planting information | Planting_info.csv | ~20KB | Download |
| Environment | Sowing Date | Location | Coordinates | Altitude (m) |
|---|---|---|---|---|
| E1 | 2018-10 | Chongzhou, Sichuan | 30°63'N, 103°67'E | 1300 |
| E2 | 2018-10 | Yangling, Shaanxi | 34°28'N, 108°07'E | 517 |
| E3 | 2019-01 | Yangling, Shaanxi | 34°28'N, 108°07'E | 517 |
| E4 | 2019-10 | Yangling, Shaanxi | 34°28'N, 108°07'E | 517 |
| E5 | 2020-01 | Yangling, Shaanxi | 34°28'N, 108°07'E | 517 |
| E6 | 2020-10 | Chongzhou, Sichuan | 30°63'N, 103°67'E | 1300 |
| E7 | 2020-10 | Yangling, Shaanxi | 34°28'N, 108°07'E | 517 |
| E8 | 2021-01 | Yangling, Shaanxi | 34°28'N, 108°07'E | 517 |
| E9 | 2021-10 | Yangling, Shaanxi | 34°28'N, 108°07'E | 517 |
| E10 | 2022-01 | Yangling, Shaanxi | 34°28'N, 108°07'E | 517 |
| E11 | 2022-10 | Yangling, Shaanxi | 34°28'N, 108°07'E | 517 |
| E12 | 2023-01 | Yangling, Shaanxi | 34°28'N, 108°07'E | 517 |
In collaboration with Wuhan Frasergen Company, large-scale RNA sequencing (RNA-seq) and assembly were performed on the seedling roots of 406 wheat accessions, leading to the identification of a total of 1,232,311 single nucleotide polymorphisms (SNPs) (Figure 2). Evaluation using the wheat 660K SNP microarray showed that the accuracy of the identified SNPs was >99%, and approximately half (48.43%) of these SNPs were located in the coding DNA sequence (CDS) region. The gene expression data included the expression levels (in transcripts per million, TPM) of both high-confidence and low-confidence genes. This dataset identified 39,243 LC genes in wheat roots
| Chromosome | File Name | File Size | SNP Count | Download |
|---|---|---|---|---|
| 1A | SNP_406_impute.zip | ~1GB | 58,234 | Download |
| Data Type | File Name | File Size | Download |
|---|---|---|---|
| TPM-normalized expression data | TPM_406_HC_LC.Un.txt | ~900MB | Download |
This dataset contains meteorological measurements—including maximum and minimum temperature, precipitation, sunshine duration, relative humidity, and solar radiation—collected from seven environments. Users may download the data on a per-environment basis.
| Description | File Name | File Size | Download |
|---|---|---|---|
| Combined meteorological data for all environments (2020-2022) | Meteorology_all_environments.xlsx | ~65kb | Download |
Includes root morphological and architectural traits measured at 14 days after germination (DAG) using image analysis. Traits include total root length, root surface area, root volume, average root diameter, and fresh root weight.
| Measurement Stage | Traits Included | File Name | File Size | Download |
|---|---|---|---|---|
| 14 days after germination (DAG) | Established seedling root traits | Root_DAG14.xlsx | ~58KB | Download |
For academic research only. Please cite our publications when using this data. Contact us for commercial use inquiries.
Lab Website：http://iwheat.net
Address：National & Local Joint Engineering Research Center for Crop Stress Resistance, College of Agronomy, Northwest A&F University