Using Biotechnology-Led Approaches to Uplift Cereal and Food Legume Yields in Dryland Environments
Drought and heat in dryland agriculture challenge the enhancement of crop productivity and threaten global food security. This review is centered on harnessing genetic variation through biotechnology-led approaches to select for increased productivity and stress tolerance that will enhance crop adap...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2018-08-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fpls.2018.01249/full |
| _version_ | 1818693199893364736 |
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| author | Sangam L. Dwivedi Kadambot H. M. Siddique Muhammad Farooq Muhammad Farooq Muhammad Farooq Philip K. Thornton Rodomiro Ortiz |
| author_facet | Sangam L. Dwivedi Kadambot H. M. Siddique Muhammad Farooq Muhammad Farooq Muhammad Farooq Philip K. Thornton Rodomiro Ortiz |
| author_sort | Sangam L. Dwivedi |
| collection | DOAJ |
| description | Drought and heat in dryland agriculture challenge the enhancement of crop productivity and threaten global food security. This review is centered on harnessing genetic variation through biotechnology-led approaches to select for increased productivity and stress tolerance that will enhance crop adaptation in dryland environments. Peer-reviewed literature, mostly from the last decade and involving experiments with at least two seasons’ data, form the basis of this review. It begins by highlighting the adverse impact of the increasing intensity and duration of drought and heat stress due to global warming on crop productivity and its impact on food and nutritional security in dryland environments. This is followed by (1) an overview of the physiological and molecular basis of plant adaptation to elevated CO2 (eCO2), drought, and heat stress; (2) the critical role of high-throughput phenotyping platforms to study phenomes and genomes to increase breeding efficiency; (3) opportunities to enhance stress tolerance and productivity in food crops (cereals and grain legumes) by deploying biotechnology-led approaches [pyramiding quantitative trait loci (QTL), genomic selection, marker-assisted recurrent selection, epigenetic variation, genome editing, and transgene) and inducing flowering independent of environmental clues to match the length of growing season; (4) opportunities to increase productivity in C3 crops by harnessing novel variations (genes and network) in crops’ (C3, C4) germplasm pools associated with increased photosynthesis; and (5) the adoption, impact, risk assessment, and enabling policy environments to scale up the adoption of seed-technology to enhance food and nutritional security. This synthesis of technological innovations and insights in seed-based technology offers crop genetic enhancers further opportunities to increase crop productivity in dryland environments. |
| first_indexed | 2024-12-17T13:09:54Z |
| format | Article |
| id | doaj.art-21f2c66d3b2e41ef86fd410cf7bc0b55 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-17T13:09:54Z |
| publishDate | 2018-08-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-21f2c66d3b2e41ef86fd410cf7bc0b552022-12-21T21:47:08ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2018-08-01910.3389/fpls.2018.01249393361Using Biotechnology-Led Approaches to Uplift Cereal and Food Legume Yields in Dryland EnvironmentsSangam L. Dwivedi0Kadambot H. M. Siddique1Muhammad Farooq2Muhammad Farooq3Muhammad Farooq4Philip K. Thornton5Rodomiro Ortiz6Independent Researcher, Hyderabad, IndiaThe UWA Institute of Agriculture, The University of Western Australia, Perth, WA, AustraliaThe UWA Institute of Agriculture, The University of Western Australia, Perth, WA, AustraliaDepartment of Crop Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al Khoud, OmanUniversity of Agriculture, Faisalabad, PakistanCGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), International Livestock Research Institute (ILRI), Nairobi, KenyaDepartment of Plant Breeding, Swedish University of Agricultural Sciences, Alnarp, SwedenDrought and heat in dryland agriculture challenge the enhancement of crop productivity and threaten global food security. This review is centered on harnessing genetic variation through biotechnology-led approaches to select for increased productivity and stress tolerance that will enhance crop adaptation in dryland environments. Peer-reviewed literature, mostly from the last decade and involving experiments with at least two seasons’ data, form the basis of this review. It begins by highlighting the adverse impact of the increasing intensity and duration of drought and heat stress due to global warming on crop productivity and its impact on food and nutritional security in dryland environments. This is followed by (1) an overview of the physiological and molecular basis of plant adaptation to elevated CO2 (eCO2), drought, and heat stress; (2) the critical role of high-throughput phenotyping platforms to study phenomes and genomes to increase breeding efficiency; (3) opportunities to enhance stress tolerance and productivity in food crops (cereals and grain legumes) by deploying biotechnology-led approaches [pyramiding quantitative trait loci (QTL), genomic selection, marker-assisted recurrent selection, epigenetic variation, genome editing, and transgene) and inducing flowering independent of environmental clues to match the length of growing season; (4) opportunities to increase productivity in C3 crops by harnessing novel variations (genes and network) in crops’ (C3, C4) germplasm pools associated with increased photosynthesis; and (5) the adoption, impact, risk assessment, and enabling policy environments to scale up the adoption of seed-technology to enhance food and nutritional security. This synthesis of technological innovations and insights in seed-based technology offers crop genetic enhancers further opportunities to increase crop productivity in dryland environments.https://www.frontiersin.org/article/10.3389/fpls.2018.01249/fulladoption and impactapplied genomicsgene editingglobal warmingphenomicsphotosynthesis |
| spellingShingle | Sangam L. Dwivedi Kadambot H. M. Siddique Muhammad Farooq Muhammad Farooq Muhammad Farooq Philip K. Thornton Rodomiro Ortiz Using Biotechnology-Led Approaches to Uplift Cereal and Food Legume Yields in Dryland Environments Frontiers in Plant Science adoption and impact applied genomics gene editing global warming phenomics photosynthesis |
| title | Using Biotechnology-Led Approaches to Uplift Cereal and Food Legume Yields in Dryland Environments |
| title_full | Using Biotechnology-Led Approaches to Uplift Cereal and Food Legume Yields in Dryland Environments |
| title_fullStr | Using Biotechnology-Led Approaches to Uplift Cereal and Food Legume Yields in Dryland Environments |
| title_full_unstemmed | Using Biotechnology-Led Approaches to Uplift Cereal and Food Legume Yields in Dryland Environments |
| title_short | Using Biotechnology-Led Approaches to Uplift Cereal and Food Legume Yields in Dryland Environments |
| title_sort | using biotechnology led approaches to uplift cereal and food legume yields in dryland environments |
| topic | adoption and impact applied genomics gene editing global warming phenomics photosynthesis |
| url | https://www.frontiersin.org/article/10.3389/fpls.2018.01249/full |
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