Evolution of Polymorphs in Rhopalosiphum maidis (Hemiptera: Aphididae) in Response to Different Seasonal and Host Plant Conditions
Ibrahim, A., Rasmey, N., Abdelrahman, M., Hassan, M., Ali, A. (2023). Evolution of Polymorphs in Rhopalosiphum maidis (Hemiptera: Aphididae) in Response to Different Seasonal and Host Plant Conditions. EKB Journal Management System, 16(4), 53-62. doi: 10.21608/eajbsa.2023.326308
Ahmed M. A. Ibrahim; Nourelhoda M. Rasmey; Mohamed A. Abdelrahman; Mohamed H. A. Hassan; Ali M. Ali. "Evolution of Polymorphs in Rhopalosiphum maidis (Hemiptera: Aphididae) in Response to Different Seasonal and Host Plant Conditions". EKB Journal Management System, 16, 4, 2023, 53-62. doi: 10.21608/eajbsa.2023.326308
Ibrahim, A., Rasmey, N., Abdelrahman, M., Hassan, M., Ali, A. (2023). 'Evolution of Polymorphs in Rhopalosiphum maidis (Hemiptera: Aphididae) in Response to Different Seasonal and Host Plant Conditions', EKB Journal Management System, 16(4), pp. 53-62. doi: 10.21608/eajbsa.2023.326308
Ibrahim, A., Rasmey, N., Abdelrahman, M., Hassan, M., Ali, A. Evolution of Polymorphs in Rhopalosiphum maidis (Hemiptera: Aphididae) in Response to Different Seasonal and Host Plant Conditions. EKB Journal Management System, 2023; 16(4): 53-62. doi: 10.21608/eajbsa.2023.326308

Evolution of Polymorphs in Rhopalosiphum maidis (Hemiptera: Aphididae) in Response to Different Seasonal and Host Plant Conditions

Egyptian Academic Journal of Biological Sciences. A, Entomology
Volume 16, Issue 4, December 2023, Page 53-62  XML PDF (498.06 K)
Document Type: Original Article
DOI: 10.21608/eajbsa.2023.326308
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Authors
Ahmed M. A. Ibrahim1; Nourelhoda M. Rasmey2; Mohamed A. Abdelrahman2; Mohamed H. A. Hassan3; Ali M. Ali1
1Department of Zoology and Entomology, Faculty of Science, Assiut University, Assiut 71516, Egypt.
2Agricultural Research Center, Dokki, Giza, Egypt.
3Department of Plant Pathology, Faculty of Agriculture, Assiut University, Assiut 71516, Egypt.
Abstract
The aphid Rhopalosiphum maidis is a serious pest against cereal plants. In Egypt, it causes serious damage to many cereal plants. The principal idea of this study was achieved based on the observation of various seasonal invasion rates of this pest on different host plants suggesting climatic adaptation by R. maidis polymorphs. The invasion rates on winter plants were higher than those of summer. Morphologically, all collections were belonging to R. maidis. The authors assumed that different biotypes of R. maidis are present in the studied area. To address this hypothesis, the mitochondrial cytochrome oxidase I (COI) gene was amplified in aphids collected from wheat, barley, sorghum and maize in Assiut, Egypt. Polymerase chain reactions (PCR) identified 687 bps products corresponding to a partial sequence of (COI). Multiple sequence alignment of the sequenced products revealed that at least five haplotypes are present on the tested plants. Phylogenetic analysis using the neighbor-joining method identified five clades that represent different biotypes. The identified clades contained mixtures between summer and winter R. maidis collections suggesting that different biotypes are present in mixtures on the same plant. Our findings showed that R. maidis develops different polymorphs on various host plants at different climatic conditions.
Keywords
Rhopalosiphum maidis; Cytochrome oxidase; Phylogeny; Biotypes; Aphids
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