Tritordeum, barley landraces and ear photosynthesis are key players in cereal resilience under future extreme drought conditions
Drought is the main factor limiting cereal production in the Mediterranean basin and Climate Change will exacerbate its effects. Among the strategies to mitigate Climate Change impact on cereal production, we highlight the development of drought-resilient crops better adapted to future extreme condi...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Plant Stress |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667064X25000302 |
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| author | Ander Yoldi-Achalandabaso Aitor Agirresarobe Artūrs Katamadze Giulia Burini Omar Vergara-Díaz Mariana Mota Cristina Oliveira Usue Pérez-López Rubén Vicente |
| author_facet | Ander Yoldi-Achalandabaso Aitor Agirresarobe Artūrs Katamadze Giulia Burini Omar Vergara-Díaz Mariana Mota Cristina Oliveira Usue Pérez-López Rubén Vicente |
| author_sort | Ander Yoldi-Achalandabaso |
| collection | DOAJ |
| description | Drought is the main factor limiting cereal production in the Mediterranean basin and Climate Change will exacerbate its effects. Among the strategies to mitigate Climate Change impact on cereal production, we highlight the development of drought-resilient crops better adapted to future extreme conditions, either by i) using heritage germplasm (e.g., landraces) or ii) developing novel species (e.g., crop hybrids). Our study aimed to identify key functional traits and stress-tolerant germplasm to contribute to designing drought-resilient crops under future Mediterranean climatic conditions. For that, we conducted an innovative approach combining a late-sowing field trial with two contrasting water regimes to simulate future extreme drought conditions, the use of high-throughput phenotyping devices and an infrared gas analyser to characterise leaf and ear photosynthesis, biochemistry, growth, and stress responses during the reproductive stage, and a novel linear mixed-effects model to integrate these results with final agronomical data. Modern durum wheat and barley, barley landraces and tritordeum varieties were grown and evaluated as individual plants. Our results identified barley landrace SBCC010 and tritordeum Coique as promising resilient germplasm. These genotypes showed a grain set maintenance and a higher allocation of resources to the ears compared to modern varieties, higher leaf and ear greenness, and ear photosynthesis and thermostability during the reproductive stage, particularly under stress conditions. We conclude the necessity of including ear photosynthesis in the breeding programs relying on adaptive germplasm as barley landraces and novel cereal hybrids as tritordeum to design drought-resilient cereals for future extreme Mediterranean environments. |
| format | Article |
| id | doaj-art-8e9e58e0134f4d1b865dbba1fafd6dbe |
| institution | Kabale University |
| issn | 2667-064X |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Plant Stress |
| spelling | doaj-art-8e9e58e0134f4d1b865dbba1fafd6dbe2025-02-12T05:33:03ZengElsevierPlant Stress2667-064X2025-03-0115100765Tritordeum, barley landraces and ear photosynthesis are key players in cereal resilience under future extreme drought conditionsAnder Yoldi-Achalandabaso0Aitor Agirresarobe1Artūrs Katamadze2Giulia Burini3Omar Vergara-Díaz4Mariana Mota5Cristina Oliveira6Usue Pérez-López7Rubén Vicente8Fisioklima-AgroSosT Group, Department of Plant Biology and Ecology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain; Plant Ecophysiology and Metabolism Group, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Oeiras, Portugal; Corresponding authors.Fisioklima-AgroSosT Group, Department of Plant Biology and Ecology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, SpainPlant Ecophysiology and Metabolism Group, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Oeiras, PortugalPlant Ecophysiology and Metabolism Group, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Oeiras, Portugal; Scuola Superiore Sant'Anna, Pisa, ItalyPlant Ecophysiology and Metabolism Group, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Oeiras, PortugalLinking Landscape, Environment, Agriculture and Food Research Center (LEAF), Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Lisboa, PortugalLinking Landscape, Environment, Agriculture and Food Research Center (LEAF), Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Lisboa, PortugalFisioklima-AgroSosT Group, Department of Plant Biology and Ecology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, SpainPlant Ecophysiology and Metabolism Group, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Oeiras, Portugal; Department of Abiotic Stress, Institute of Natural Resources and Agrobiology of Salamanca (IRNASA), Spanish National Research Council (CSIC), Salamanca, Spain; Corresponding authors.Drought is the main factor limiting cereal production in the Mediterranean basin and Climate Change will exacerbate its effects. Among the strategies to mitigate Climate Change impact on cereal production, we highlight the development of drought-resilient crops better adapted to future extreme conditions, either by i) using heritage germplasm (e.g., landraces) or ii) developing novel species (e.g., crop hybrids). Our study aimed to identify key functional traits and stress-tolerant germplasm to contribute to designing drought-resilient crops under future Mediterranean climatic conditions. For that, we conducted an innovative approach combining a late-sowing field trial with two contrasting water regimes to simulate future extreme drought conditions, the use of high-throughput phenotyping devices and an infrared gas analyser to characterise leaf and ear photosynthesis, biochemistry, growth, and stress responses during the reproductive stage, and a novel linear mixed-effects model to integrate these results with final agronomical data. Modern durum wheat and barley, barley landraces and tritordeum varieties were grown and evaluated as individual plants. Our results identified barley landrace SBCC010 and tritordeum Coique as promising resilient germplasm. These genotypes showed a grain set maintenance and a higher allocation of resources to the ears compared to modern varieties, higher leaf and ear greenness, and ear photosynthesis and thermostability during the reproductive stage, particularly under stress conditions. We conclude the necessity of including ear photosynthesis in the breeding programs relying on adaptive germplasm as barley landraces and novel cereal hybrids as tritordeum to design drought-resilient cereals for future extreme Mediterranean environments.http://www.sciencedirect.com/science/article/pii/S2667064X25000302Barley landracesClimate changeDroughtEar photosynthesisLinear mixed-effects modelsPlant phenotyping |
| spellingShingle | Ander Yoldi-Achalandabaso Aitor Agirresarobe Artūrs Katamadze Giulia Burini Omar Vergara-Díaz Mariana Mota Cristina Oliveira Usue Pérez-López Rubén Vicente Tritordeum, barley landraces and ear photosynthesis are key players in cereal resilience under future extreme drought conditions Plant Stress Barley landraces Climate change Drought Ear photosynthesis Linear mixed-effects models Plant phenotyping |
| title | Tritordeum, barley landraces and ear photosynthesis are key players in cereal resilience under future extreme drought conditions |
| title_full | Tritordeum, barley landraces and ear photosynthesis are key players in cereal resilience under future extreme drought conditions |
| title_fullStr | Tritordeum, barley landraces and ear photosynthesis are key players in cereal resilience under future extreme drought conditions |
| title_full_unstemmed | Tritordeum, barley landraces and ear photosynthesis are key players in cereal resilience under future extreme drought conditions |
| title_short | Tritordeum, barley landraces and ear photosynthesis are key players in cereal resilience under future extreme drought conditions |
| title_sort | tritordeum barley landraces and ear photosynthesis are key players in cereal resilience under future extreme drought conditions |
| topic | Barley landraces Climate change Drought Ear photosynthesis Linear mixed-effects models Plant phenotyping |
| url | http://www.sciencedirect.com/science/article/pii/S2667064X25000302 |
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