Variation in Acquisition of Fiji Disease Virus by Perkinsiella saccharicida (Hemiptera: Delphacidae)

2008 ◽  
Vol 101 (1) ◽  
pp. 17-22 ◽  
Author(s):  
Andrew W. Ridley ◽  
K. Dhileepan ◽  
Gimme H. Walter ◽  
Karyn N. Johnson ◽  
Barry J. Croft
Keyword(s):  
Disease Virus ◽  
Fiji Disease Virus

Molecular Analysis of Fiji Disease Virus Segments 2, 4 and 7 Completes the Genome Sequence

Virus Genes ◽  
2006 ◽  
Vol 32 (1) ◽  
pp. 43-47 ◽  
Author(s):  
Robert M. Harding ◽  
Parichart Burns ◽  
Robert J. Geijskes ◽  
Richard M. McQualter ◽  
James L. Dale ◽  
...  
Keyword(s):  
Disease Virus ◽  
Molecular Analysis ◽  
Genome Sequence ◽  
Fiji Disease Virus

Improving Fiji disease resistance screening trials in sugarcane by considering virus transmission class and possible origin of Fiji disease virus

2004 ◽  
Vol 55 (6) ◽  
pp. 665 ◽  
Author(s):  
Grant R. Smith ◽  
Judith M. Candy
Keyword(s):  
Disease Virus ◽  
Disease Incidence ◽  
Virus Transmission ◽  
Rating System ◽  
Plant Host ◽  
Plant Infection ◽  
Disease Resistance Screening ◽  
Disease Rating ◽  
Fiji Disease Virus ◽  
Persistently Transmitted Viruses

Fiji disease virus is a propagative, persistently transmitted virus that multiplies in species of the delphacid planthopper genus Perkinsiella, and in sugarcane, the feeding host of the insect. Efforts to improve and modify the disease rating system for Fiji disease have largely focussed on the planthopper as individual vectors of the virus, rather than as a population of the principal, or at least an alternative, host of the virus. This perspective has resulted in key parameters of disease incidence resulting from plant infection by propagative, persistently transmitted viruses being largely overlooked or misunderstood during efforts to improve the rating system. These parameters include the relatively long acquisition, latency, and transmission times, the percentage of the population containing virus, or viruliferous, in the above periods, and the effects of population density and number of plants visited on disease incidence. Suggestions to modify trial design to improve virus transmission to the plant, based on the disease incidence parameters of the propagative, persistent transmission class, are presented and the practical difficulties of implementing these proposals are discussed. In the context of fully understanding the underlying biology of this virus–insect–plant system, the hypothesis that Fiji disease virus, as a plant-infecting member of the Reoviridae, is primarily an insect virus with a secondary plant host, and may have diverged from an insect-infecting virus relatively recently is proposed and compared with other members of the family Reoviridae.

Production and evaluation of transgenic sugarcane containing a Fiji disease virus (FDV) genome segment S9-derived synthetic resistance gene

2004 ◽  
Vol 55 (2) ◽  
pp. 139 ◽  
Author(s):  
R. B. McQualter ◽  
J. L. Dale ◽  
R. M. Harding ◽  
J. A. McMahon ◽  
G. R. Smith
Keyword(s):  
Resistance Gene ◽  
Disease Virus ◽  
Transgenic Line ◽  
Resistance Mechanism ◽  
Transcriptional Gene Silencing ◽  
Sugarcane Cultivar ◽  
Dna And Rna ◽  
Transgenic Sugarcane ◽  
Enhanced Resistance ◽  
Fiji Disease Virus

A transgenic line of the sugarcane cultivar Q124 with significantly enhanced resistance to Fiji disease was produced by microprojectile-mediated transformation with a transgene encoding a translatable version of Fiji disease virus (FDV) segment 9 ORF 1 under the control of the maize polyubiquitin promoter. Sixty-four transgenic lines were tested in glasshouse trials by caging the plants with viruliferous Perkinsiella saccharicida planthoppers. After 2 weeks, the planthoppers were removed and the plants monitored for symptoms. One transgenic line showed significantly enhanced resistance to Fiji disease compared with the Q124 parent and other lines showed varying levels of resistance. The molecular phenotypes of the transgenic plants at both the DNA and RNA levels were not entirely consistent with a resistance mechanism based on post-transcriptional gene silencing but were consistent with reports from other sugarcane-virus resistance systems. This is the first report of transgenic sugarcane containing an FDV-derived synthetic resistance gene showing resistance to FDV, although the mechanism of resistance has not yet been elucidated.

Fiji disease virus. [Distribution map].

2003 ◽  
Author(s):  
Keyword(s):  
Disease Virus ◽  
New Caledonia ◽  
Solomon Islands ◽  
Saccharum Officinarum ◽  
Peninsular Malaysia ◽  
Distribution Map ◽  
Irian Jaya ◽  
South Wales ◽  
Fiji Disease Virus ◽  
Virus Distribution

Abstract A new distribution map is provided for Fiji disease virus Viruses: Reoviridae: Fijivirus Hosts: Sugarcane (Saccharum officinarum) and other Saccharum spp. Information is given on the geographical distribution in ASIA, Indonesia, Irian Jaya, Sulawesi, Malaysia, Peninsular Malaysia, Philippines, Thailand, AFRICA, Madagascar, OCEANIA, Australia, New South Wales, Queensland, Fiji, New Caledonia, Papua New Guinea, Samoa, Solomon Islands, Tonga, Vanuatu.

Genetic variability of genome segments 3 and 9 of Fiji disease virus field isolates

2008 ◽  
Vol 153 (5) ◽  
pp. 839-848 ◽  
Author(s):  
Junxi Jiang ◽  
Andrew W. Ridley ◽  
Herman Tang ◽  
Barry J. Croft ◽  
Karyn N. Johnson
Keyword(s):  
Genetic Variability ◽  
Disease Virus ◽  
Field Isolates ◽  
Fiji Disease Virus
Sign in / Sign up

Export Citation Format

Share Document