Varshney, R K and Thudi, M and Pandey, M K and Tardieu, F and Ojiewo, C O and Vadez, V and Whitbread, A M and Siddique, K H M and Nguyen, H T and Carberry, P S and Bergvinson, D (2018) Accelerating Genetic Gains in Legumes for the Development of Prosperous Smallholder Agriculture: Integrating Genomics, Phenotyping, Systems Modelling and Agronomy. Journal of Experimental Botany (TSI), 69 (13). pp. 3293-3312. ISSN 0022-0957
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Abstract
Grain legumes form an important component of the human diet, feed for livestock and replenish soil fertility through biological nitrogen fixation. Globally, the demand for food legumes is increasing as they complement cereals in protein requirements and possess a high percentage of digestible protein. Climate change has enhanced the frequency and intensity of drought stress that is posing serious production constraints, especially in rainfed regions where most legumes are produced. Genetic improvement of legumes, like other crops, is mostly based on pedigree and performance-based selection over the last half century. For achieving faster genetic gains in legumes in rainfed conditions, this review article proposes the integration of modern genomics approaches, high throughput phenomics and simulation modelling as support for crop improvement that leads to improved varieties that perform with appropriate agronomy. Selection intensity, generation interval and improved operational efficiencies in breeding are expected to further enhance the genetic gain in experiment plots. Improved seed access to farmers, combined with appropriate agronomic packages in farmers’ fields, will deliver higher genetic gains. Enhanced genetic gains including not only productivity but also nutritional and market traits will increase the profitability of farmers and the availability of affordable nutritious food especially in developing countries.
| Item Type: | Article |
|---|---|
| Divisions: | Research Program : Genetic Gains Research Program : Innovation Systems for the Drylands (ISD) |
| CRP: | CGIAR Research Program on Grain Legumes and Dryland Cereals (GLDC) |
| Uncontrolled Keywords: | Genetic gains, legumes, rainfed, drought stress, genomics-assisted breeding, smallholder agriculture, integrating genomics, phenotyping, systems modelling, agronomy |
| Subjects: | Others > Crop Improvement Others > Drought Tolerance Others > Genetic Engineering Others > Smallholder Farmers Others > Smallholder Agriculture Others > Genetics and Genomics Others > Legume Crops |
| Depositing User: | Mr Ramesh K |
| Date Deposited: | 20 Apr 2018 09:45 |
| Last Modified: | 06 Sep 2018 08:25 |
| URI: | http://oar.icrisat.org/id/eprint/10621 |
| Official URL: | http://dx.doi.org/10.1093/jxb/ery088 |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | The authors from ICRISAT are thankful to the Bill & Melinda Gates Foundation (Tropical Legumes I, II & III), United States Agency for International Development (USAID), MARS Chocolate Inc., Indian Council of Agricultural Research (ICAR), and Department of Biotechnology (DBT) of Government of India. The work reported in this article was undertaken as a part of the CGIAR Research Program on Grain Legumes and Dryland Cereals (GLDC). ICRISAT is a member of the CGIAR. |
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