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Enhancement of the use and impact of germplasm in crop improvement

OAR@ICRISAT

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Relation http://oar.icrisat.org/8519/
http://dx.doi.org/:10.1017/S1479262114000458
 
Title Enhancement of the use and impact of germplasm in crop improvement
 
Creator Upadhyaya, H D
Dwivedi, S L
Sharma, S
Lalitha, N
Singh, S
Varshney, R K
Gowda, C L L
 
Subject Food legumes
 
Description Plant genetic resources are raw materials and their use in breeding is one of the most sustainable ways to conserve biodiversity. The ICRISAT has over 120,000 accessions of its five mandate crops and six small millets. The management and utilization of such large diversity are greatest challenges to germplasm curators and crop breeders. New sources of variations have been discovered using core and minicore collections developed at the ICRISAT. About 1.4 million seed samples have been distributed; some accessions with specific attributes have been requested more frequently. The advances in genomics have led researchers to dissect population structure and diversity and mine allelic variations associated with agronomically beneficial traits. Genome-wide association mapping in sorghum has revealed significant marker–trait associations for many agronomically beneficial traits. Wild relatives harbour genes for resistance to diseases and insect pests. Resistance to pod borer in chickpea and pigeonpea and resistance to rust and late leaf spot in groundnut have been successfully introgressed into a cultivated genetic background. Synthetics in groundnut are available to broaden the cultigen's gene pool. ICRISAT has notified the release of 266 varieties/cultivars, germplasm, and elite genetic stocks with unique traits, with some having a significant impact on breeding programs. Seventy-five germplasm lines have been directly released for cultivation in 39 countries.
 
Publisher CAB International Publishing
 
Date 2014
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/8519/1/PGRCU_12_S1_S155-S159_2014.pdf
Upadhyaya, H D and Dwivedi, S L and Sharma, S and Lalitha, N and Singh, S and Varshney, R K and Gowda, C L L (2014) Enhancement of the use and impact of germplasm in crop improvement. Plant Genetic Resources: Characterization and Utilization, 12 (S1). S155-S159. ISSN 1479-2621