Academic literature on the topic 'Cassava mosaic virus'

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Journal articles on the topic "Cassava mosaic virus"

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RAJU, J., P. R. Thimmegowda, C. Elangovan, Sunita Pandey, and J. P. Singh. "Occurrence, Characterization and management of Sri Lankan Cassava Mosaic Virus (SLCMV) in cassava growing Namakkal district of Tamil Nadu, India." JOURNAL OF ECO-FRIENDLY AGRICULTURE 18, no. 2 (2023): 377–81. http://dx.doi.org/10.48165/jefa.2023.18.02.29.

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Cassava mosaic disease caused by begomoviruses of Geminiviridae family is one of the major constraints for the Cassava production in many Cassava growing states of India. The disease is known to be transmitted by whiteflies Bemisia tabaci and spread though the infected Cassava planting material. In India the Cassava mosaic disease (CMD) is caused by both Indian cassava mosaic virus (ICMV) and Sri Lankan cassava mosaic virus (SLCMV). However, Sri Lankan cassava mosaic virus was the most predominant virus species in the study area. To assess the severity of CMD, a survey was conducted during 202
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Sserubombwe, W. S., R. W. Briddon, Y. K. Baguma, et al. "Diversity of begomoviruses associated with mosaic disease of cultivated cassava (Manihot esculenta Crantz) and its wild relative (Manihot glaziovii Müll. Arg.) in Uganda." Journal of General Virology 89, no. 7 (2008): 1759–69. http://dx.doi.org/10.1099/vir.0.83637-0.

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Cassava (Manihot esculenta) growing in Uganda during 2001–2002 has been screened for the presence of begomoviruses using PCR-RFLP, cloning full-length genomic components and nucleotide sequence analysis. In contrast with a recent survey in neighbouring Kenya, which identified three distinct strains of East African cassava mosaic virus (EACMV, EACMV-UG and EACMV-KE2) as well as East African cassava mosaic Zanzibar virus and the new species East African cassava mosaic Kenya virus, only EACMV-UG and, to a lesser extent, African cassava mosaic virus (ACMV) were found associated with cassava in Uga
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Shirima, Rudolph Rufini, Everlyne Nafula Wosula, Abdou Azali Hamza, et al. "Epidemiological Analysis of Cassava Mosaic and Brown Streak Diseases, and Bemisia tabaci in the Comoros Islands." Viruses 14, no. 10 (2022): 2165. http://dx.doi.org/10.3390/v14102165.

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A comprehensive assessment of cassava brown streak disease (CBSD) and cassava mosaic disease (CMD) was carried out in Comoros where cassava yield (5.7 t/ha) is significantly below the African average (8.6 t/ha) largely due to virus diseases. Observations from 66 sites across the Comoros Islands of Mwali, Ngazidja, and Ndzwani revealed that 83.3% of cassava fields had foliar symptoms of CBSD compared with 95.5% for CMD. Molecular diagnostics confirmed the presence of both cassava brown streak ipomoviruses (CBSIs) and cassava mosaic begomoviruses (CMBs). Although real-time RT-PCR only detected t
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Mulenga, Rabson M., James P. Legg, Joseph Ndunguru, et al. "Survey, Molecular Detection, and Characterization of Geminiviruses Associated with Cassava Mosaic Disease in Zambia." Plant Disease 100, no. 7 (2016): 1379–87. http://dx.doi.org/10.1094/pdis-10-15-1170-re.

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A survey was conducted from April to May 2014 in 214 farmers’ fields located across six major cassava-producing provinces (Western, Northwestern, Northern, Luapula, Lusaka, and Eastern) of Zambia to determine the status of cassava mosaic disease (CMD) and the species diversity of associated cassava mosaic geminiviruses (CMG). Mean CMD incidence varied across all six provinces but was greatest in Lusaka Province (81%) and least in Northern Province (44%). Mean CMD severity varied slightly between provinces, ranging from 2.78 in Eastern Province to 3.00 in Northwestern Province. Polymerase chain
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Ogbe, F. O., G. Thottappilly, A. G. O. Dixon, G. I. Atiri, and H. D. Mignouna. "Variants of East African cassava mosaic virus and Its Distribution in Double Infections with African cassava mosaic virus in Nigeria." Plant Disease 87, no. 3 (2003): 229–32. http://dx.doi.org/10.1094/pdis.2003.87.3.229.

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In a survey for cassava mosaic begomoviruses conducted in 1997 and 1998 in Nigeria, East African cassava mosaic virus (EACMV) was detected by the polymerase chain reaction together with African cassava mosaic virus (ACMV) in 27 out of 290 cassava leaf samples of infected plants from 254 farmers' fields in five agroecological zones. One plant was infected with EACMV only. Five variant isolates of EACMV were observed based on their reactions to primers that could detect Cameroonian and East African strains of EACMV. Isolates of variants 1 and 3 occurred mostly in the derived or coastal and south
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Ogbe, F. O., A. G. O. Dixon, J. d'A Hughes, O. J. Alabi, and R. Okechukwu. "Status of Cassava Begomoviruses and Their New Natural Hosts in Nigeria." Plant Disease 90, no. 5 (2006): 548–53. http://dx.doi.org/10.1094/pd-90-0548.

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A diagnostic survey was conducted in 2002-03 to determine the status of cassava mosaic begomoviruses in Nigeria and to ascertain if the virulent Ugandan variant of East African cassava mosaic virus (EACMV-Ug2) was present. Of the 418 farms visited, 48% had cassava with moderately severe or severe symptoms, whereas 52% had cassava with mild symptoms. These distributions were at random. Of the 1,397 cassava leaf samples examined, 1,106 had symptoms. In polymerase chain reaction tests, 74.1% of the symptom-bearing samples tested positive for African cassava mosaic virus (ACMV) alone, 0.3% for EAC
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Bull, Simon E., Rob W. Briddon, William S. Sserubombwe, Kahiu Ngugi, Peter G. Markham, and John Stanley. "Genetic diversity and phylogeography of cassava mosaic viruses in Kenya." Journal of General Virology 87, no. 10 (2006): 3053–65. http://dx.doi.org/10.1099/vir.0.82013-0.

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Cassava is a major factor in food security across sub-Saharan Africa. However, the crop is susceptible to losses due to biotic stresses, in particular to viruses of the genus Begomovirus (family Geminiviridae) that cause cassava mosaic disease (CMD). During the 1990s, an epidemic of CMD severely hindered cassava production across eastern and central Africa. A significant influence on the appearance of virus epidemics is virus diversity. Here, a survey of the genetic diversity of CMD-associated begomoviruses across the major cassava-growing areas of Kenya is described. Because an initial PCR-re
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Vanitharani, Ramachandran, Padmanabhan Chellappan, Justin S. Pita, and Claude M. Fauquet. "Differential Roles of AC2 and AC4 of Cassava Geminiviruses in Mediating Synergism and Suppression of Posttranscriptional Gene Silencing." Journal of Virology 78, no. 17 (2004): 9487–98. http://dx.doi.org/10.1128/jvi.78.17.9487-9498.2004.

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ABSTRACT Posttranscriptional gene silencing (PTGS) in plants is a natural defense mechanism against virus infection. In mixed infections, virus synergism is proposed to result from suppression of the host defense mechanism by the viruses. Synergistic severe mosaic disease caused by simultaneous infection with isolates of the Cameroon strain of African cassava mosaic virus (ACMV-[CM]) and East African cassava mosaic Cameroon virus (EACMCV) in cassava and tobacco is characterized by a dramatic increase in symptom severity and a severalfold increase in viral-DNA accumulation by both viruses compa
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Bull, Simon E., Rob W. Briddon, William S. Sserubombwe, Kahiu Ngugi, Peter G. Markham, and John Stanley. "Infectivity, pseudorecombination and mutagenesis of Kenyan cassava mosaic begomoviruses." Journal of General Virology 88, no. 5 (2007): 1624–33. http://dx.doi.org/10.1099/vir.0.82662-0.

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Cloned DNA-A and DNA-B components of Kenyan isolates of East African cassava mosaic virus (EACMV, EACMV-UG and EACMV-KE2), East African cassava mosaic Kenya virus (EACMKV) and East African cassava mosaic Zanzibar virus (EACMZV) are shown to be infectious in cassava. EACMV and EACMKV genomic components have the same iteron sequence (GGGGG) and can form viable pseudorecombinants, while EACMZV components have a different sequence (GGAGA) and are incompatible with EACMV and EACMKV. Mutagenesis of EACMZV has demonstrated that open reading frames (ORFs) AV1 (encoding the coat protein), AV2 and AC4 a
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Efekemo, Oghenevwairhe P., Olabode A. Onile-ere, Isaac O. Abegunde, et al. "Molecular Diversity and Distribution of Whiteflies (Bemisia tabaci) in Cassava Fields Across South West and North Central, Nigeria." Insects 15, no. 11 (2024): 906. http://dx.doi.org/10.3390/insects15110906.

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Whitefly Bemisia tabaci (Gennadium, Hemiptera) causes severe damage to cassava plants through excessive feeding on leaves and transmitting viruses, such as African cassava mosaic virus (ACMV), East African cassava mosaic virus (EACMV), and ipomoviruses that cause cassava brown streak disease. Currently, little is known about the molecular diversity and distribution of whitefly species in the major cassava-growing zones of Nigeria. This study aimed to address the knowledge gap by assessing the genetic diversity, distribution, and associated cassava mosaic begomoviruses (CMBs) in whiteflies acro
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Dissertations / Theses on the topic "Cassava mosaic virus"

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Naseem, Saadia [Verfasser]. "Molecular studies on the interactions between African cassava mosaic virus (ACMV) and East African cassava mosaic virus (EACMV-UG) infecting cassava (Manihot esculenta Crantz) / Saadia Naseem." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover, 2011. http://d-nb.info/1012624684/34.

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Ndunguru, Joseph. "Molecular characterization of cassava mosaic geminiviruses in Tanzania." Thesis, University of Pretoria, 2005. http://hdl.handle.net/2263/30648.

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Cassava (Manihot esculenta Crantz) is a basic staple food crop in Tanzania. Cassava mosaic disease (CMD) caused by cassava mosaic geminiviruses (CMGs) constitutes a major limiting factor to cassava production in the country. This study was undertaken to characterize the CMGs occurring in Tanzania using molecular techniques and to map their geographical distribution to generate information on which the formulation of control measures can be based. Using Polymerase Chain Reaction (PCR) and Restriction Fragment Length Polymorphism (RFLP) for analysis of CMGs DNA-A genomes, different CMGs were fou
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Ward, Andrew. "Studies on transcription and gene expression in African cassava mosaic virus." Thesis, University of East Anglia, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329413.

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Haley, Ann. "Characterisation of the movement proteins of two plant viruses." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308317.

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Frey, Petra Maria. "A study of African cassava mosaic virus gene expression for the development of virus resistance /." [S.l.] : [s.n.], 2000. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13557.

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De, Marchi Bruno Rossitto [UNESP]. "Análise de transcriptomas de mosca-branca (Bemisia tabaci) e diversidade genética em cloroplasto de mandiocas (Manihot esculenta) infectadas com vírus." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/154822.

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Submitted by Bruno Rossitto de Marchi (bruno_dmarchi@hotmail.com) on 2018-08-08T18:14:08Z No. of bitstreams: 1 Bruno De Marchi Tese Definitivo.pdf: 5408910 bytes, checksum: 6c7b13538e592fdcfc85ae1e3eb12212 (MD5)<br>Approved for entry into archive by Maria Lucia Martins Frederico null (mlucia@fca.unesp.br) on 2018-08-08T18:50:48Z (GMT) No. of bitstreams: 1 de marchi_ br_dr_botfca.pdf: 5386545 bytes, checksum: 8a0580cd031695c504bc6270ee8317c9 (MD5)<br>Made available in DSpace on 2018-08-08T18:50:48Z (GMT). No. of bitstreams: 1 de marchi_ br_dr_botfca.pdf: 5386545 bytes, checksum: 8a0580cd03169
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VERDAGUER, BERTRAND. "Isolement et caracterisation dans des plantes transgeniques du promoteur du virus de la mosaique des nervures du manioc (ou cassava vein mosaic virus, csvmv)." Toulouse 3, 1997. http://www.theses.fr/1997TOU30216.

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Le virus de la mosaique des nervures du manioc (csvmv) est un virus a adn double brin qui infecte le manioc. Une sequence promotrice s'etendant de la position nucleotidique -443 a +72 a ete isole du genome du csvmv et clonee dans une construction chimerique contenant le gene uida. L'etude de l'expression du gene rapporteur dans des plantes transgeniques de tabac et de riz a montre que le promoteur du csvmv permet une expression forte du transgene dans tous les organes et dans plusieurs types cellulaires. Les regions de plus forte expression sont les elements vasculaires, les cellules du mesoph
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Balyejusa, Kizito Elizabeth. "Genetic and root growth studies in cassava (Manihot esculenta Crantz) : implications for breeding /." Uppsala : Dept. of Plant Biology and Forest Genetics, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/200682.pdf.

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NICOLINI, Cícero. "Análise molecular da adaptabilidade hospedeira de Cowpea aphid-borne mosaic virus e caracterização de um novo tymovírus infectando Cassia hoffmannseggii." Universidade Federal Rural de Pernambuco, 2011. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6493.

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Submitted by (lucia.rodrigues@ufrpe.br) on 2017-02-21T13:55:26Z No. of bitstreams: 1 Cicero Nicolini.pdf: 1169299 bytes, checksum: e932282294084c1947939ed928971bcb (MD5)<br>Made available in DSpace on 2017-02-21T13:55:26Z (GMT). No. of bitstreams: 1 Cicero Nicolini.pdf: 1169299 bytes, checksum: e932282294084c1947939ed928971bcb (MD5) Previous issue date: 2011-09-01<br>Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq<br>Brazil is the world’s largest passion fruit producer. The sanitary problems, mainly diseases caused by viruses are among the limiting factors f
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Moralo, Maabo. "Evaluation of transgenic cassava expressing mismatch and non-mismatch hpRNA constructs derived from African cassava mosaic virus and South African cassava mosaic virus open reading frames." Thesis, 2015. http://hdl.handle.net/10539/19289.

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A thesis submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Doctor of Philosophy in the School of Molecular and Cell Biology. Johannesburg, 2015.<br>With rising global food prices, growing populations, climate change and future demand for tuber crops for feed and potential energy source, cassava is well positioned to meet the needs of many countries in the SADC region, including South Africa. However a major constraint to cassava cultivation is cassava infecting begomoviruses (CBVs), including African cassava
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Books on the topic "Cassava mosaic virus"

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Etessami, Pantea. Mutagenesis studies on the genome of cassava latent virus (African cassava mosaic virus). University of East Anglia, 1989.

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Ward, Andrew. Studies of transcription and gene expression in African cassava mosaic virus. University of EastAnglia, 1989.

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W, Otim-Nape G., and Natural Resources Institute, eds. The Current pandemic of cassava mosaic virus disease in East Africa and its control. Natural Resources Institute, 2000.

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Study of African Cassava Mosaic Virus Gene Expression for the Development of Virus Resistance. Independently Published, 2020.

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Frey, Petra Maria. A study of African cassava mosaic virus gene expression for the development of virus resistance. 2000.

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Cassava mosaic virus disease in Uganda: The current pandemic and approaches to control. Natural Resources Institute, 1997.

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Book chapters on the topic "Cassava mosaic virus"

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Seethapathy, Parthasarathy, T. K. S. Latha, Vaishnavi Warrier, and K. Sivagnanapazham. "African Cassava Mosaic Virus." In Compendium of Phytopathogenic Microbes in Agro-Ecology. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-81884-4_2.

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Zhang, Peng, Johannes Fütterer, Petra Frey, Ingo Potrykus, Johanna Puonti-Kaerlas, and Wilhelm Gruissem. "Engineering Virus-Induced African Cassava Mosaic Virus Resistance by Mimicking a Hypersensitive Reaction in Transgenic Cassava." In Plant Biotechnology 2002 and Beyond. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-2679-5_23.

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Palaniswami, M. S., and T. J. Henneberry. "Bemisia tabaci (Genn.): Biotypes and Cassava Mosaic Virus in India." In The Whitefly, Bemisia tabaci (Homoptera: Aleyrodidae) Interaction with Geminivirus-Infected Host Plants. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1524-0_7.

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Otim-Nape, G. W., and J. M. Thresh. "The current pandemic of cassava mosaic virus disease in Uganda." In The Epidemiology of Plant Diseases. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-3302-1_21.

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Thompson, Winston M. O. "Interaction of Bemisia tabaci with East African cassava mosaic virus-Infected Plants." In The Whitefly, Bemisia tabaci (Homoptera: Aleyrodidae) Interaction with Geminivirus-Infected Host Plants. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1524-0_6.

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Chapwanya, Michael, and Yves Dumont. "Application of Mathematical Epidemiology to Crop Vector-Borne Diseases: The Cassava Mosaic Virus Disease Case." In Infectious Diseases and Our Planet. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-50826-5_4.

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Kwame Torkpo, Stephen, and Emmanuel Amponsah. "Challenges of Cassava Mosaic Begomoviruses, Cassava Brown Streak Ipomoviruses and Satellites to Cassava Production." In Cassava - Recent Updates on Food, Feed, and Industry [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.110103.

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Cassava is an important food security and industrial crop. Its production is constrained by viral diseases such as cassava mosaic disease (CMD) and cassava brown streak disease (CBSD), caused by cassava mosaic begomoviruses (CMBs) and ipomoviruses, respectively. In recent years, CMBs have been associated with satellite DNAs. Food security status of cassava coupled with high demand for cassava as feed and industrial uses has been the driving force for scientists and the research community in Africa and beyond. In this review, cassava production, uses of cassava, production constraints, begomovi
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de Kochko, Alexandre. "PLANT PARARETROVIRUSES (CAULIMOVIRIDAE) | Cassava Vein Mosaic Virus." In Encyclopedia of Virology. Elsevier, 1999. http://dx.doi.org/10.1006/rwvi.1999.0329.

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Legg, J. P., B. Owor, P. Sseruwagi, and J. Ndunguru. "Cassava Mosaic Virus Disease in East and Central Africa: Epidemiology and Management of A Regional Pandemic." In Advances in Virus Research. Elsevier, 2006. http://dx.doi.org/10.1016/s0065-3527(06)67010-3.

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Kodjo, Kodjovi Atasse Dansou, Assion Setu Mivedor, Kossikouma Djodji Adjata, Jerome Duclercq, and Yawovi Mawuena Dieudonne Gumedzoe. "Identifying New Species of Cassava Mosaic Begomovirus and Ageratum Leaf Curl Cameroon Virus on Pepper (Capsicum annuum L.) in Togo." In Innovations in Biological Science Vol. 7. B P International, 2024. http://dx.doi.org/10.9734/bpi/ibs/v7/7571c.

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