Janila, P and Variath, M T and Pandey, M K and Desmae, H and Motagi, B N and Okori, P and Manohar, S S and Rathnakumar, A L and Radhakrishnan, T and Liao, B and Varshney, R K (2016) Genomic Tools in Groundnut Breeding Program: Status and Perspectives. Frontiers in Plant Science, 07 (289). 01-15. ISSN 1664-462X
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Abstract
Groundnut, a nutrient-rich food legume, is cultivated world over. It is valued for its good quality cooking oil, energy and protein rich food, and nutrient-rich fodder. Globally, groundnut improvement programs have developed varieties to meet the preferences of farmers, traders, processors, and consumers. Enhanced yield, tolerance to biotic and abiotic stresses and quality parameters have been the target traits. Spurt in genetic information of groundnut was facilitated by development of molecular markers, genetic, and physical maps, generation of expressed sequence tags (EST), discovery of genes, and identification of quantitative trait loci (QTL) for some important biotic and abiotic stresses and quality traits. The first groundnut variety developed using marker assisted breeding (MAB) was registered in 2003. Since then, USA, China, Japan, and India have begun to use genomic tools in routine groundnut improvement programs. Introgression lines that combine foliar fungal disease resistance and early maturity were developed using MAB. Establishment of marker-trait associations (MTA) paved way to integrate genomic tools in groundnut breeding for accelerated genetic gain. Genomic Selection (GS) tools are employed to improve drought tolerance and pod yield, governed by several minor effect QTLs. Draft genome sequence and low cost genotyping tools such as genotyping by sequencing (GBS) are expected to accelerate use of genomic tools to enhance genetic gains for target traits in groundnut.
| Item Type: | Article |
|---|---|
| Divisions: | RP-Grain Legumes |
| CRP: | CGIAR Research Program on Grain Legumes |
| Uncontrolled Keywords: | Groundnut, Breeding, Selection, Genomics, Markers, Varieties, Genomic Tools, Groundnut Breeding, Peanut |
| Subjects: | Mandate crops > Groundnut Others > Genetics and Genomics |
| Depositing User: | Mr Ramesh K |
| Date Deposited: | 01 Apr 2016 09:55 |
| Last Modified: | 21 Oct 2016 09:24 |
| URI: | http://oar.icrisat.org/id/eprint/9402 |
| Official URL: | http://dx.doi.org/10.3389/fpls.2016.00289 |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | The authors profoundly acknowledge the financial assistance received from CGIAR Generation Challenge Program (GCP), Bill and Melinda Gates Foundation (BMGF) through Tropical Legumes-I and II, Department of Agriculture and Cooperation, Government of India for supporting the development and deployment of genomic tools in groundnut improvement. The research at ICRISAT is carried out under CRP-Grain Legumes. |
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