Exploiting Genomic Resources for Efficient Conservation and Use of Chickpea, Groundnut, and Pigeonpea Collections for Crop Improvement
2013
hari d. upadhyaya | sangam l. dwivedi | c. l. laxmipathi gowda | shivali sharma | rajeev k. varshney
Both chickpea and pigeonpea are important dietary source of protein, while groundnut is one ofthe 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 relativesof chickpea, pigeonpea, and groundnut from 133 countries. These genetic resources arereservoirs 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 identifytrait-specific genetically diverse germplasm for use in breeding and genomic studies in thesecrops. Chickpea, groundnut and pigeonpea have moved from ?orphan? to ?genomic resources richcrops?. The chickpea and pigeonpea genomes have been decoded, and the sequences ofgroundnut genome will soon be available. With the availability of these genomic resources, thegermplasm curators, breeders and molecular biologists will have abundant opportunities toenhance 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, particularlywith 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 enhancedefficiency and efficacy of crop improvement. Resistance to some pests and diseases has beensuccessfully transferred from wild relatives to cultivated species
显示更多 [+] 显示较少 [-]C. L. Laxmipathi Gowda et al., 'Exploiting Genomic Resources for Efficient Conservation and Use of Chickpea, Groundnut, and Pigeonpea Collections for Crop Improvement', The Plant Genome, vol. 6(3), p.0, Crop Science Society of America, 2013
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