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  • Title: Molecular and biological characterization of soybean yellow mottle mosaic virus severe strain infecting soybean in India.
    Author: Sandra N, Tripathi A, Lal SK, Mandal B, Jain RK.
    Journal: 3 Biotech; 2021 Aug; 11(8):381. PubMed ID: 34458057.
    Abstract:
    UNLABELLED: The complete nucleotide sequence and genome organization of soybean yellow mottle mosaic virus severe strain causing bright yellow mosaic, mottling and puckering symptoms in soybean (Glycine max) from India was determined. The monopartite single stranded genomic RNA is 3974 nuclotides long and has the potential to encode six viral proteins viz., p25, p83, p8, p10, p39 and p25. The SYMMV-Sb isolate differed from mungbean strain with 69 nucleotides and nine aminoacids dispersed over the various ORFs. Comparative sequence analysis revealed that SYMMV-Sb shared 98% nt sequence identity at complete genome level and 96-100% at all ORFs level with SYMMV mungbean strain from India and 71-92% identity with SYMMV Korean soybean isolate, whereas it showed very low sequence identity with other tombusviridae members (2-53%). The phylogenetic analysis showed the clustering of SYMMV-Sb along with other members of genus Gammacarmovirus. The SYMMV-Sb isolate produced chlorotic blotches, mild and veinal mottling, necrosis and puckering symptoms in various leguminous host plants. The symptomatalogy of the soybean isolate was differed from mungbean strain as earlier induced severe symptoms on soybean and mild symptoms on mungbean. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s13205-021-02925-2.
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