Phylogenetic analysis of <Emphasis Type="Italic">Bemisia tabaci</Emphasis> (Hemiptera: Aleyrodidae) populations from cotton plants in Pakistan,China, and Egypt |
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Authors: | Muhammad Z Ahmed Shun-Xiang Ren Nasser S Mandour M N Maruthi Muhammad Naveed Bao-Li Qiu |
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Institution: | (1) Department of Entomology, South China Agricultural University, 510640 Guangzhou, China;(2) Department of Plant Protection, Suez Canal University, Ismailia, 41522, Egypt;(3) Plant, Animal and Human Health Group, Natural Resources Institute, University of Greenwich, Chatham Maritime, Kent, UK;(4) Central Cotton Research Institute, Multan, 60000, Pakistan |
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Abstract: | Bemisia tabaci is a species complex, of which the B and Q biotypes are globally distributed. B. tabaci feeds on more than 600 plant species including cotton, which is one of the main crops in Pakistan. In this study, the biotypes/haplotypes
of B. tabaci populations collected from cotton plants in Pakistan, China, and Egypt were identified, and their phylogenetic relationships
were investigated. None of the populations from Pakistan or Egypt belonged to the B or Q biotype: all 16 samples from Pakistan
belonged to haplotype “PCG-1” and it is a group of unresolved populations all from Pakistan, while all three populations from
Egypt belonged to unresolved haplotype “ECG.” The three populations from China belonged to the B biotype. Phylogenetic analysis
indicated that the PCG-1, ECG, and B biotypes clustered into different clades even though they share the same cotton plant
species as their host. The association between the outbreaks of cotton leaf curl disease and the occurrence of the PCG haplotype
of B. tabaci in Pakistan is discussed. |
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