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    Can parentage analysis facilitate breeding activities in root and tuber crops?

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    U18ArtNormanParentageInthomDev.pdf (878.5Kb)
    Date
    2018-06-27
    Author
    Norman, P.E.
    Asfaw, A.
    Tongoona, P.B.
    Danquah, A.
    Danquah, E.Y.
    Koeyer, D. de
    Asiedu, Robert
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Controlled pollination in root and tuber crops is challenging. Complex ploidy, cross-incompatibility, erratic flowering patterns, outcrossing, etc., limit the efficiency of breeding progress in these crops. Half-sib breeding that involves random pollination among parents is a viable method to harness genetic gain in outcrossing crops that are problematic for performing planned and controlled pollination. The authenticity of resulting progenies from the half-sib breeding is essential to monitor the selection gain in the breeding program. Parentage analysis facilitated by molecular markers is among the available handy tools for crop breeders to maximize genetic gain in a breeding program. It can help to resolve the identity of half-sib progenies and reconstruct the pedigree in the outcrossing crops. This paper reviews the potential benefits of parentage analysis in breeding selected outcrossing root and tuber crops. It assesses how paternity analysis facilitates breeding activities and the ways it improves genetic gain in the root and tuber breeding programs. Conscious use of complementary techniques in the root and tuber breeding programs can increase the selection gain by reducing the long breeding cycle and cost, as well as reliable exploitation of the heritable variation in the desired direction.
    http://dx.doi.org/10.3390/agriculture8070095
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/4078
    Non-IITA Authors ORCID
    Asrat Asfawhttps://orcid.org/0000-0002-4859-0631
    David De Koeyerhttps://orcid.org/0000-0001-8064-6538
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.3390/agriculture8070095
    Research Themes
    BIOTECH & PLANT BREEDING
    IITA Subjects
    Food Security; Plant Breeding
    Agrovoc Terms
    Dna; Pedigree; Root Crops; Breeding; Tubers
    Regions
    Africa; Southern Africa
    Countries
    Zimbabwe
    Journals
    Agriculture
    Collections
    • Journal and Journal Articles5078
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