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Population genomic analysis of Aegilops tauschii identifies targets for bread wheat improvement

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Title Population genomic analysis of Aegilops tauschii identifies targets for bread wheat improvement
 
Creator Gaurav, Kumar
Sanu Arora
Silva, Paula
Sánchez Martín, Javier
Horsnell, Richard
Liangliang Gao
Brar, Gurcharn S.
Widrig, Victoria
Raupp, W. John
Shuangye Wu
Singh, Narinder
Sandip Kale
Chinoy, Catherine
Nicholson, Paul
Quiroz Chávez, Jesús
Simmonds, James
Hayta, Sadiye
Smedley, Mark A.
Harwood, Wendy
Pearce, Suzannah
Gilbert, David
Ngonidzashe Kangara
Gardener, Catherine
Forner-Martínez, Macarena
Jiaqian Liu
Guotai Yu
Boden, Scott A.
Pascucci, Attilio
Ghosh, Sreya
Hafeez, Amber N.
O’Hara, Tom
Waites, Joshua
Cheema, Jitender
Steuernagel, Burkhard
Patpour, Mehran
Justesen, Annemarie Fejer
Shuyu Liu
Rudd, Jackie C.
Avni, Raz
Sharon, Amir
Steiner, Barbara
Kirana, Rizky Pasthika
Buerstmayr, Hermann
Mehrabi, Ali A.
Nasyrova, Firuza Y.
Chayut, Noam
Matny, Oadi
Steffenson, Brian J.
Sandhu, Nitika
Chhuneja, Parveen
Lagudah, Evans S.
Elkot, Ahmed F.
Tyrrell, Simon
Xingdong Bian
Davey, Robert P.
Simonsen, Martin
Schauser, Leif
Tiwari, Vijay Kumar
Kutcher, H. Randy
Hucl, Pierre J.
Aili Li
Dengcai Liu
Long Mao
Xu, Steven
Brown-Guedira, Gina
Faris, Justin
Dvorak, Jan
Ming-Cheng Luo
Krasileva, Ksenia
Lux, Thomas
Artmeier, Susanne
Mayer, Klaus F.X.
Uauy, Cristobal
Mascher, Martin
Bentley, Alison R.
Keller, Beat
Poland, Jesse A.
Wulff, Brande B. H.
 
Subject population genetics
aegilops
plant breeding
crop improvement
soft wheat
wheat
biomedical engineering
bioengineering
biotechnology
 
Description Aegilops tauschii, the diploid wild progenitor of the D subgenome of bread wheat, is a reservoir of genetic diversity for improving bread wheat performance and environmental resilience. Here we sequenced 242 Ae. tauschii accessions and compared them to the wheat D subgenome to characterize genomic diversity. We found that a rare lineage of Ae. tauschii geographically restricted to present-day Georgia contributed to the wheat D subgenome in the independent hybridizations that gave rise to modern bread wheat. Through k-mer-based association mapping, we identified discrete genomic regions with candidate genes for disease and pest resistance and demonstrated their functional transfer into wheat by transgenesis and wide crossing, including the generation of a library of hexaploids incorporating diverse Ae. tauschii genomes. Exploiting the genomic diversity of the Ae. tauschii ancestral diploid genome permits rapid trait discovery and functional genetic validation in a hexaploid background amenable to breeding.
 
Date 2022-03
2023-01-05T08:29:07Z
2023-01-05T08:29:07Z
 
Type Journal Article
 
Identifier Gaurav, K., Arora, S., Silva, P., Sánchez-Martín, J., Horsnell, R., Gao, L., Brar, G.S., Widrig, V., John Raupp, W., Singh, N., Wu, S., Kale, S.M., Chinoy, C., Nicholson, P., Quiroz-Chávez, J., Sim-monds, J., Hayta, S., Smedley, M.A., Harwood, W. et al 2022. Population genomic analysis of Ae-gilops tauschii identifies targets for bread wheat improvement. Nature Biotechnology 40(3):422–431. https://hdl.handle.net/10883/21731
1546-1696
https://hdl.handle.net/10568/126588
https://hdl.handle.net/10883/21731
https://doi.org/10.1038/s41587-021-01058-4
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format application/pdf
 
Publisher Springer Science and Business Media LLC
 
Source Nature Biotechnology