Bohra, A and Jha, U C and Naik, S J S and Mehta, S and Tiwari, A and Maurya, A K and Singh, D and Yadav, V and Patil, P G and Saxena, R K and Varshney, R K (2021) Genomics: Shaping Legume Improvement. In: Genetic Enhancement in Major Food Legumes. Springer, Cham, Switzerland AG, pp. 49-89. ISBN 978-3-030-64500-7
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Legume crops are important to global food security and sustainability of agricultural systems. However, low and unstable yield of grain legumes as compared to cereals has been a major bottleneck in the expansion of cultivation area in these crops. The past two decades have witnessed remarkable growth in genomics-derived improvement in most of the crop species including legumes. Genomics-assisted approaches have enabled the fast-track development of varieties with agriculturally important traits in these crops. Further the search of more efficient and accurate methods has opened avenues for genomic selection (GS) implementation in crop improvement programs. Initial reports on GS in legumes are encouraging, and these studies are guiding researchers for optimal resource utilization for enhancing prediction ability of line performance. Efforts to shorten long generation time through optimization of rapid generation technologies (RGT) in legumes have further enhanced the ability of genomics-based crop improvement. Legume crops such as pigeonpea and soybean are also exploiting heterosis to boost yield gains. In this regard, genomics advances have been made to support hybrid breeding efforts in these crops. Further, new strategies like sequence-based breeding have been proposed which efficiently combine population improvement with GS and genome-wide association (GWAS). In this chapter, we summarize the major breakthroughs in legume genomics and molecular breeding. This is accompanied by a brief discussion on recent cases that apply GS and speed breeding in grain legumes. We conclude this chapter by highlighting future scope and limitations of adopting new genomics and breeding tools for shaping legume improvement.
| Item Type: | Book Section |
|---|---|
| Divisions: | Research Program : Genetic Gains |
| CRP: | CGIAR Research Program on Grain Legumes and Dryland Cereals (GLDC) |
| Uncontrolled Keywords: | Legumes, Genetic gain, Molecular mapping, Genomic selection, Speed breeding |
| Subjects: | Others > Genetics and Genomics Others > Legume Crops |
| Depositing User: | Mr Nagaraju T |
| Date Deposited: | 12 Mar 2024 03:49 |
| Last Modified: | 12 Mar 2024 03:49 |
| URI: | http://oar.icrisat.org/id/eprint/12563 |
| Acknowledgement: | UNSPECIFIED |
| Links: |
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