Occurrence of cucurbit yellow stunting disorder virus causing yellowing disease of cucurbits in India

Cucurbitaceous crops are major vegetable group cultivated widely in India. Leaves of cucumber, bitter gourd and watermelon were observed with virus like yellowing symptoms of interveinal chlorosis. DAS-ELISA and RT-PCR assay were performed to identify the infecting virus. Nucleotide sequence analysis confirmed the association of Cucurbit yellow stunting disorder virus (CYSDV), a Crinivirus belonging to family Closteroviridae. This study documented the prevalence of CYSDV on cucurbitaceous crops for the first time from India.