Article3 Biotech2023
Molecular characterization of the Indian isolate (Ka-To) of tomato spotted wilt virus (TSWV) infecting tomato (
Article in 3 Biotech, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed, 4 citations in OpenAlex.
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5 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Tomato spotted wilt virus (TSWV) infecting tomato has been identified as an emerging constraint for tomato cultivation in the southern Indian states of Karnataka and Tamil Nadu. Infection of TSWV produces circular necrotic ring spots on leaves, stem and floral necrosis and necrotic ringspots on fruits of tomato. In this study, we describe the characterization of TSWV isolate (Ka-To) infecting tomato from India based on biological, serological and molecular assay. Pathogenicity of TSWV (Ka-To) isolate was established by mechanical inoculation of sap from infected leaves on tomato, cowpea and datura which expressed necrotic or chlorotic local lesions. Samples were tested positive in the serological assay performed with TSWV-specific immunostrips. Further, reverse transcription polymerase chain reaction (RT-PCR) amplification of coat protein gene followed by sequencing, unequivocally confirmed the identity of TSWV. The obtained full-length nucleotide sequences of Ka-To isolate [L RNA-MK977648; M RNA-MK977649; and S RNA-MK977650] had greater similarity to the TSWV isolates of Spain and Hungary infecting tomato and pepper. The phylogenetic and recombination analysis showed the evidence for reassortment and recombination in the genome of Ka-To isolate. To the best of our knowledge, this is the first confirmed evidence for the occurrence of TSWV on tomato in India. Information obtained in this study issues a forewarning on the emergence of TSWV on vegetable ecosystem in the Indian subcontinent, requiring urgent management strategies to curtail its pestilence. Supplementary Information: The online version contains supplementary material available at 10.1007/s13205-023-03579-y.
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