New record of bipartite <i>Squash leaf curl China virus</i> (SLCCNV) and <i>Croton yellow vein mosaic</i> beta satellite associated with yellow vein disease of ash gourd in India

Riyaz, S.U. Mohammed; Sundarajan, Deepan; Jesse, Michael Immanuel; Gunasekaran, Dharanivasan; Kathiravan, K.

doi:10.5197/j.2044-0588.2015.031.003

Cited by 9 publications

(5 citation statements)

References 3 publications

(4 reference statements)

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“…SLCCV infecting squash (Cucurbita pepo) reduced production in India and Pakistan and resulted in huge economic losses (Saritha et al, 2011;Tahir et al, 2010b). SLCCV have also been reported from cucurbits like pumpkin (Vo et al, 2022), ash gourd (Riyaz et al, 2015) and melon (Wu et al, 2020). 100% crop loss in Benincasa hispida due to SLCCV was reported from Tamil Nadu, India (Riyaz et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

“…SLCCV have also been reported from cucurbits like pumpkin (Vo et al, 2022), ash gourd (Riyaz et al, 2015) and melon (Wu et al, 2020). 100% crop loss in Benincasa hispida due to SLCCV was reported from Tamil Nadu, India (Riyaz et al, 2015). Begomovirus has become an important constraint to crop production leading to devastating crop loss (Pandey et al, 2021).…”

Section: Resultsmentioning

confidence: 99%

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Investigation on disease incidence, distribution and diversity of Begomoviruses infecting cucurbitaceous crops in North Bengal, India

Tamang,

Saha,

Saha

et al. 2024

JEB

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Aim: To study the disease incidence and diversity of Begomovirus infection and crop loss due to spread of virus across different districts of North Bengal. Methodology: Several fields in different districts of North Bengal were surveyed and potential begomoviral-infected samples were collected for further analysis. Total DNA extraction, PCR analysis, sequencing and phylogenetic analysis were conducted. Results: During 2019-2021, ten fields of each district were surveyed and begomoviral occurrence was observed in almost every field. The disease incidence in different districts varied from 15-45%. The highest disease (42.5%) incidence of was observed in the Darjeeling district while the lowest (15%) was recorded from Alipurduar district. The maximum crop loss due to Begomovirus was 64-100% in bitter gourd, 40-80% in cucumber and 20-30% in wax gourd. 153 samples from 6 different cucurbits were collected and analysed. PCR using AV494/AC1048 primers that amplified coat protein region (~550bp) showed 74% of the samples as positive. Upon sequencing and BLAST analysis, ToLCNDV, SLCCV and BGYVV were detected. In phylogenetic analysis, the isolates clustered in three separate clades based on Begomovirus species irrespective of the hosts. Present isolates showed more closeness to Indian and Bangladesh isolates. Interpretation: The documentation of disease severity caused by Begomovirus is of extreme importance for food security of the people. Present study revealed that Begomovirus is present in all the crop field studied. The results indicated an urgent need for the management of the viruses to save crops. Key words: Begomovirus, Cucurbitaceous crops, Disease incidence, North Bengal

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Investigation on disease incidence, distribution and diversity of Begomoviruses infecting cucurbitaceous crops in North Bengal, India

Tamang,

Saha,

Saha

et al. 2024

JEB

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“…So far, most satellites were associated with monopartite begomoviruses, rare with bipartite begomoviruses [ 45 , 46 ]. Meanwhile, a SLCCNV-associated Croton yellow vein mosaic betasatellite was detected on wax gourd from India [ 47 ], however, the relation of the satellite and SLCCNV should be further confirmed.…”

Section: Discussionmentioning

confidence: 99%

Genetic Diversity and Geographic Distribution of Cucurbit-Infecting Begomoviruses in the Philippines

Neoh

Lai

Lin

et al. 2023

Plants

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Cucurbits are important economic crops worldwide. However, the cucurbit leaf curl disease (CuLCD), caused by whitefly-transmitted begomoviruses constrains their production. In Southeast Asia, three major begomoviruses, Tomato leaf curl New Delhi virus (ToLCNDV), Squash leaf curl China virus (SLCCNV) and Squash leaf curl Philippines virus (SLCuPV) are associated with CuLCD. SLCuPV and SLCCNV were identified in Luzon, the Philippines. Here, the genetic diversity and geographic distribution of CuLCD-associated begomoviruses in the Philippines were studied based on 103 begomovirus detected out of 249 cucurbit samples collected from 60 locations throughout the country in 2018 and 2019. The presence of SLCCNV and SLCuPV throughout the Philippines were confirmed by begomovirus PCR detection and viral DNA sequence analysis. SLCuPV was determined as a predominant CuLCD-associated begomovirus and grouped into two strains. Interestingly, SLCCNV was detected in pumpkin and bottle gourd without associated viral DNA-B and mixed-infected with SLCuPV. Furthermore, the pathogenicity of selected isolates of SLCCNV and SLCuPV was confirmed. The results provide virus genetic diversity associated with CuLCD for further disease management, especially in developing the disease-resistant cultivars in the Philippines as well as Southeast Asia.

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“…ToLCNDV have been recorded in India [29], Southeast Asia [3], Spain [30], the Mediterranean [31] and Taiwan [32]. SLCCNV is currently distributed in China [33], India [14][15][16][17] and Southeast Asia [12,13,34]. The SLCuPV was identified in the Philippines and Taiwan [5,19].…”

Section: Discussionmentioning

confidence: 99%

“…So far, ToLCNDV was identified on more than 15 cucurbit crops distributed in nine countries [10]. SLCCNV was identified on more than six cucurbit crops in eight countries [12][13][14][15][16][17][18]. The SLCuPV was first identified in the Philippines and most closely related to the SLCCNV (88% nucleotide identity of DNA-A) [5].…”

Section: Introductionmentioning

confidence: 99%

Genetic Diversity, Pathogenicity and Pseudorecombination of Cucurbit-Infecting Begomoviruses in Malaysia

Chen

Lai

Lin

et al. 2021

Plants

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Cucurbits are important crops in the world. However, leaf curl disease constrains their production. Here, begomovirus diversity and pathogenicity associated with the disease in Malaysia were studied based on 49 begomovirus-detected out of 69 symptomatic plants from seven cucurbit crops in 15 locations during 2016 and 2017. The presence of Squash leaf curl China virus (SLCCNV) and Tomato leaf curl New Delhi virus (ToLCNDV) were confirmed by virus detection by polymerase chain reaction, viral DNA sequence analysis and specific detection of the viral components. ToLCNDV Malaysian isolates were further distinguished into strains A, B, C and D. Virus co-infection was detected in bitter gourd, bottle gourd and squash. Among them, eight bitter gourd samples were detected without SLCCNV DNA-A. However, one bottle gourd and five squash samples were without ToLCNDV DNA-B. Pseudorecombination of ToLCNDV DNA-A and SLCCNV DNA-B was detected in two bitter gourd samples. The pathogenic viruses and pseudorecombinants were confirmed by agroinoculation. The viral DNA-B influencing on symptomology and host range was also confirmed. The results strengthen the epidemic of cucurbit-infecting begomovirus in Malaysia as well as Southeast Asia. Especially, the natural pseudorecombinant of begomovirus that extends host range and causes severe symptom implies a threat to crops.

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New record of bipartite Squash leaf curl China virus (SLCCNV) and Croton yellow vein mosaic beta satellite associated with yellow vein disease of ash gourd in India

Cited by 9 publications

References 3 publications

Investigation on disease incidence, distribution and diversity of Begomoviruses infecting cucurbitaceous crops in North Bengal, India

Investigation on disease incidence, distribution and diversity of Begomoviruses infecting cucurbitaceous crops in North Bengal, India

Genetic Diversity and Geographic Distribution of Cucurbit-Infecting Begomoviruses in the Philippines

Genetic Diversity, Pathogenicity and Pseudorecombination of Cucurbit-Infecting Begomoviruses in Malaysia

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