Exploiting genomic resources for efficient conservation and utilization of chickpea, groundnut, and pigeonpea collections for crop improvement

Gowda, C L L and Upadhyaya, H D and Sharma, S and Varshney, R K and Dwivedi, S L (2013) Exploiting genomic resources for efficient conservation and utilization of chickpea, groundnut, and pigeonpea collections for crop improvement. The Plant Genome, 6 (3). pp. 1-28. ISSN 1940-3372

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Both chickpea and pigeonpea are important dietary source of protein, while groundnut is one of the major oil crops. Globally, ~1.1 million grain legume accessions are conserved in genebanks, of which, ICRISAT genebank holds ~50,000 accessions of cultivated species and wild relatives of chickpea, pigeonpea, and groundnut from 133 countries. These genetic resources are reservoirs of many useful genes for the present and future crop improvement programs. Representative subsets in the form of core and mini core collections have been used to identify trait-specific genetically diverse germplasm for use in breeding and genomic studies in these crops. Chickpea, groundnut and pigeonpea have moved from ‘orphan’ to ‘genomic resources rich crops’. The chickpea and pigeonpea genomes have been decoded, and the sequences of groundnut genome will soon be available. With the availability of these genomic resources, the germplasm curators, breeders and molecular biologists will have abundant opportunities to enhance the efficiency of genebank operations, mine allelic variations in germplasm collection, identify genetically diverse germplasm with beneficial traits, broaden the cultigen’s genepool, and accelerate the cultivar development to address new challenges to production, particularly with respect to climate change and variability. Marker-assisted breeding approaches have already been initiated for some traits in chickpea and groundnut, which should lead to enhanced efficiency and efficacy of crop improvement. Resistance to some pests and diseases has been successfully transferred from wild relatives to cultivated species.

Item Type: Article
Divisions: RP-Grain Legumes
CRP: CGIAR Research Program on Grain Legumes
Uncontrolled Keywords: Grain legumes, genetic and genomic resources, mini core collection, inter-specific gene transfer
Subjects: Mandate crops > Chickpea
Mandate crops > Pigeonpea
Mandate crops > Groundnut
Depositing User: Mr Sanat Kumar Behera
Date Deposited: 26 Nov 2013 06:32
Last Modified: 21 Oct 2016 05:57
URI: http://oar.icrisat.org/id/eprint/7256
Official URL: http://dx.doi.org/10.3835/plantgenome2013.05.0016
Projects: CGIAR Research Program on Grain Legumes
Acknowledgement: This work has been undertaken as part of the CGIAR Research Program on Grain Legumes. ICRISAT is a member of the CGIAR consortium.
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