Crop Wild Relatives of Sorghum: A Novel Source of Genetic Variation for Crop Improvement

    Vetriventhan, M and Jagadeesh, K and Baraskar, S and Dagunapur, N R and Srinivas, R and Anilkumar, K and Singh, K (2024) Crop Wild Relatives of Sorghum: A Novel Source of Genetic Variation for Crop Improvement. In: Omics and Biotechnological Approaches for Product Profile-Driven Sorghum Improvement. Springer, Singapore, pp. 145-164. ISBN 978-981-97-4346-9

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    Abstract

    Sorghum is one of the most important dryland crops with greater prominence in terms of food and fodder, contribution to global food security and nutrition. Sorghum production is constrained by several biotic and abiotic stresses; on the other hand, the repeated use of identical sources in breeding program has resulted in narrow genetic base of crop cultivars. This enhanced the need to broaden the genetic base of crop cultivars by using diverse landraces and crop wild relatives. Currently, 259,595 accessions of sorghum spp. including 2465 wild and weedy relatives are being conserved ex situ in the genebanks across the globe. The exploitation of wild species harboring several desirable alleles for various biotic and abiotic stress tolerance, productivity, and nutritional traits can aid in diversifying the trait sources. Gap analysis of the sorghum wild relatives indicated significant taxonomical and geographical gaps in the global collection, requiring immediate efforts to enrich the gene pool. Using novel breeding strategies including the application of genomics approaches like genome sequencing, trait mapping and pangenome development provides more comprehensive insights into trait-specific sources. This can aid in identifying and transferring novel traits from wild relatives and can lead to sustainable production levels in sorghum.

    Item Type: Book Section
    Divisions: Genebank
    CRP: UNSPECIFIED
    Uncontrolled Keywords: Crop Improvement, Sorghum, Genetic Variation
    Subjects: Others > Crop Improvement
    Mandate crops > Sorghum
    Others > Gene Bank
    Depositing User: Mr Nagaraju T
    Date Deposited: 27 Nov 2024 04:04
    Last Modified: 27 Nov 2024 04:04
    URI: http://oar.icrisat.org/id/eprint/12872
    Acknowledgement: UNSPECIFIED
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