A streak disease of pearl millet caused by a leafhopper-transmitted geminivirus

Briddon, R. W.; Lunness, Patricia; Bedford, Ian; Chamberlin, Leony; Mesfin, T.; Markham, P. G.

doi:10.1007/bf01878134

Cited by 13 publications

(3 citation statements)

References 26 publications

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“…Virtually every MSV isolate detected to date has been obtained from either cultivated or wild annual grass species. With the exception of SSV-Mil (Briddon et al, 1996), every non-MSV African streak virus currently characterized has been obtained from perennial grass species. It is possible that adaptation of MSV isolates to infecting annual grass species-which perhaps requires the virus to produce more striking symptoms more quickly, to guarantee leafhopper transmission-has predisposed them to greater virulence in maize than the other African streak virus species.…”

Section: Discussionmentioning

confidence: 99%

“…Maize streak virus (MSV) is the causal agent of maize streak disease, the most important disease of maize in Africa (Bosque-Perez, 2000). It is the type member of the genus Mastrevirus (family: Geminiviridae) and is relatively closely related to the less economically significant African and Australasian streak viruses Panicum streak virus (PanSV), Sugarcane streak virus (SSV), Sugarcane streak Ré union virus (SSRV), sugarcane streak Egypt virus (SSEV), and Digitaria streak virus (DSV) (Bigarré et al, 1999;Briddon et al, 1992;Briddon, 1996;Donson et al, 1987;Hughes et al, 1992). Together with other members of the genus these viruses have a single genomic component and an almost identical arrangement of genes (Rybicki et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

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Sequence Diversity and Virulence in Zea mays of Maize Streak Virus Isolates

et al. 2001

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Full genomic sequences were determined for 12 Maize streak virus (MSV) isolates obtained from Zea mays and wild grass species. These and 10 other publicly available full-length sequences were used to classify a total of 66 additional MSV isolates that had been characterized by PCR-restriction fragment length polymorphism and/or partial nucleotide sequence analysis. A description is given of the host and geographical distribution of the MSV strain and subtype groupings identified. The relationship between the genotypes of 21 fully sequenced virus isolates and their virulence in differentially MSV-resistant Z. mays genotypes was examined. Within the only MSV strain grouping that produced severe symptoms in maize, highly virulent and widely distributed genotypes were identified that are likely to pose the most serious threat to maize production in Africa. Evidence is presented that certain of the isolates investigated may be the products of either intra- or interspecific recombination.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sequence Diversity and Virulence in Zea mays of Maize Streak Virus Isolates

et al. 2001

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“…1992 ), SSRV ( Bigarré et al. 1999 ), and SSV ( Briddon et al. 1996 ) are all known to be transmitted by leafhopper species in the genus Cicadulina ( Shepherd et al.…”

Section: Resultsmentioning

confidence: 99%

Metagenomics reveals the structure of Mastrevirus–host interaction network within an agro-ecosystem

et al. 2023

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As highly pervasive parasites that sometimes cause disease, viruses are likely major components of all natural ecosystems. An important step towards both understanding the precise ecological roles of viruses and determining how natural communities of viral species are assembled and evolve, is obtaining full descriptions of viral diversity and distributions at ecosystem scales. Here we focused on obtaining such “community-scale” data for viruses in a single genus. We chose the genus Mastrevirus (family Geminiviridae), members of which have predominantly been found infecting uncultivated grasses (family Poaceae) throughout the tropical and sub-tropical regions of the world. We sampled over three years, 2,884 individual Poaceae plants belonging to 30 different species within a two hectares plot which included cultivated and uncultivated areas on the island of Reunion. Mastreviruses were found in ~8% of the samples of which 96% did not have any discernible disease symptoms. The multitude of host-virus associations that we uncovered reveals both the plant species that most commonly host mastreviruses and the mastrevirus species (such as Maize streak virus and Maize streak Reunion virus) that have especially large host ranges. Our findings are consistent with the hypothesis that perennial plant species capable of hosting years-long mixed mastrevirus infections likely play a disproportionately important role in the generation of inter-species and inter-strain mastrevirus recombinants.

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