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    Review of empirical and emerging breeding methods and tools for yam (Dioscorea spp.) improvement: status and prospects

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    Journal Article (787.5Kb)
    Date
    2020-06
    Author
    Darkwa, K.
    Olasanmi, B.
    Asiedu, R.
    Asfaw, A.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Yam (Dioscorea spp.) is an important tuber crop with tremendous potential as a functional food in the tropics and subtropics. However, the crop has not shown progressive productivity gain over decades due to various production constraints. This paper reviews the progress achieved in empirical breeding endeavours and the development, status and application of emerging breeding tools and technologies to translate genetic gains in yam improvement. Significant progress has been made in yam genetic improvement over the years which has led to the identification and development of several improved clones and sources of variability for various economically important traits. Substantial efforts have also been made to develop diverse molecular markers, transcriptome and metabolome profiles of crucial traits, trait mapping and generate reference genome sequences of the key species. However, there seems to be a slow translation of research improvements into widespread applications. These advances and the integration of empirical and emerging methods and technologies into the breeding process will enhance yam breeding efforts and ensure the quick delivery of improved varieties that possess superior agronomic and quality traits.
    https://dx.doi.org/10.1111/pbr.12783
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/6941
    IITA Authors ORCID
    Kwabena Darkwahttps://orcid.org/0000-0002-6877-8527
    Bunmi Olasanmihttps://orcid.org/0000-0002-8427-7992
    Robert Asieduhttps://orcid.org/0000-0001-8943-2376
    Asrat Asfawhttps://orcid.org/0000-0002-4859-0631
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1111/pbr.12783
    Research Themes
    Biotech and Plant Breeding
    IITA Subjects
    Agronomy; Genetic Improvement; Plant Breeding; Plant Genetic Resources; Plant Health; Plant Production; Yam
    Agrovoc Terms
    Breeding; Dioscorea; Quantitative Trait Loci; Yams; Agronomic Traits; Genetic Markers; Molecular Markets
    Regions
    Africa; West Africa
    Countries
    Benin (Dahomey); Cote d’Ivoire (Ivory Coast); Ghana; Nigeria; Togo
    Hubs
    Headquarters and Western Africa Hub
    Journals
    Plant Breeding
    Collections
    • Journal and Journal Articles4835
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