Distribution and molecular diversity of whitefly species colonizing cassava in Kenya
The whitefly, Bemisia tabaci (Gennadium, Hemiptera) has been reported to transmit viruses that cause cassava mosaic disease (CMD) and cassava brown streak disease (CBSD) in many parts of sub-Saharan Africa (SSA). Currently, there is limited information on the distribution, species and haplotype comp...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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MDPI
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/117864 |
| _version_ | 1855517387880660992 |
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| author | Munguti, F. Kilalo, D. Nyaboga, E. Wosula, E.N. Macharia, I. Mwango'mbe, A. |
| author_browse | Kilalo, D. Macharia, I. Munguti, F. Mwango'mbe, A. Nyaboga, E. Wosula, E.N. |
| author_facet | Munguti, F. Kilalo, D. Nyaboga, E. Wosula, E.N. Macharia, I. Mwango'mbe, A. |
| author_sort | Munguti, F. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The whitefly, Bemisia tabaci (Gennadium, Hemiptera) has been reported to transmit viruses that cause cassava mosaic disease (CMD) and cassava brown streak disease (CBSD) in many parts of sub-Saharan Africa (SSA). Currently, there is limited information on the distribution, species and haplotype composition of the whitefly populations colonizing cassava in Kenya. A study was conducted in the major cassava growing regions of Kenya to address this gap. Analyses of mitochondrial DNA cytochrome oxidase 1 (mtCO1) sequences revealed the presence of four distinct whitefly species: Bemisia tabaci, Bemisia afer, Aleurodicus dispersus and Paraleyrodes bondari in Kenya. The B. tabaci haplotypes were further resolved into SSA1, SSA2 and Indian Ocean (IO) putative species. The SSA1 population had three haplogroups of SSA1-SG1, SSA-SG2 and SSA1-SG3. Application of KASP genotyping grouped the Bemisia tabaci into two haplogroups namely sub-Saharan Africa East and Southern Africa (SSA-ESA) and sub-Saharan Africa East and Central Africa (SSA-ECA). The study presents the first report of P. bondari (Bondar’s nesting whitefly) on cassava in Kenya. Bemisia tabaci was widely distributed in all the major cassava growing regions in Kenya. The increased detection of different whitefly species on cassava and genetically diverse B. tabaci mitotypes indicates a significant influence on the dynamics of cassava virus epidemics in the field. The study highlights the need for continuous monitoring of invasive whitefly species population on cassava for timely application of management practices to reduce the impact of cassava viral diseases and prevent potential yield losses. |
| format | Journal Article |
| id | CGSpace117864 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | CGSpace1178642025-11-11T10:06:10Z Distribution and molecular diversity of whitefly species colonizing cassava in Kenya Munguti, F. Kilalo, D. Nyaboga, E. Wosula, E.N. Macharia, I. Mwango'mbe, A. bemisia tabaci genes paraleyrodes genotypes haplotypes east africa kenya The whitefly, Bemisia tabaci (Gennadium, Hemiptera) has been reported to transmit viruses that cause cassava mosaic disease (CMD) and cassava brown streak disease (CBSD) in many parts of sub-Saharan Africa (SSA). Currently, there is limited information on the distribution, species and haplotype composition of the whitefly populations colonizing cassava in Kenya. A study was conducted in the major cassava growing regions of Kenya to address this gap. Analyses of mitochondrial DNA cytochrome oxidase 1 (mtCO1) sequences revealed the presence of four distinct whitefly species: Bemisia tabaci, Bemisia afer, Aleurodicus dispersus and Paraleyrodes bondari in Kenya. The B. tabaci haplotypes were further resolved into SSA1, SSA2 and Indian Ocean (IO) putative species. The SSA1 population had three haplogroups of SSA1-SG1, SSA-SG2 and SSA1-SG3. Application of KASP genotyping grouped the Bemisia tabaci into two haplogroups namely sub-Saharan Africa East and Southern Africa (SSA-ESA) and sub-Saharan Africa East and Central Africa (SSA-ECA). The study presents the first report of P. bondari (Bondar’s nesting whitefly) on cassava in Kenya. Bemisia tabaci was widely distributed in all the major cassava growing regions in Kenya. The increased detection of different whitefly species on cassava and genetically diverse B. tabaci mitotypes indicates a significant influence on the dynamics of cassava virus epidemics in the field. The study highlights the need for continuous monitoring of invasive whitefly species population on cassava for timely application of management practices to reduce the impact of cassava viral diseases and prevent potential yield losses. 2021-09-27 2022-02-01T08:28:14Z 2022-02-01T08:28:14Z Journal Article https://hdl.handle.net/10568/117864 en Open Access application/pdf MDPI Munguti, F., Kilalo, D., Nyaboga, E., Wosula, E.N., Macharia, I. & Mwango’mbe, A. (2021). Distribution and molecular diversity of whitefly species colonizing cassava in Kenya. Insects, 12(10):875, 1-16. |
| spellingShingle | bemisia tabaci genes paraleyrodes genotypes haplotypes east africa kenya Munguti, F. Kilalo, D. Nyaboga, E. Wosula, E.N. Macharia, I. Mwango'mbe, A. Distribution and molecular diversity of whitefly species colonizing cassava in Kenya |
| title | Distribution and molecular diversity of whitefly species colonizing cassava in Kenya |
| title_full | Distribution and molecular diversity of whitefly species colonizing cassava in Kenya |
| title_fullStr | Distribution and molecular diversity of whitefly species colonizing cassava in Kenya |
| title_full_unstemmed | Distribution and molecular diversity of whitefly species colonizing cassava in Kenya |
| title_short | Distribution and molecular diversity of whitefly species colonizing cassava in Kenya |
| title_sort | distribution and molecular diversity of whitefly species colonizing cassava in kenya |
| topic | bemisia tabaci genes paraleyrodes genotypes haplotypes east africa kenya |
| url | https://hdl.handle.net/10568/117864 |
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