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    Banana seed genetic resources for food security: status, constraints, and future priorities

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    Journal Article (1.918Mb)
    Date
    2021
    Author
    Kallow, S.
    Mertens, A.
    Janssens, S.
    Vandelook, F.
    Dickie, J.
    Swennen, R.
    Panis, B.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Storing seed collections of crop wild relatives, wild plant taxa genetically related to crops, is an essential component in global food security. Seed banking protects genetic resources from degradation and extinction and provides material for use by breeders. Despite being among the most important crops in the world, banana and plantain crop wild relatives are largely under-represented in genebanks. Nevertheless, banana crop wild relative seed collections are in fact held in different countries, but these have not previously been part of reporting or analysis. To fill this gap, we firstly collated banana seed accession data from 13 institutions in 10 countries. These included 537 accessions containing an estimated 430,000 seeds of 56 species. We reviewed their taxonomic coverage and seed storage conditions including viability estimates. We found that seed accessions have low viability (25% mean) representing problems in seed storage and processing. Secondly, we surveyed 22 institutions involved in banana genetic resource conservation regarding the key constraints and knowledge gaps that institutions face related to banana seed conservation. Major constraints were identified including finding suitable material and populations to collect seeds from, lack of knowledge regarding optimal storage conditions and germination conditions. Thirdly, we carried out a conservation prioritization and gap analysis of Musaceae taxa, using established methods, to index representativeness. Overall, our conservation assessment showed that despite this extended data set banana crop wild relatives are inadequately conserved, with 51% of taxa not represented in seed collections at all; the average conservation assessment showing high priority for conservation according to the index. Finally, we provide recommendations for future collecting, research, and management, to conserve banana and plantain crop wild relatives in seed banks for future generations.
    https://dx.doi.org/10.1002/fes3.345
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7338
    IITA Authors ORCID
    Rony Swennenhttps://orcid.org/0000-0002-5258-9043
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1002/fes3.345
    Research Themes
    Biotech and Plant Breeding
    IITA Subjects
    Agronomy; Banana; Food Security; Genetic Improvement; Plant Breeding; Plant Genetic Resources; Plant Production
    Agrovoc Terms
    Bananas; Crops; Conservation Agriculture; Plant Genetic Resources; Gene Banks
    Hubs
    Eastern Africa Hub
    Journals
    Food and Energy Security
    Collections
    • Journal and Journal Articles4835
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