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Dissertations / Theses on the topic 'Cassava mosaic virus'

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1

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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2

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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3

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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4

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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5

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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6

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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7

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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8

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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9

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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10

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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11

Mabeer, Pravir. "Evaluation of tubers from cassava transgenic lines tolerant to African cassava mosaic virus." Thesis, 2020. https://hdl.handle.net/10539/31051.

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Dissertation submitted in fulfilment of the requirements for the degree Master of Science in Molecular and Cell Biology in the Faculty of Science, University of the Witwatersrand, 2020<br>Cassava (Manihot esculenta Crantz) is a crop plant that produces starchy tuberous roots. The cassava plant is resilient to abiotic stress and very efficient at producing carbohydrates, making it a valuable crop in the production of starch, for industrial uses. Some of the main causes of yield loss in cassava plants are viral diseases, such as cassava mosaic diseases (CMD), caused by
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12

Harmse, Johan. "Engineering virus resistant transgenic cassava: the design of long hairpin RNA constructs against South African cassava mosaic virus." Thesis, 2008. http://hdl.handle.net/10539/4685.

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ABSTRACT Cassava is currently the second most important source of carbohydrates on the African continent. In the last two decades, cassava crops have been severely affected by outbreaks of cassava mosaic disease (CMD). South African cassava mosaic virus (SACMV) has been associated with CMD outbreaks in the Mpumalanga province. Advances in post-transcriptional gene silencing (PTGS) technology have provided promising new strategies for the engineering of virus resistance in plants. Inverted repeat (IR) constructs are currently the most potent inducers of PTGS, however, these constructs a
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13

Pierce, Erica Joanna. "Transcriptome profiling in susceptible model and natural host systems in response to South African cassava mosaic virus." Thesis, 2014.

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Geminiviruses causes diseases to many staple food and cash crops of great economic importance worldwide. Currently eight species of Begomoviruses belonging to the Geminivirus family exist, of which South African cassava mosaic virus SACMV-[ZA:99] is a member, and is known to cause cassava mosaic disease (CMD). Cassava (Manihot esculenta, Crantz) is considered to be an important food crop consumed in many tropical, sub-tropical and African countries, and is increasingly becoming well-known for its ethanol production on a global a scale. Various strategies to control CMD are currently being impl
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14

Abraham, Natasha. "Characterisation of a subgenomic molecule associated with South African cassava mosaic virus." Thesis, 2013. http://hdl.handle.net/10539/12365.

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Cassava (Manihot esculenta) is a major food crop in sub-Saharan Africa, where cassava is mostly used as a subsistence crop. In southern Africa, cassava production is affected by cassava mosaic disease (CMD). The impact of CMD on cassava yield has a devastating impact on the economy in southern Africa as it is also an important industrial crop. South African cassava mosaic virus (SACMV) is a distinct geminivirus known to cause CMD in Southern Africa. SACMV is a bipartite virus where the two components DNA-A (2800bp) and DNA-B (2760bp) code for important proteins needed for viral replicati
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15

Allie, Farhahna. "Gene expression studies towards the elucidation of host responses to South African cassava mosaic virus." Thesis, 2014.

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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. Johannesburg, 2013.<br>Unable to load abstract.
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16

Osman, Rozida Haroon. "Screening of selected Cassava Cultivars for SACMV Resistance." Thesis, 2006. http://hdl.handle.net/10539/1558.

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Student Number : 0413249D - MSc research report - Faculty of Science<br>Cassava is one of the most important staple crops in the world and is consumed by over 700 million people around the globe and is a profitable product commercially due to the high starch content of its tubers. One of the future aims is to produce cassava that is high yielding, resistant to cassava mosaic geminiviruses (CMGs) and high in starch content. To be able to achieve commercially attractive cassava varieties, research need to be carried out to investigate the virus resistance status of different cassava cult
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17

Chikoti, Patrick Chiza. "Development of cassava (Manihot esculenta Crantz) cultivars for resistance to cassava mosaic disease in Zambia." Thesis, 2011. http://hdl.handle.net/10413/8402.

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Despite the increasing number of farmers growing cassava in Zambia, yield per hectare has remained low at 5.8 t ha-1. The major constraints contributing to low yields are pests and diseases of which cassava mosaic disease (CMD) caused by East Africa cassava mosaic virus (EACMV), Africa cassava mosaic virus (ACMV) and South Africa mosaic virus (SACMV) is the most important. Breeding of cassava is restricted by limited information on viruses and associated satellites, and farmer preferences. Most of the farmers cannot manage to institute control strategies that require buying of chemicals. The m
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18

Pierce, Erica Joanna. "Gene expression studies in Arabidopsis in response to South African Cassava Mosaic Virus infection utilizing microarrays." Thesis, 2006. http://hdl.handle.net/10539/1813.

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Student Number : 9610284H - MSc dissertation - School of Molecular and Cell Biology - Faculty of Science<br>Cassava Mosaic Disease is the most devastating disease affecting cassava (Manihot esculenta Crantz) crops worldwide. This disease is associated with eight species of geminiviruses, all belonging to the genus Begomovirus of the family Geminiviridae. In South Africa, in particular, CMD is caused by South African cassava mosaic virus (SACMV). Currently, there are no adequate methods for control of this disease as mechanisms within virus-host interactions are poorly understood. This b
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