scholarly journals Expression of the Rice Yellow Mottle Virus P1 Proteinin Vitroandin Vivoand Its Involvement in Virus Spread

Virology ◽  
1998 ◽  
Vol 244 (1) ◽  
pp. 79-86 ◽  
Author(s):  
Caroline Bonneau ◽  
Christophe Brugidou ◽  
Lili Chen ◽  
Roger N. Beachy ◽  
Claude Fauquet
Keyword(s):  
Mottle Virus ◽  
Rice Yellow Mottle Virus ◽  
Virus Spread ◽  
Yellow Mottle

scholarly journals Rice yellow mottle virus genus Sobemovirus: a continental problem in africa

2010 ◽  
Vol 40 (No. 1) ◽  
pp. 26-36 ◽  
Author(s):  
O.O. Banwo ◽  
M.D. Alegbejo ◽  
M.E. Abo
Keyword(s):  
Management Strategies ◽  
Central Africa ◽  
Mottle Virus ◽  
Future Research ◽  
Limiting Factor ◽  
Rice Yellow Mottle Virus ◽  
Virus Spread ◽  
Yield Losses ◽  
African Countries ◽  
Yellow Mottle

<I>Rice yellow mottle virus</I> genus <I>sobemovirus </I>(RYMV) was first reported in Kenya in 1966. The disease caused by this virus is fast becoming a major limiting factor in the rice production in Africa and neighbouring islands. It is known to occur in eastern, western and southern African countries and, since very recently, in Central Africa. It is transmitted by insect vectors such as <I>Chaectonema </I>spp., <I>Sesselia pusilla</I> Gerst. and <I>Trichispa sericea</I> Guerin (all <I>Coleoptera</I>) and also by mechanical means. About six strains of the virus now exist. Yield losses caused by the virus range from 20 to 100%. Integrated pest management has been suggested to minimise damage caused by this disease to rice. This paper reviews the characteristics of the virus, symptomatology, host range, distribution, strains, transmission, vector dynamics and virus spread, the economic importance, and management strategies. The need of future research of RYMV is also highlighted.

scholarly journals The rice yellow mottle virus P1 protein exhibits dual functions to suppress and activate gene silencing

2010 ◽  
Vol 61 (3) ◽  
pp. 371-382 ◽  
Author(s):  
Séverine Lacombe ◽  
Martine Bangratz ◽  
Florence Vignols ◽  
Christophe Brugidou
Keyword(s):  
Gene Silencing ◽  
Mottle Virus ◽  
Rice Yellow Mottle Virus ◽  
Yellow Mottle ◽  
Activate Gene ◽  
Dual Functions

Molecular epidemiology of the RNA satellite of Rice yellow mottle virus in Africa

2003 ◽  
Vol 148 (9) ◽  
pp. 1721-1733 ◽  
Author(s):  
A. Pinel ◽  
Z. Abubakar ◽  
O. Traor� ◽  
G. Konat� ◽  
D. Fargette
Keyword(s):  
Molecular Epidemiology ◽  
Mottle Virus ◽  
Rice Yellow Mottle Virus ◽  
Yellow Mottle

scholarly journals Synthesis of an infectious full-length cDNA clone of rice yellow mottle virus andmutagenesis of the coat protein

Virology ◽  
1995 ◽  
Vol 206 (1) ◽  
pp. 108-115 ◽  
Author(s):  
C. Brugidou ◽  
C. Holt ◽  
M. Ngon A Yassi ◽  
S. Zhang ◽  
R. Beachy ◽  
...  
Keyword(s):  
Coat Protein ◽  
Cdna Clone ◽  
Full Length ◽  
Mottle Virus ◽  
Rice Yellow Mottle Virus ◽  
Full Length Cdna ◽  
Yellow Mottle

scholarly journals The Genetic Basis of High Resistance to Rice Yellow Mottle Virus (RYMV) in Cultivars of Two Cultivated Rice Species

Plant Disease ◽  
1999 ◽  
Vol 83 (10) ◽  
pp. 931-935 ◽  
Author(s):  
M. N. Ndjiondjop ◽  
L. Albar ◽  
D. Fargette ◽  
C. Fauquet ◽  
A. Ghesquière
Keyword(s):  
Genetic Basis ◽  
Virus Isolate ◽  
Mottle Virus ◽  
F1 Hybrids ◽  
Enzyme Linked Immunosorbent Assay ◽  
Rice Yellow Mottle Virus ◽  
Recessive Resistance ◽  
Cultivated Rice ◽  
Recessive Resistance Gene ◽  
Yellow Mottle

Three cultivars of Oryza sativa (IR64, Azucena, and Gigante) and four cultivars of O. glaberrima (Tog5681, Tog5673, CG14, and SG329) were evaluated for their resistance to two isolates of rice yellow mottle virus (RYMV) by enzyme-linked immunosorbent assay (ELISA) and symptomatology. Cultivars Tog5681 and Gigante were highly resistant, and no symptoms were observed when either virus isolate was inoculated at 10 or 20 days postgermination and assayed by ELISA at 7, 14, 22, 35, 50, or 64 days postinoculation. Azucena showed a partial resistance, whereas the other cultivars were susceptible. Symptom appearance was associated with increase in ELISA absorbance in the systemically infected leaves. The best discrimination among the cultivars occurred when the plants were inoculated at 10 days postgermination. Crosses were made between the highly resistant (Gigante and Tog5681) and the susceptible (IR64) cultivars to determine the genetic basis of resistance to RYMV. Evaluation of F1 hybrids and interspecific progenies, as well as the segregation of resistance in F2 and F3 lines of the IR64 × Gigante cross, provided results consistent with the presence of a single recessive resistance gene common to Tog5681 and Gigante.

scholarly journals Full-Length Genome Sequences of Recombinant and Nonrecombinant Sympatric Strains of Rice yellow mottle virus from Western Kenya

2018 ◽  
Vol 6 (8) ◽  
Author(s):  
Antony Kigaru Adego ◽  
Nils Poulicard ◽  
Agnès Pinel-Galzi ◽  
Benard Mukoye ◽  
Denis Fargette ◽  
...  
Keyword(s):  
Full Length ◽  
Mottle Virus ◽  
Rice Yellow Mottle Virus ◽  
Genome Sequences ◽  
Western Kenya ◽  
Yellow Mottle ◽  
Full Length Genome

ABSTRACT Five isolates of Rice yellow mottle virus from western Kenya were fully sequenced. One isolate of strain S4lv had been collected in 1966. Two isolates belonged to the emerging strain S4ug recently described in Uganda. Two isolates collected in 2012 are putative recombinants between the S4lv and S4ug strains.

Rice Yellow Mottle Virus (Solemoviridae)

2020 ◽  
Author(s):  
Eugénie Hébrard ◽  
Nils Poulicard ◽  
Mbolarinosy Rakotomalala
Keyword(s):  
Mottle Virus ◽  
Rice Yellow Mottle Virus ◽  
Yellow Mottle

Reactions and Resistance Status of Differential Rice Genotypes to Rice Yellow Mottle Virus, Genus Sobemovirus in Cote d`Ivoire

2004 ◽  
Vol 3 (6) ◽  
pp. 718-723 ◽  
Author(s):  
A. Onasanya ◽  
Y. Sere . ◽  
F. Nwilene . ◽  
M.E. Abo . ◽  
K. Akator .
Keyword(s):  
Mottle Virus ◽  
Rice Yellow Mottle Virus ◽  
Yellow Mottle ◽  
Rice Genotypes
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