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    Musa germplasm A and B genomic composition differentially affects their susceptibility to banana bunchy top virus and its aphid vector, Pentalonia nigronervosa

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    Journal Article (1021.Kb)
    Date
    2022
    Author
    Ngatat, S.
    Hanna, R.
    Lienou, J.
    Ghogomu, R.
    Nguidang, S.P.K.
    Enoh, A.C.
    Ndemba, B.
    Korie, S.
    Fotso Kuate, A.
    Nanga, S.N.
    Fiaboe, K.
    Kumar, P.L.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Banana bunchy top disease (BBTD), caused by the banana bunchy top virus (BBTV, genus Babuvirus), is the most destructive viral disease of banana and plantain (Musa spp.). The virus is transmitted persistently by the banana aphid, Pentalonia nigronervosa Coquerel (Hemiptera: Aphididae). While research efforts have focused on screening Musa genotypes for BBTD resistance, comparatively little work has been carried out to identify resistance to banana aphids. This study assessed 44 Musa germplasm of different A and B genome composition for the performance of banana aphids under semicontrolled environmental screenhouse conditions and in a field trial established in a BBTD endemic location. In the screenhouse, the AA diploid Calcutta 4 had the lowest apterous aphid density per plant (9.7 ± 4.6) compared with AAB triploid Waema, which had the highest aphid densities (395.6 ± 20.8). In the field, the highest apterous aphid density per plant (29.2 ± 6.7) occurred on the AAB triploid Batard and the lowest (0.4 ± 0.2) on the AA diploid Pisang Tongat. The AA diploid Tapo was highly susceptible to BBTD (100% infection) compared with the genotypes Balonkawe (ABB), PITA 21 (AAB), Calcutta 4 (AA), and Balbisiana Los Banos (BB), which remained uninfected. The Musa genotypes with apparent resistance to BBTD and least susceptibility to aphid population growth provide options for considering aphid and BBTD resistance in banana and plantain breeding programs.
    https://dx.doi.org/10.3390/plants11091206
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7465
    IITA Authors ORCID
    Rachid Hannahttps://orcid.org/0000-0002-5715-0144
    Enoh Aime Cheohhttps://orcid.org/0000-0002-9986-5156
    Samuel Nangahttps://orcid.org/0000-0003-4281-8284
    Fotso Kuate, A.https://orcid.org/0000-0002-5247-7519
    P. Lava Kumarhttps://orcid.org/0000-0003-4388-6510
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.3390/plants11091206
    Research Themes
    Natural Resource Management; Plant Production and Health
    IITA Subjects
    Agronomy; Banana; Disease Control; Food Security; Plant Breeding; Plant Diseases; Plant Health; Plant Production; Plantain
    Agrovoc Terms
    Bananas; Plantains; Genomes; Host Plant Resistance; Viruses; Transmissions; Aphididae; Vectors; Africa
    Regions
    Africa; Central Africa
    Countries
    Cameroon
    Hubs
    Central Africa Hub; Headquarters and Western Africa Hub
    Journals
    Plants
    Collections
    • Journal and Journal Articles4501
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