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Sapakhova Z, Raissova N, Daurov D, Zhapar K, Daurova A, Zhigailov A, Zhambakin K, Shamekova M. Sweet Potato as a Key Crop for Food Security under the Conditions of Global Climate Change: A Review. PLANTS (BASEL, SWITZERLAND) 2023; 12:2516. [PMID: 37447081 DOI: 10.3390/plants12132516] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023]
Abstract
Sweet potato is one of the most economically important crops for addressing global food security and climate change issues, especially under conditions of extensive agriculture, such as those found in developing countries. However, osmotic stress negatively impacts the agronomic and economic productivity of sweet potato cultivation by inducing several morphological, physiological, and biochemical changes. Plants employ many signaling pathways to respond to water stress by modifying their growth patterns, activating antioxidants, accumulating suitable solutes and chaperones, and making stress proteins. These physiological, metabolic, and genetic modifications can be employed as the best indicators for choosing drought-tolerant genotypes. The main objective of sweet potato breeding in many regions of the world, especially those affected by drought, is to obtain varieties that combine drought tolerance with high yields. In this regard, the study of the physiological and biochemical features of certain varieties is important for the implementation of drought resistance measures. Adapted genotypes can be selected and improved for particular growing conditions by using suitable tools and drought tolerance-related selection criteria. By regulating genetics in this way, the creation of drought-resistant varieties may become cost-effective for smallholder farmers. This review focuses on the drought tolerance mechanisms of sweet potato, the effects of drought stress on its productivity, its crop management strategies for drought mitigation, traditional and molecular sweet potato breeding methods for drought tolerance, and the use of biotechnological methods to increase the tolerance of sweet potato to drought.
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Affiliation(s)
- Zagipa Sapakhova
- Institute of Plant Biology and Biotechnology, Almaty 050040, Kazakhstan
| | - Nurgul Raissova
- Institute of Plant Biology and Biotechnology, Almaty 050040, Kazakhstan
| | - Dias Daurov
- Institute of Plant Biology and Biotechnology, Almaty 050040, Kazakhstan
| | - Kuanysh Zhapar
- Institute of Plant Biology and Biotechnology, Almaty 050040, Kazakhstan
| | - Ainash Daurova
- Institute of Plant Biology and Biotechnology, Almaty 050040, Kazakhstan
| | - Andrey Zhigailov
- M. Aitkhozhin Institute of Molecular Biology and Biochemistry, Almaty 050012, Kazakhstan
| | - Kabyl Zhambakin
- Institute of Plant Biology and Biotechnology, Almaty 050040, Kazakhstan
| | - Malika Shamekova
- Institute of Plant Biology and Biotechnology, Almaty 050040, Kazakhstan
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Lan P, Li F, Abad J, Pu L, Li R. Simultaneous detection and differentiation of three Potyviridae viruses in sweet potato by a multiplex TaqMan real time RT-PCR assay. J Virol Methods 2017; 252:24-31. [PMID: 28916427 DOI: 10.1016/j.jviromet.2017.09.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Revised: 06/13/2017] [Accepted: 09/12/2017] [Indexed: 11/25/2022]
Abstract
A multiplex TaqMan real time RT-PCR was developed for detection and differentiation of Sweet potato virus G, Sweet potato latent virus and Sweet potato mild mottle virus in one tube. Amplification and detection of a fluorogenic cytochrome oxidase gene was included as an internal control. The assay was compared with a multiplex RT-PCR developed in the initial study for the detection and differentiation of the three viruses and host 18S rRNA. Primers and/or probes of the two assays were designed from conserved regions of each virus. The two assays were optimized for primers/probes and primer concentrations and thermal cycling conditions. Sensitivity and specificity of the assays were compared each other and with other assay. Both assays were evaluated by 74 field samples original from five different provinces of China. RESULTS showed that the TaqMan real time RT-PCR offered rapid, sensitive, effective and reliable for the simultaneous detection and differentiation of the three viruses in sweet potato plants. The assay will be useful to quarantine and certification programs and virus surveys when large numbers of samples are tested.
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Affiliation(s)
- Pingxiu Lan
- Yunnan Agricultural University, Kunming 650201, Yunnan, China; USDA-ARS, National Germplasm Resources Laboratory, Beltsville, MD 20705, USA
| | - Fan Li
- Yunnan Agricultural University, Kunming 650201, Yunnan, China.
| | - Jorge Abad
- USDA-APHIS, Plant Germplasm Quarantine Program, Beltsville, MD 20705, USA
| | - Lingling Pu
- USDA-ARS, National Germplasm Resources Laboratory, Beltsville, MD 20705, USA
| | - Ruhui Li
- USDA-ARS, National Germplasm Resources Laboratory, Beltsville, MD 20705, USA.
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Qin Y, Wang L, Zhang Z, Qiao Q, Zhang D, Tian Y, Wang S, Wang Y, Yan Z. Complete genomic sequence and comparative analysis of the genome segments of sweet potato chlorotic stunt virus in China. PLoS One 2014; 9:e106323. [PMID: 25170926 PMCID: PMC4149548 DOI: 10.1371/journal.pone.0106323] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 07/29/2014] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Sweet potato chlorotic stunt virus (family Closteroviridae, genus Crinivirus) features a large bipartite, single-stranded, positive-sense RNA genome. To date, only three complete genomic sequences of SPCSV can be accessed through GenBank. SPCSV was first detected from China in 2011, only partial genomic sequences have been determined in the country. No report on the complete genomic sequence and genome structure of Chinese SPCSV isolates or the genetic relation between isolates from China and other countries is available. METHODOLOGY/PRINCIPAL FINDINGS The complete genomic sequences of five isolates from different areas in China were characterized. This study is the first to report the complete genome sequences of SPCSV from whitefly vectors. Genome structure analysis showed that isolates of WA and EA strains from China have the same coding protein as isolates Can181-9 and m2-47, respectively. Twenty cp genes and four RNA1 partial segments were sequenced and analyzed, and the nucleotide identities of complete genomic, cp, and RNA1 partial sequences were determined. Results indicated high conservation among strains and significant differences between WA and EA strains. Genetic analysis demonstrated that, except for isolates from Guangdong Province, SPCSVs from other areas belong to the WA strain. Genome organization analysis showed that the isolates in this study lack the p22 gene. CONCLUSIONS/SIGNIFICANCE We presented the complete genome sequences of SPCSV in China. Comparison of nucleotide identities and genome structures between these isolates and previously reported isolates showed slight differences. The nucleotide identities of different SPCSV isolates showed high conservation among strains and significant differences between strains. All nine isolates in this study lacked p22 gene. WA strains were more extensively distributed than EA strains in China. These data provide important insights into the molecular variation and genomic structure of SPCSV in China as well as genetic relationships among isolates from China and other countries.
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Affiliation(s)
- Yanhong Qin
- Key Laboratory of Crop Pest Control of Henan Province, Key Laboratory of Pest Management in South of North-China for Ministry of Agriculture of PRC, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Li Wang
- School of Life Sciences and technology, Nanyang Normal University, Nanyang, Henan, China
| | - Zhenchen Zhang
- Key Laboratory of Crop Pest Control of Henan Province, Key Laboratory of Pest Management in South of North-China for Ministry of Agriculture of PRC, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Qi Qiao
- Key Laboratory of Crop Pest Control of Henan Province, Key Laboratory of Pest Management in South of North-China for Ministry of Agriculture of PRC, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Desheng Zhang
- Key Laboratory of Crop Pest Control of Henan Province, Key Laboratory of Pest Management in South of North-China for Ministry of Agriculture of PRC, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Yuting Tian
- Key Laboratory of Crop Pest Control of Henan Province, Key Laboratory of Pest Management in South of North-China for Ministry of Agriculture of PRC, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Shuang Wang
- Key Laboratory of Crop Pest Control of Henan Province, Key Laboratory of Pest Management in South of North-China for Ministry of Agriculture of PRC, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Yongjiang Wang
- Key Laboratory of Crop Pest Control of Henan Province, Key Laboratory of Pest Management in South of North-China for Ministry of Agriculture of PRC, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Zhaoling Yan
- Institute of Agricultural Economics and Information, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
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Wosula EN, Davis JA, Clark CA, Smith TP, Arancibia RA, Musser FR, Reed JT. The Role of Aphid Abundance, Species Diversity, and Virus Titer in the Spread of Sweetpotato Potyviruses in Louisiana and Mississippi. PLANT DISEASE 2013; 97:53-61. [PMID: 30722262 DOI: 10.1094/pdis-06-12-0564-re] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Sweet potato feathery mottle virus (SPFMV), Sweet potato virus G (SPVG), and Sweet potato virus 2 (SPV2) are sweetpotato (Ipomoea batatas) potyviruses nonpersistently transmitted by aphids. Our objective was to determine how aphid abundance, aphid species diversity, and virus titers relate to the spread of SPFMV, SPVG, and SPV2 in Louisiana and Mississippi sweetpotato fields. The most abundant aphid species were Aphis gossypii, Myzus persicae, Rhopalosiphum padi, and Therioaphis trifolii. Aphids were captured during the entire crop cycle but virus infection of sentinel plants occurred mainly during the months of June to August. SPFMV was more commonly detected than SPVG or SPV2 in sentinel plants. Virus titers for SPFMV were higher in samples beginning in late June. Because significant aphid populations were present during April to June when virus titers were low in sweetpotato and there was very little virus infection of sentinel plants, low virus titers may have limited aphid acquisition and transmission opportunities. This is the first study to comprehensively examine aphid transmission of potyviruses in sweetpotato crops in the United States and includes the first report of R. maidis and R. padi as vectors of SPFMV, though they were less efficient than A. gossypii or M. persicae.
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Affiliation(s)
- E N Wosula
- Department of Plant Pathology and Crop Physiology
| | | | - C A Clark
- Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge 70803
| | - T P Smith
- Sweet Potato Research Station, Louisiana State University Agricultural Center, Chase 71324
| | - R A Arancibia
- Pontotoc Ridge-Flatwoods Branch Experiment Station, North Mississippi Research and Extension Center, Mississippi State University, Pontotoc 38863
| | - F R Musser
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Mississippi State 39762
| | - J T Reed
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Mississippi State 39762
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Qin Y, Zhang Z, Qiao Q, Zhang D, Tian Y, Wang Y. Molecular variability of sweet potato chlorotic stunt virus (SPCSV) and five potyviruses infecting sweet potato in China. Arch Virol 2012; 158:491-5. [DOI: 10.1007/s00705-012-1503-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2012] [Accepted: 08/30/2012] [Indexed: 11/29/2022]
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Li F, Zuo R, Abad J, Xu D, Bao G, Li R. Simultaneous detection and differentiation of four closely related sweet potato potyviruses by a multiplex one-step RT-PCR. J Virol Methods 2012; 186:161-6. [PMID: 22827958 DOI: 10.1016/j.jviromet.2012.07.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Revised: 07/11/2012] [Accepted: 07/16/2012] [Indexed: 10/28/2022]
Abstract
Four closely related potyviruses, Sweet potato feathery mottle virus (SPFMV), Sweet potato virus C (SPVC), Sweet potato virus G (SPVG) and/or Sweet potato virus 2 (SPV2), are involved in sweet potato virus disease complexes worldwide. Identification and detection of these viruses are complicated by high similarity among their genomic sequences, frequent occurrence as mixed infections and low titer in many sweet potato cultivars. A one-tube multiplex reverse transcription-PCR (mRT-PCR) assay was developed for simultaneous detection and differentiation of SPFMV, SPVC, SPVG and SPV2. Four specific forward primers unique to each virus and one reverse primer based on the region conserved in all four viruses were selected and used in the assay. The mRT-PCR assay was optimized for primer concentration and cycling conditions. It was tested using sweet potato plants infected naturally with one to four target viruses and then evaluated using field samples collected from southwestern China. The mRT-PCR assay is reliable and sensitive as a simple, rapid and cost-effective method to detect these pathogens in sweet potato. This assay will be useful to quarantine and certification programs and virus surveys when large numbers of samples are tested.
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Affiliation(s)
- Fan Li
- USDA-ARS, National Germplasm Resources Laboratory, Beltsville, MD 20705, USA
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Esterhuizen LL, van Heerden SW, Rey MEC, van Heerden H. Genetic identification of two sweet-potato-infecting begomoviruses in South Africa. Arch Virol 2012; 157:2241-5. [PMID: 22814698 DOI: 10.1007/s00705-012-1398-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Accepted: 05/22/2012] [Indexed: 11/29/2022]
Abstract
The complete genome sequences of two monopartite begomovirus isolates (genus Begomovirus, family Geminiviridae) that occurred either alone or in mixed infection in sweet potato (Ipomoea batatas) plants collected in Waterpoort, South Africa, are presented. One of the isolates corresponds to sweet potato mosaic-associated virus (SPMaV; SPMaV-[ZA:WP:2011]), with which it shared 98.5 % nucleotide identity, whereas the second isolate corresponds to a new variant of sweet potato leaf curl Sao Paulo virus (SPLCSPV; SPLCSPV-[ZA:WP:2011]), with which it shared 91.4 % nucleotide identity. The phylogenetic and recombination relationships of these isolates to other monopartite Ipomoea-infecting begomoviruses were also investigated. SPLCSPV-[ZA:WP:2011] was found to be a natural recombinant of swepoviruses consisting of two distinct parental genomic sequences from SPLCSPV and sweet potato leaf curl Georgia virus (SPLCGV).
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Affiliation(s)
- L L Esterhuizen
- Department of Biochemistry, University of Johannesburg, Johannesburg, South Africa.
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Li F, Xu D, Abad J, Li R. Phylogenetic relationships of closely related potyviruses infecting sweet potato determined by genomic characterization of Sweet potato virus G and Sweet potato virus 2. Virus Genes 2012; 45:118-25. [PMID: 22562225 DOI: 10.1007/s11262-012-0749-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Accepted: 04/10/2012] [Indexed: 11/24/2022]
Abstract
Complete nucleotide sequences of Sweet potato virus G (SPVG) and Sweet potato virus 2 (SPV2) were determined to be 10,800 and 10,731 nucleotides, respectively, excluding the 3'-poly(A) tail. Their genomic organizations are typical of potyviruses, encoding a polyprotein which is likely cleaved into 10 mature proteins by three viral proteinases. Conserved motifs of orthologous proteins of viruses in the genus Potyvirus are found in corresponding positions of both viruses. Pairwise comparisons of individual protein sequences of the two viruses with those of 78 other potyviruses show that P1 protein and coat protein (CP) of both viruses are significantly large, with the SPVG CP as the largest among the all the known species of the genus Potyvirus. The extended N-terminal region of the P1 protein is conserved in the potyviruses and ipomovirus infecting sweet potato. A novel ORF, PISPO, is identified within the P1 region of SPVG, SPV2, Sweet potato feathery mottle virus (SPFMV), and Sweet potato virus C (SPVC). The C-terminal half of CP is highly conserved among SPFMV, SPVC, SPVG, SPV2, and Sweet potato virus-Zimbabwe. Phylogenetic analysis based on the deduced CP amino acid sequences supports the view that these five viruses are grouped together in a SPFMV lineage. The analysis also reveals that Sweet potato virus Y and Ipomoea vein mosaic virus are grouped with SPV2 as one species, and these two viruses should be consolidated with SPV2.
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Affiliation(s)
- Fan Li
- National Germplasm Resources Laboratory, USDA-ARS, Beltsville, MD 20705, USA
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Clark CA, Davis JA, Abad JA, Cuellar WJ, Fuentes S, Kreuze JF, Gibson RW, Mukasa SB, Tugume AK, Tairo FD, Valkonen JPT. Sweetpotato Viruses: 15 Years of Progress on Understanding and Managing Complex Diseases. PLANT DISEASE 2012; 96:168-185. [PMID: 30731810 DOI: 10.1094/pdis-07-11-0550] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
| | | | - Jorge A Abad
- U.S. Department of Agriculture, Animal and Plant Health Inspection Service, Plant Germplasm Quarantine Programs, Beltsville, MD
| | | | | | | | - Richard William Gibson
- Natural Resources Institute, University of Greenwich, Chatham, Kent, CT2 7LT, United Kingdom
| | - Settumba B Mukasa
- Department of Agricultural Production, College of Agricultural and Environmental Sciences, Makerere University, Kampala, Uganda
| | - Arthur K Tugume
- Department of Biological Sciences, College of Natural Sciences, Makerere University, Kampala, Uganda
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Rännäli M, Czekaj V, Jones RAC, Fletcher JD, Davis RI, Mu L, Valkonen JPT. Molecular Characterization of Sweet potato feathery mottle virus (SPFMV) Isolates from Easter Island, French Polynesia, New Zealand, and Southern Africa. PLANT DISEASE 2009; 93:933-939. [PMID: 30754530 DOI: 10.1094/pdis-93-9-0933] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Strains of Sweet potato feathery mottle virus (SPFMV; Potyvirus; Potyviridae) infecting sweet-potato (Ipomoea batatas) in Oceania, one of the worlds' earliest sweetpotato-growing areas, and in southern Africa were isolated and characterized phylogenetically by analysis of the coat protein (CP) encoding sequences. Sweetpotato plants from Easter Island were co-infected with SPFMV strains C and EA. The EA strain isolates from this isolated location were related phylogenetically to those from Peru and East Africa. Sweetpotato plants from French Polynesia (Tahiti, Tubuai, and Moorea) were co-infected with SPFMV strains C, O, and RC in different combinations, whereas strains C and RC were detected in New Zealand. Sweetpotato plants from Zimbabwe were infected with strains C and EA and those from Cape Town, South Africa, with strains C, O, and RC. Co-infections with SPFMV strains and Sweet potato virus G (Potyvirus) were common and, additionally, Sweet potato chlorotic fleck virus (Carlavirus) was detected in a sample from Tahiti. Taken together, occurrence of different SPFMV strains was established for the first time in Easter Island, French Polynesia, and New Zealand, and new strains were detected in Zimbabwe and the southernmost part of South Africa. These results from the Southern hemisphere reflect the anticipated global distribution of strains C, O, and RC but reveal a wider distribution of strain EA than was known previously.
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Affiliation(s)
- M Rännäli
- Department of Applied Biology, PO Box 27, FIN-00014 University of Helsinki, Finland
| | - V Czekaj
- Department of Applied Biology, PO Box 27, FIN-00014 University of Helsinki, Finland
| | - R A C Jones
- Agricultural Research Western Australia, Locked Bag No. 4, Bentley Delivery Centre, Perth, WA 6983, and West Australian State Agricultural Biotechnology Centre, Murdoch University, Perth, WA 6150
| | - J D Fletcher
- New Zealand Institute for Plant & Food Research, Private Bag 4704, Christchurch
| | - R I Davis
- Northern Australia Quarantine Strategy (NAQS) and Australian Quarantine and Inspection Service (AQIS), P.O. Box 1054, Mareeba, Queensland 4880
| | - L Mu
- Service du Dévelopement Rural, Département de la Protection des Végétaux, BP 100, Papeete, French Polynesia
| | - J P T Valkonen
- Department of Applied Biology, University of Helsinki, Finland
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Rodoni B. The role of plant biosecurity in preventing and controlling emerging plant virus disease epidemics. Virus Res 2009; 141:150-7. [PMID: 19152816 DOI: 10.1016/j.virusres.2008.11.019] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/25/2008] [Indexed: 11/29/2022]
Abstract
A number of research strategies have been initiated over the last decade to enhance plant biosecurity capacity at the pre-border, border and post-border frontiers. In preparation for emerging plant virus epidemics, diagnostic manuals for economically important plant viruses that threaten local industries have been developed and validated under local conditions. Contingency plans have also been prepared that provide guidelines to stakeholders on diagnostics, surveillance, survey strategies, epidemiology and pest risk analysis. Reference collections containing validated positive virus controls have been expanded to support a wide range of biosecurity sciences. Research has been conducted to introduce high throughput diagnostic capabilities and the design and development of advanced molecular techniques to detect virus genera. These diagnostic tools can be used by post entry quarantine agencies to detect known and unknown plant viral agents. Pre-emptive breeding strategies have also been initiated to protect plant industries if and when key exotic viruses become established in localized areas. With the emergence of free trade agreements between trading partners there is a requirement for quality assurance measures for pathogens, including viruses, which may occur in both the exporting and importing countries. These measures are required to ensure market access for the exporting country and also to minimize the risk of the establishment of a damaging virus epidemic in the importing country.
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Affiliation(s)
- B Rodoni
- Department of Primary Industries Victoria, Knoxfield Centre, Knoxfield, Victoria, Australia.
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