Genetic Diversity of <i>Bemisia tabaci</i> (Gennadius) (Hemiptera: Aleyrodidae) Colonizing Sweet Potato and Cassava in South Sudan
<i>Bemisia tabaci</i> (Gennadius) is a polyphagous, highly destructive pest that is capable of vectoring viruses in most agricultural crops. Currently, information regarding the distribution and genetic diversity of <i>B. tabaci</i> in South Sudan is not available. The object...
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| Format: | Article |
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MDPI AG
2020-01-01
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| Series: | Insects |
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| Online Access: | https://www.mdpi.com/2075-4450/11/1/58 |
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| author | Beatrice C. Misaka Everlyne N. Wosula Philip W. Marchelo-d’Ragga Trine Hvoslef-Eide James P. Legg |
| author_facet | Beatrice C. Misaka Everlyne N. Wosula Philip W. Marchelo-d’Ragga Trine Hvoslef-Eide James P. Legg |
| author_sort | Beatrice C. Misaka |
| collection | DOAJ |
| description | <i>Bemisia tabaci</i> (Gennadius) is a polyphagous, highly destructive pest that is capable of vectoring viruses in most agricultural crops. Currently, information regarding the distribution and genetic diversity of <i>B. tabaci</i> in South Sudan is not available. The objectives of this study were to investigate the genetic variability of <i>B. tabaci</i> infesting sweet potato and cassava in South Sudan. Field surveys were conducted between August 2017 and July and August 2018 in 10 locations in Juba County, Central Equatoria State, South Sudan. The sequences of mitochondrial DNA cytochrome oxidase I (mtCOI) were used to determine the phylogenetic relationships between sampled <i>B. tabaci</i>. Six distinct genetic groups of <i>B. tabaci</i> were identified, including three non-cassava haplotypes (Mediterranean (MED), Indian Ocean (IO), and Uganda) and three cassava haplotypes (Sub-Saharan Africa 1 sub-group 1 (SSA1-SG1), SSA1-SG3, and SSA2). MED predominated on sweet potato and SSA2 on cassava in all of the sampled locations. The Uganda haplotype was also widespread, occurring in five of the sampled locations. This study provides important information on the diversity of <i>B. tabaci</i> species in South Sudan. A comprehensive assessment of the genetic diversity, geographical distribution, population dynamics, and host range of <i>B. tabaci</i> species in South Sudan is vital for its effective management. |
| first_indexed | 2024-04-13T16:53:46Z |
| format | Article |
| id | doaj.art-1a5574b0151f47fc815cf86519185831 |
| institution | Directory Open Access Journal |
| issn | 2075-4450 |
| language | English |
| last_indexed | 2024-04-13T16:53:46Z |
| publishDate | 2020-01-01 |
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| record_format | Article |
| series | Insects |
| spelling | doaj.art-1a5574b0151f47fc815cf865191858312022-12-22T02:38:53ZengMDPI AGInsects2075-44502020-01-011115810.3390/insects11010058insects11010058Genetic Diversity of <i>Bemisia tabaci</i> (Gennadius) (Hemiptera: Aleyrodidae) Colonizing Sweet Potato and Cassava in South SudanBeatrice C. Misaka0Everlyne N. Wosula1Philip W. Marchelo-d’Ragga2Trine Hvoslef-Eide3James P. Legg4Department of Agricultural Science, School of Natural Resources and Environmental Sciences, University of Juba, P.O. Box 82, Juba, South SudanInternational Institute of Tropical Agriculture, P.O. Box 34441, Dar es Salaam, TanzaniaDepartment of Agricultural Science, School of Natural Resources and Environmental Sciences, University of Juba, P.O. Box 82, Juba, South SudanDepartment of Plant Sciences, Norwegian University of Life Sciences (NMBU), P.O. Box 5003, 1432 Ås, NorwayInternational Institute of Tropical Agriculture, P.O. Box 34441, Dar es Salaam, Tanzania<i>Bemisia tabaci</i> (Gennadius) is a polyphagous, highly destructive pest that is capable of vectoring viruses in most agricultural crops. Currently, information regarding the distribution and genetic diversity of <i>B. tabaci</i> in South Sudan is not available. The objectives of this study were to investigate the genetic variability of <i>B. tabaci</i> infesting sweet potato and cassava in South Sudan. Field surveys were conducted between August 2017 and July and August 2018 in 10 locations in Juba County, Central Equatoria State, South Sudan. The sequences of mitochondrial DNA cytochrome oxidase I (mtCOI) were used to determine the phylogenetic relationships between sampled <i>B. tabaci</i>. Six distinct genetic groups of <i>B. tabaci</i> were identified, including three non-cassava haplotypes (Mediterranean (MED), Indian Ocean (IO), and Uganda) and three cassava haplotypes (Sub-Saharan Africa 1 sub-group 1 (SSA1-SG1), SSA1-SG3, and SSA2). MED predominated on sweet potato and SSA2 on cassava in all of the sampled locations. The Uganda haplotype was also widespread, occurring in five of the sampled locations. This study provides important information on the diversity of <i>B. tabaci</i> species in South Sudan. A comprehensive assessment of the genetic diversity, geographical distribution, population dynamics, and host range of <i>B. tabaci</i> species in South Sudan is vital for its effective management.https://www.mdpi.com/2075-4450/11/1/58<i>bemisia tabaci</i>genetic diversitydistributionhaplotype |
| spellingShingle | Beatrice C. Misaka Everlyne N. Wosula Philip W. Marchelo-d’Ragga Trine Hvoslef-Eide James P. Legg Genetic Diversity of <i>Bemisia tabaci</i> (Gennadius) (Hemiptera: Aleyrodidae) Colonizing Sweet Potato and Cassava in South Sudan Insects <i>bemisia tabaci</i> genetic diversity distribution haplotype |
| title | Genetic Diversity of <i>Bemisia tabaci</i> (Gennadius) (Hemiptera: Aleyrodidae) Colonizing Sweet Potato and Cassava in South Sudan |
| title_full | Genetic Diversity of <i>Bemisia tabaci</i> (Gennadius) (Hemiptera: Aleyrodidae) Colonizing Sweet Potato and Cassava in South Sudan |
| title_fullStr | Genetic Diversity of <i>Bemisia tabaci</i> (Gennadius) (Hemiptera: Aleyrodidae) Colonizing Sweet Potato and Cassava in South Sudan |
| title_full_unstemmed | Genetic Diversity of <i>Bemisia tabaci</i> (Gennadius) (Hemiptera: Aleyrodidae) Colonizing Sweet Potato and Cassava in South Sudan |
| title_short | Genetic Diversity of <i>Bemisia tabaci</i> (Gennadius) (Hemiptera: Aleyrodidae) Colonizing Sweet Potato and Cassava in South Sudan |
| title_sort | genetic diversity of i bemisia tabaci i gennadius hemiptera aleyrodidae colonizing sweet potato and cassava in south sudan |
| topic | <i>bemisia tabaci</i> genetic diversity distribution haplotype |
| url | https://www.mdpi.com/2075-4450/11/1/58 |
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