A5000763315- Plant Virus Research Studies
- Plant Disease Resistance and Genetics
- Plant and Fungal Interactions Research
- Pacific and Southeast Asian Studies
- Plant Pathogenic Bacteria Studies
- Agricultural pest management studies
- Cocoa and Sweet Potato Agronomy
- Animal Virus Infections Studies
- Bacteriophages and microbial interactions
- Agronomic Practices and Intercropping Systems
- Seed and Plant Biochemistry
- Insect Resistance and Genetics
- Plant and Fungal Species Descriptions
- Livestock and Poultry Management
- GABA and Rice Research
- HIV Research and Treatment
- Plant-Microbe Interactions and Immunity
- Isotope Analysis in Ecology
- Cassava research and cyanide
- Herpesvirus Infections and Treatments
- Plant Pathogens and Fungal Diseases
- Insect-Plant Interactions and Control
University of the South Pacific
2018-2023
Queensland University of Technology
2015-2022
The genus Badnavirus is characterized by members that are genetically and serologically heterogeneous which presents challenges for their detection characterization. presence of integrated badnavirus-like sequences in some host species further complicates using PCR-based protocols. To address these challenges, we have assessed optimized various RCA protocols including random-primed (RP-RCA), primer-spiked (primer-spiked RP-RCA), directed (D-RCA) specific-primed (SP-RCA). Using Dioscorea...
We have characterized the complete genome of a novel circular double-stranded DNA virus, tentatively named Dioscorea nummularia-associated virus (DNUaV), infecting nummularia originating from Samoa. The DNUaV comprised 8139 bp and contained four putative open reading frames (ORFs). ORFs 1 2 had no identifiable conserved domains, while ORF 3 motifs typical viruses within family Caulimoviridae including coat protein, movement aspartic protease, reverse transcriptase ribonuclease H. A...
Taro ( Colocasia esculenta ) and tannia Xanthosoma sp.) are important root crops cultivated mainly by small‐scale farmers in sub‐Saharan Africa the South Pacific. Viruses known to be one of most constraints production, with infections resulting severe yield reduction. In 2014 2015, surveys were conducted Ethiopia, Kenya, Tanzania Uganda determine identity viruses infecting taro East Africa. Screening 392 samples collected from region using degenerate badnavirus primers revealed an incidence...
Abstract Yam is an important food staple in many Pacific Island countries, but its production limited by several factors including virus infection. The presence of viruses also hinders the exploitation crop restricting international dissemination yam germplasm due to quarantine concerns. In this study, a total 224 accessions present collection at SPC‐CePaCT, Fiji, were tested for badnaviruses using combination rolling circle amplification (RCA) and sequencing. Of these, 35 positive either...
Taro (Colocasia esculenta) and tannia (Xanthosoma sp.) plants growing in 25 districts across Ethiopia, Kenya, Tanzania Uganda were surveyed for four RNA viruses. Leaf samples from 392 tested cucumber mosaic virus (CMV), dasheen (DsMV), taro vein chlorosis (TaVCV) Colocasia bobone disease-associated (CBDaV) by RT-PCR. No positive TaVCV or CBDaV, while CMV was only detected three with symptoms Uganda. DsMV 40 samples, including 36 out of 171 one 94 41 Tanzania, none the 86 Kenya any The...
Abstract The Pacific Islands (Melanesia, Micronesia, Polynesia) were the last region in world to be colonized by modern humans. In their migrations, they dispersed asexually propagated food plants that first domesticated Melanesia and exposed them further selection diverse insular environments. Later, staple crops introduced from South America. our search for research on genetic resources characterization breeding conducted between 1950 2022, we retrieved 338 references 13 crop species. All...
Abstract Sweet potato collusive virus (SPCV) is a member of the genus Cavemovirus , family Caulimoviridae for which only one full-length genome sequence has been reported. SPCV was first detected in Australia 2007 two sweet accessions using nitrocellulose membrane ELISA kit developed by International Potato Centre (CIP). Infected plants were also shown to contain isometric virions ~ 50 nm, typical members genera Caulimovirus Petuvirus and Soymovirus . We have now sequenced characterised...