Population genomics unravels the Holocene history of Triticum-Aegilops species
Deep knowledge of crop biodiversity is essential to improve global food security. Despite bread wheat serving as a keystone crop worldwide, the population history of bread wheat and its wild relatives (a.k.a. wheats) remains elusive. By analyzing whole-genome sequences of 795 wheats, we found that b...
| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Language: | Inglés |
| Published: |
Cold Spring Harbor Laboratory
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/130612 |
| _version_ | 1855525745423548416 |
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| author | Zhao, X. Deng, T. Kang, L. Bi, A. Xu, D. Zhang, Z. Jijin, Z.H.G. Yang, X. Xu, J. Xu, S. Song, X. Zhang, M. Li, Y. Kear, P. Wang, J. Yin, C. Liu, Z. Li, W. Lu, F. |
| author_browse | Bi, A. Deng, T. Jijin, Z.H.G. Kang, L. Kear, P. Li, W. Li, Y. Liu, Z. Lu, F. Song, X. Wang, J. Xu, D. Xu, J. Xu, S. Yang, X. Yin, C. Zhang, M. Zhang, Z. Zhao, X. |
| author_facet | Zhao, X. Deng, T. Kang, L. Bi, A. Xu, D. Zhang, Z. Jijin, Z.H.G. Yang, X. Xu, J. Xu, S. Song, X. Zhang, M. Li, Y. Kear, P. Wang, J. Yin, C. Liu, Z. Li, W. Lu, F. |
| author_sort | Zhao, X. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Deep knowledge of crop biodiversity is essential to improve global food security. Despite bread wheat serving as a keystone crop worldwide, the population history of bread wheat and its wild relatives (a.k.a. wheats) remains elusive. By analyzing whole-genome sequences of 795 wheats, we found that bread wheat originated southwest of the Caspian Sea ∼11,700 years ago and underwent a slow speciation process, lasting ∼3,300 years due to persistent gene flow from wild relatives. Soon after, bread wheat spread across Eurasia and reached Europe, South Asia, and East Asia ∼7,000 to ∼5,000 years ago, shaping a diversified but occasionally convergent adaptive landscape of bread wheat in novel environments. Opposite to cultivated wheat, wild wheat populations have declined by ∼82% in the past ∼2,000 years due to the food choice shift of humans, and likely continue to drop because of the changing climate. These findings will guide future efforts in protecting and utilizing wheat biodiversity to improve global food security. |
| format | Preprint |
| id | CGSpace130612 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Cold Spring Harbor Laboratory |
| publisherStr | Cold Spring Harbor Laboratory |
| record_format | dspace |
| spelling | CGSpace1306122025-01-27T15:00:52Z Population genomics unravels the Holocene history of Triticum-Aegilops species Zhao, X. Deng, T. Kang, L. Bi, A. Xu, D. Zhang, Z. Jijin, Z.H.G. Yang, X. Xu, J. Xu, S. Song, X. Zhang, M. Li, Y. Kear, P. Wang, J. Yin, C. Liu, Z. Li, W. Lu, F. population genomics triticum aegilops Deep knowledge of crop biodiversity is essential to improve global food security. Despite bread wheat serving as a keystone crop worldwide, the population history of bread wheat and its wild relatives (a.k.a. wheats) remains elusive. By analyzing whole-genome sequences of 795 wheats, we found that bread wheat originated southwest of the Caspian Sea ∼11,700 years ago and underwent a slow speciation process, lasting ∼3,300 years due to persistent gene flow from wild relatives. Soon after, bread wheat spread across Eurasia and reached Europe, South Asia, and East Asia ∼7,000 to ∼5,000 years ago, shaping a diversified but occasionally convergent adaptive landscape of bread wheat in novel environments. Opposite to cultivated wheat, wild wheat populations have declined by ∼82% in the past ∼2,000 years due to the food choice shift of humans, and likely continue to drop because of the changing climate. These findings will guide future efforts in protecting and utilizing wheat biodiversity to improve global food security. 2022-04-10 2023-06-02T18:30:14Z 2023-06-02T18:30:14Z Preprint https://hdl.handle.net/10568/130612 en Open Access Cold Spring Harbor Laboratory Zhao, X.; Deng, T.; Kang, L.; Bi, A.; Xu, D.; Zhang, Z.; Jijin, Z.H.G.; Yang, X.; Xu, J.; Xu, S.; Song, X.; Zhang, M.; Li, Y.; Kear, P.; Wang, J.; Yin, C.; Liu, Z.; Li, W.; Lu, F. 2022. Population genomics unravels the Holocene history of Triticum-Aegilops species. bioRxiv. ISSN 2692-8205. 47 p. |
| spellingShingle | population genomics triticum aegilops Zhao, X. Deng, T. Kang, L. Bi, A. Xu, D. Zhang, Z. Jijin, Z.H.G. Yang, X. Xu, J. Xu, S. Song, X. Zhang, M. Li, Y. Kear, P. Wang, J. Yin, C. Liu, Z. Li, W. Lu, F. Population genomics unravels the Holocene history of Triticum-Aegilops species |
| title | Population genomics unravels the Holocene history of Triticum-Aegilops species |
| title_full | Population genomics unravels the Holocene history of Triticum-Aegilops species |
| title_fullStr | Population genomics unravels the Holocene history of Triticum-Aegilops species |
| title_full_unstemmed | Population genomics unravels the Holocene history of Triticum-Aegilops species |
| title_short | Population genomics unravels the Holocene history of Triticum-Aegilops species |
| title_sort | population genomics unravels the holocene history of triticum aegilops species |
| topic | population genomics triticum aegilops |
| url | https://hdl.handle.net/10568/130612 |
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