Population genomics uncover loci for trait improvement in the indigenous African cereal tef (Eragrostis tef)
Tef (Eragrostis tef) is an indigenous African cereal that is gaining global attention as a gluten-free “superfood” with high protein, mineral, and fibre contents. However, tef yields are limited by lodging and by losses during harvest owing its small grain size (150x lighter than wheat). Breeders mu...
| Autores principales: | , , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Lenguaje: | Inglés |
| Publicado: |
2024
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| Acceso en línea: | https://hdl.handle.net/10568/158401 |
| _version_ | 1855514224087793664 |
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| author | Jones, R.W.M. Kebede, Worku Teshome, Abel Girija, Aiswarya Teshome, Adanech Girma, Dejene Brown, K. M. James Quiroz-Chavez, Jesus Jones, Christopher S. Wulff, B. H. Brande Assefa, Kebebew Tadele, Zerihun Mur, A. J. Luis, Chanyalew, Solomon Uauy, Cristobal Shorinola, Oluwaseyi |
| author_browse | Assefa, Kebebew Brown, K. M. James Chanyalew, Solomon Girija, Aiswarya Girma, Dejene Jones, Christopher S. Jones, R.W.M. Kebede, Worku Mur, A. J. Luis, Quiroz-Chavez, Jesus Shorinola, Oluwaseyi Tadele, Zerihun Teshome, Abel Teshome, Adanech Uauy, Cristobal Wulff, B. H. Brande |
| author_facet | Jones, R.W.M. Kebede, Worku Teshome, Abel Girija, Aiswarya Teshome, Adanech Girma, Dejene Brown, K. M. James Quiroz-Chavez, Jesus Jones, Christopher S. Wulff, B. H. Brande Assefa, Kebebew Tadele, Zerihun Mur, A. J. Luis, Chanyalew, Solomon Uauy, Cristobal Shorinola, Oluwaseyi |
| author_sort | Jones, R.W.M. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Tef (Eragrostis tef) is an indigenous African cereal that is gaining global attention as a gluten-free “superfood” with high protein, mineral, and fibre contents. However, tef yields are limited by lodging and by losses during harvest owing its small grain size (150x lighter than wheat). Breeders must also consider a strong cultural preference for white-grained over brown-grained varieties. Tef is relatively understudied with limited “omics” resources. Here, we resequenced 220 tef accessions from an Ethiopian diversity collection and also conducted multi-locational phenotyping for 25 agronomic and grain traits. Grain metabolome profiling revealed differential accumulation of fatty acids and flavonoids between white and brown grains. We conductedk-mer and SNP-based genome wide association and uncovered novel marker-trait associations. A significant 70 kb peak for panicle morphology contained the tef orthologue of riceqSH1, a transcription factor regulating inflorescence morphology in cereals. We also observed a previously unknown relationship between grain size, colour, and fatty acids. These traits were highly associated with retrotransposon insertions in homoeologues ofTRANSPARENT TESTA 2, a known regulator of grain colour. Our study provides valuable resources for tef research and breeding, facilitating the development of improved cultivars with desirable agronomic and nutritional properties. |
| format | Preprint |
| id | CGSpace158401 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| record_format | dspace |
| spelling | CGSpace1584012025-09-08T09:09:07Z Population genomics uncover loci for trait improvement in the indigenous African cereal tef (Eragrostis tef) Jones, R.W.M. Kebede, Worku Teshome, Abel Girija, Aiswarya Teshome, Adanech Girma, Dejene Brown, K. M. James Quiroz-Chavez, Jesus Jones, Christopher S. Wulff, B. H. Brande Assefa, Kebebew Tadele, Zerihun Mur, A. J. Luis, Chanyalew, Solomon Uauy, Cristobal Shorinola, Oluwaseyi crops research Tef (Eragrostis tef) is an indigenous African cereal that is gaining global attention as a gluten-free “superfood” with high protein, mineral, and fibre contents. However, tef yields are limited by lodging and by losses during harvest owing its small grain size (150x lighter than wheat). Breeders must also consider a strong cultural preference for white-grained over brown-grained varieties. Tef is relatively understudied with limited “omics” resources. Here, we resequenced 220 tef accessions from an Ethiopian diversity collection and also conducted multi-locational phenotyping for 25 agronomic and grain traits. Grain metabolome profiling revealed differential accumulation of fatty acids and flavonoids between white and brown grains. We conductedk-mer and SNP-based genome wide association and uncovered novel marker-trait associations. A significant 70 kb peak for panicle morphology contained the tef orthologue of riceqSH1, a transcription factor regulating inflorescence morphology in cereals. We also observed a previously unknown relationship between grain size, colour, and fatty acids. These traits were highly associated with retrotransposon insertions in homoeologues ofTRANSPARENT TESTA 2, a known regulator of grain colour. Our study provides valuable resources for tef research and breeding, facilitating the development of improved cultivars with desirable agronomic and nutritional properties. 2024-10-02 2024-11-01T14:21:18Z 2024-11-01T14:21:18Z Preprint https://hdl.handle.net/10568/158401 en Open Access Jones, M.R.W., Kebede, W., Teshome, A., Girija, A., Teshome, A., Girma, D., Brown, J.K.M., Quiroz-Chavez, J., Jones, C.S., Wulff, B.B.H., Assefa, K., Tadele, Z., Mur, L.A.J., Chanyalew, S., Uauy, C. and Shorinola, O. 2024. Population genomics uncover loci for trait improvement in the indigenous African cereal tef (Eragrostis tef). bioRxiv |
| spellingShingle | crops research Jones, R.W.M. Kebede, Worku Teshome, Abel Girija, Aiswarya Teshome, Adanech Girma, Dejene Brown, K. M. James Quiroz-Chavez, Jesus Jones, Christopher S. Wulff, B. H. Brande Assefa, Kebebew Tadele, Zerihun Mur, A. J. Luis, Chanyalew, Solomon Uauy, Cristobal Shorinola, Oluwaseyi Population genomics uncover loci for trait improvement in the indigenous African cereal tef (Eragrostis tef) |
| title | Population genomics uncover loci for trait improvement in the indigenous African cereal tef (Eragrostis tef) |
| title_full | Population genomics uncover loci for trait improvement in the indigenous African cereal tef (Eragrostis tef) |
| title_fullStr | Population genomics uncover loci for trait improvement in the indigenous African cereal tef (Eragrostis tef) |
| title_full_unstemmed | Population genomics uncover loci for trait improvement in the indigenous African cereal tef (Eragrostis tef) |
| title_short | Population genomics uncover loci for trait improvement in the indigenous African cereal tef (Eragrostis tef) |
| title_sort | population genomics uncover loci for trait improvement in the indigenous african cereal tef eragrostis tef |
| topic | crops research |
| url | https://hdl.handle.net/10568/158401 |
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