Cucurbit aphid-borne yellows virus from melon plants in Brazil is an interspecific recombinant

Costa, Tairine Melo; Blawid, Rosana; Aranda, Miguel A.; Freitas, D. M. S.; Andrade, Gilcifran Prestes de; Inoue‐Nagata, Alice K.; Nagata, Tatsuya

doi:10.1007/s00705-018-4024-2

Cited by 20 publications

(22 citation statements)

References 25 publications

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“…The nt similarity of the CABYV BL-4 isolate was >90% with Chinese, Korean, and Japanese isolates and <90% with other CABYV isolates (Table 8). The query cover for the Brazilian isolates was only 61% because it is a recombinant strain with around 60% CABYV at the 5' end and 40% of unknown virus origin at the 3' end of the genome [28].…”

Section: Sequence Analysis Of Cabyv Bl-4 Isolatementioning

confidence: 99%

High Prevalence of Three Potyviruses Infecting Cucurbits in Oklahoma and Phylogenetic Analysis of Cucurbit Aphid-Borne Yellows Virus Isolated from Pumpkins

2021

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Field information about viruses infecting crops is fundamental for understanding the severity of the effects they cause in plants. To determine the status of cucurbit viruses, surveys were conducted for three consecutive years (2016–2018) in different agricultural districts of Oklahoma. A total of 1331 leaf samples from >90 fields were randomly collected from both symptomatic and asymptomatic cucurbit plants across 11 counties. All samples were tested with the dot-immunobinding assay (DIBA) against the antisera of 10 known viruses. Samples infected with papaya ringspot virus (PRSV-W), watermelon mosaic virus (WMV), zucchini yellow mosaic virus (ZYMV), and cucurbit aphid-borne-yellows virus (CABYV) were also tested by RT-PCR. Of the 10 viruses, PRSV-W was the most widespread, with an overall prevalence of 59.1%, present in all 11 counties, followed by ZYMV (27.6%), in 10 counties, and WMV (20.7%), in seven counties, while the remaining viruses were present sporadically with low incidence. Approximately 42% of the infected samples were positive, with more than one virus indicating a high proportion of mixed infections. CABYV was detected for the first time in Oklahoma, and the phylogenetic analysis of the first complete genome sequence of a CABYV isolate (BL-4) from the US showed a close relationship with Asian isolates.

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Section: Sequence Analysis Of Cabyv Bl-4 Isolatementioning

confidence: 99%

High Prevalence of Three Potyviruses Infecting Cucurbits in Oklahoma and Phylogenetic Analysis of Cucurbit Aphid-Borne Yellows Virus Isolated from Pumpkins

2021

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“…We have shown evidence of recombination in the genome of BrYV-Tas, with the analysis suggesting that the recombinant consisted of genomic parts from distinct BrYV isolates. Recombination events in RNA viruses have been well known [ 27 , 28 , 29 ], and both intraspecific, homologous and interspecific, non-homologous recombination are thought to be common and important in the evolution of poleroviruses. A few examples include BrYV [ 3 ], FBPV-1 [ 30 ], Cucurbit aphid-borne yellows virus (CABYV) [ 27 , 31 ], Sugarcane yellow leaf virus (ScYLV) [ 12 , 32 ], and Cotton leafroll dwarf virus (CLRDV) [ 33 ].…”

Section: Discussionmentioning

confidence: 99%

Genomic Characterisation of an Isolate of Brassica Yellows Virus Associated with Brassica Weed in Tasmania

Umar

Farooq

Tegg

et al. 2022

Plants

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Brassica yellows virus (BrYV), a tentative species in the genus Polerovirus, of the Solemoviridae family, is a phloem-restricted and aphid-transmitted virus with at least three genotypes (A, B, and C). It has been found across mainland China, South Korea, and Japan. BrYV was previously undescribed in Tasmania, and its genetic variability in the state remains unknown. Here, we describe a near-complete genome sequence of BrYV (genotype A) isolated from Raphanus raphanistrum in Tasmania using next-generation sequencing and sanger sequencing of RT-PCR products. BrYV-Tas (GenBank Accession no. OM469309) possesses a genome of 5516 nucleotides (nt) and shares higher sequence identity (about 90%) with other BrYV isolates. Phylogenetic analyses showed variability in the clustering patterns of the individual genes of BrYV-Tas. Recombination analysis revealed beginning and ending breakpoints at nucleotide positions 1922 to 5234 nt, with the BrYV isolate LC428359 and BrYV isolate KY310572 identified as major and minor parents, respectively. Results of the evolutionary analysis showed that the majority of the codons for each gene are evolving under purifying selection, though a few codons were also detected to have positive selection pressure. Taken together, our findings will facilitate an understanding of the evolutionary dynamics and genetic diversity of BrYV.

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“…The recombinant CABYV was able to overcome the resistance of C. melo 'TGR 1551' that was reported to be resistant to common CABYV. Therefore, the virus was reclassified as Cucurbit Whitefly Borne Yellow virus (Costa et al, 2019(Costa et al, , 2020. Recombinations between subgroups of CMV has been widely reported under natural conditions.…”

Section: Virus Evolution In Cucurbit Cropsmentioning

confidence: 99%

Viruses of cucurbit crops: current status in the Mediterranean Region

Radouane

Ezrari

Belabess

et al. 2021

Phytopathol. Mediterr.

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Cucurbits are among the most cultivated crops, and the most economically important species are melon (Cucumis melo L.), cucumber (Cucumis sativus L.), watermelon (Citrullus lanatus Thumb.), squash (Cucurbita pepo L.), and pumpkin (Cucurbita spp.). These crops have become important income sources providing export and local consumption commodities in many Mediterranean countries. Increased area of cucurbits has led to the emergence of several viral diseases, which can have impacts on crop production and threaten agricultural sustainability. An overview of the most damaging cucurbit viruses in the Mediterranean area is provided to improve understanding of the diseases they cause and to emphasize effective disease management strategies. An updating of the geographical distribution of these viruses, the symptoms they cause and their means of transmission is also provided. Disease management methods and measures by farmers and phytosanitary authorities to address the virus outbreaks are outlined, including diagnostics, use of tolerant cultivars, and chemical and biological vector control. Mediterranean region farmers have learned many lessons from the damaging pandemics caused by cucurbit viruses, through the extensive published research, and this review provides a basis for managing future outbreaks of newly emerging virus infections.

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Cucurbit aphid-borne yellows virus from melon plants in Brazil is an interspecific recombinant

Cited by 20 publications

References 25 publications

High Prevalence of Three Potyviruses Infecting Cucurbits in Oklahoma and Phylogenetic Analysis of Cucurbit Aphid-Borne Yellows Virus Isolated from Pumpkins

High Prevalence of Three Potyviruses Infecting Cucurbits in Oklahoma and Phylogenetic Analysis of Cucurbit Aphid-Borne Yellows Virus Isolated from Pumpkins

Genomic Characterisation of an Isolate of Brassica Yellows Virus Associated with Brassica Weed in Tasmania

Viruses of cucurbit crops: current status in the Mediterranean Region

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