Efficient use of crop germplasm resources: identifying useful germplasm for crop improvement through core and mini-core collections and molecular marker approaches

    Upadhyaya, H D and Gowda, C L L and Buhariwalla, H K and Crouch, J H (2006) Efficient use of crop germplasm resources: identifying useful germplasm for crop improvement through core and mini-core collections and molecular marker approaches. Plant Genetic Resources, 4 (1). pp. 25-35. ISSN 1479-2621

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    Abstract

    Conservation of crop germplasm diversity involves the establishment of in situ and ex situ genebanks. The major activities for ex situ genebanks include assembling, conserving, characterizing and providing easy access to germplasm for scientists. More than six million accessions are currently assembled in over 1300 genebanks worldwide. ICRISAT is one of the 15 CGIAR centres, with headquarters at Patancheru, India, and conserves genetic resources of sorghum, pearl millet, chickpea, pigeonpea, groundnut, and six small millets. The ICRISAT genebank holds 114,870 accessions from 130 countries, including both archival materials from various organizations throughout the world, and from fresh collections resulting from 213 missions in 62 countries. The ICRISAT genebank supplies annually over 40,000 germplasm samples to scientists worldwide. Sixty-six varieties selected from the basic germplasm have been released for cultivation in 44 countries, and ICRISAT has restored/repatriated crop germplasm to eight countries. The research focus is on germplasm diversity assessment, developing core and mini-core collections, and using a molecular characterization approach to both enhance the utilization of germplasm in research and improve the efficiency of germplasm management. Following these approaches, we have been able to identify a significant number of accessions with traits potentially relevant for crop improvement.

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Uncontrolled Keywords: chickpea; core collection; crop germplasm; groundnut; mini-core collection; molecular characterization; pearl millet; pigeonpea; sorghum
    Subjects: Others > Genetics and Genomics
    Depositing User: Users 6 not found.
    Date Deposited: 15 Oct 2011 05:45
    Last Modified: 15 Oct 2011 05:46
    URI: http://oar.icrisat.org/id/eprint/2577
    Official URL: http://dx.doi.org/10.1079/PGR2006107
    Projects: UNSPECIFIED
    Funders: UNSPECIFIED
    Acknowledgement: The authors gratefully acknowledge the assistance from Dr R. P. S. Pundir in developing this research paper.
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