Resequencing of global Tartary buckwheat accessions reveals multiple domestication events and key loci associated with agronomic traits

Zhang, Kaixuan;He, Ming;Fan, Yu;Zhao, Hui;Quinet, Muriel;et.al.
(2021) Genome Biology — Vol. 22, n° 1, p. 23 (2021)

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Authors
  • Zhang, KaixuanInstitute of Crop Sciences, Chinese Academy of Agricultural Sciences, Room 107, Ziyuan North Building, Xueyuan South Road No. 80, Haidian District, Beijing, 100081, China
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  • He, MingInstitute of Crop Sciences, Chinese Academy of Agricultural Sciences, Room 107, Ziyuan North Building, Xueyuan South Road No. 80, Haidian District, Beijing, 100081, China
    Author
  • Fan, YuInstitute of Crop Sciences, Chinese Academy of Agricultural Sciences, Room 107, Ziyuan North Building, Xueyuan South Road No. 80, Haidian District, Beijing, 100081, China
    Author
  • Zhao, HuiInstitute of Crop Sciences, Chinese Academy of Agricultural Sciences, Room 107, Ziyuan North Building, Xueyuan South Road No. 80, Haidian District, Beijing, 100081, China
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  • Quinet, Murielorcid-logoUCLouvain
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  • et. al.
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Abstract
Background Tartary buckwheat (Fagopyrum tataricum) is a nutritionally balanced and flavonoid-rich crop plant that has been in cultivation for 4000 years and is now grown globally. Despite its nutraceutical and agricultural value, the characterization of its genetics and its domestication history is limited. Results Here, we report a comprehensive database of Tartary buckwheat genomic variation based on whole-genome resequencing of 510 germplasms. Our analysis suggests that two independent domestication events occurred in southwestern and northern China, resulting in diverse characteristics of modern Tartary buckwheat varieties. Genome-wide association studies for important agricultural traits identify several candidate genes, including FtUFGT3 and FtAP2YT1 that significantly correlate with flavonoid accumulation and grain weight, respectively. Conclusions We describe the domestication history of Tartary buckwheat and provide a detailed resource of genomic variation to allow for genomic-assisted breeding in the improvement of elite cultivars.
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Zhang, K., He, M., Fan, Y., Zhao, H., Gao, B., Yang, K., Li, F., Tang, Y., Gao, Q., Lin, T., Quinet, M., & et al. (2021). Resequencing of global Tartary buckwheat accessions reveals multiple domestication events and key loci associated with agronomic traits. Genome Biology, 22(1), 23. https://doi.org/10.1186/s13059-020-02217-7 (Original work published 2021)