Identifying cassava genotypes resistant to the African Cassava Whitefly, Bemisia tabaci (Gennadius)
The whitefly, Bemisia tabaci, is a major pest of cassava in Africa. Developing whitefly-resistant cassava can control both whiteflies and viral diseases. The main aim of this study was to identify cassava genotypes resistant to four B. tabaci populations, sub-Saharan Africa 1—subgroups 1, 2, and 3 (...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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MDPI
2024
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/148805 |
| _version_ | 1855532534631235584 |
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| author | Atim, Jackie Kalyebi, Andrew Bohorquez-Chaux, Adriana Becerra-Lopez-Lavalle, Luis Augusto Omongo, Christopher Abu Colvin, John Maruthi, M. N. |
| author_browse | Atim, Jackie Becerra-Lopez-Lavalle, Luis Augusto Bohorquez-Chaux, Adriana Colvin, John Kalyebi, Andrew Maruthi, M. N. Omongo, Christopher Abu |
| author_facet | Atim, Jackie Kalyebi, Andrew Bohorquez-Chaux, Adriana Becerra-Lopez-Lavalle, Luis Augusto Omongo, Christopher Abu Colvin, John Maruthi, M. N. |
| author_sort | Atim, Jackie |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The whitefly, Bemisia tabaci, is a major pest of cassava in Africa. Developing whitefly-resistant cassava can control both whiteflies and viral diseases. The main aim of this study was to identify cassava genotypes resistant to four B. tabaci populations, sub-Saharan Africa 1—subgroups 1, 2, and 3 (SSA1-SG1, SSA1-SG2, and SSA1-SG3) and sub-Saharan Africa 2 (SSA2) that colonize cassava, as well as understand the mechanisms of resistance. Utilizing the antixenosis and antibiosis techniques in the choice and no-choice tests, respectively, to screen for whitefly resistance, we tested 46 cassava genotypes. Of these, 11 (Njule Red, Nase 3, Nase 1, Kibandameno, Sagonja, Aladu, Kiroba, Magana, 72-TME-14, Sauti, and PER 415) exhibited antixenosis, as they were least preferred for oviposition by all four whiteflies population in choice tests. Ten genotypes exhibited antibiosis (nymph mortality) against SSA1-SG1 and SSA1-SG3 in no-choice tests, and these were, Pwani, Nase 14, Kalawe, Eyope, NGA11, CoI2246, Mkumbozi, KBH2002/0066, Yizaso, and PER 608. Eight genotypes—Tongolo, Mbundumali, Colicanana, Orera, Ofumbachai, Nam 130, Tajirika, and MECU72—exhibited both antixenosis and antibiosis mechanisms against SSA1-SG1 and SSA1-SG3. And these can be considered the best sources of resistance for the potential development of whitefly-resistant cassava varieties in African countries. |
| format | Journal Article |
| id | CGSpace148805 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | CGSpace1488052025-12-08T10:29:22Z Identifying cassava genotypes resistant to the African Cassava Whitefly, Bemisia tabaci (Gennadius) Atim, Jackie Kalyebi, Andrew Bohorquez-Chaux, Adriana Becerra-Lopez-Lavalle, Luis Augusto Omongo, Christopher Abu Colvin, John Maruthi, M. N. genotypes manihot esculenta plant breeding pest resistance plant pests bemisia tabaci The whitefly, Bemisia tabaci, is a major pest of cassava in Africa. Developing whitefly-resistant cassava can control both whiteflies and viral diseases. The main aim of this study was to identify cassava genotypes resistant to four B. tabaci populations, sub-Saharan Africa 1—subgroups 1, 2, and 3 (SSA1-SG1, SSA1-SG2, and SSA1-SG3) and sub-Saharan Africa 2 (SSA2) that colonize cassava, as well as understand the mechanisms of resistance. Utilizing the antixenosis and antibiosis techniques in the choice and no-choice tests, respectively, to screen for whitefly resistance, we tested 46 cassava genotypes. Of these, 11 (Njule Red, Nase 3, Nase 1, Kibandameno, Sagonja, Aladu, Kiroba, Magana, 72-TME-14, Sauti, and PER 415) exhibited antixenosis, as they were least preferred for oviposition by all four whiteflies population in choice tests. Ten genotypes exhibited antibiosis (nymph mortality) against SSA1-SG1 and SSA1-SG3 in no-choice tests, and these were, Pwani, Nase 14, Kalawe, Eyope, NGA11, CoI2246, Mkumbozi, KBH2002/0066, Yizaso, and PER 608. Eight genotypes—Tongolo, Mbundumali, Colicanana, Orera, Ofumbachai, Nam 130, Tajirika, and MECU72—exhibited both antixenosis and antibiosis mechanisms against SSA1-SG1 and SSA1-SG3. And these can be considered the best sources of resistance for the potential development of whitefly-resistant cassava varieties in African countries. 2024-06-27 2024-07-01T12:06:52Z 2024-07-01T12:06:52Z Journal Article https://hdl.handle.net/10568/148805 en Open Access application/pdf MDPI Atim, J.; Kalyebi, A.; Bohorquez-Chaux, A.; Becerra-Lopez-Lavalle, L.A.; Omongo, C.A.; Colvin, J.; Maruthi, M.N. (2024) Identifying cassava genotypes resistant to the African Cassava Whitefly, Bemisia tabaci (Gennadius). Agriculture 14(7): 1016. ISSN: 2077-0472 |
| spellingShingle | genotypes manihot esculenta plant breeding pest resistance plant pests bemisia tabaci Atim, Jackie Kalyebi, Andrew Bohorquez-Chaux, Adriana Becerra-Lopez-Lavalle, Luis Augusto Omongo, Christopher Abu Colvin, John Maruthi, M. N. Identifying cassava genotypes resistant to the African Cassava Whitefly, Bemisia tabaci (Gennadius) |
| title | Identifying cassava genotypes resistant to the African Cassava Whitefly, Bemisia tabaci (Gennadius) |
| title_full | Identifying cassava genotypes resistant to the African Cassava Whitefly, Bemisia tabaci (Gennadius) |
| title_fullStr | Identifying cassava genotypes resistant to the African Cassava Whitefly, Bemisia tabaci (Gennadius) |
| title_full_unstemmed | Identifying cassava genotypes resistant to the African Cassava Whitefly, Bemisia tabaci (Gennadius) |
| title_short | Identifying cassava genotypes resistant to the African Cassava Whitefly, Bemisia tabaci (Gennadius) |
| title_sort | identifying cassava genotypes resistant to the african cassava whitefly bemisia tabaci gennadius |
| topic | genotypes manihot esculenta plant breeding pest resistance plant pests bemisia tabaci |
| url | https://hdl.handle.net/10568/148805 |
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