Yellow mosaic virus infecting soybean in northern India is distinct from the species infecting soybean in southern and western India

Abstract

Genomic components of the begomovirus causing yellow mosaic disease (YMD) in soybean in Delhi were cloned, sequenced and infectivity proved. Nucleotide sequence analysis of the virus isolate revealed more than 89% identity with Mungbean yellow mosaic India virus (MYMIV) and therefore it is designated as soybean isolate of MYMIV (MYMIV-[Sb]). Total nucleotide and predicted amino acid sequence analysis of MYMIV-[Sb] with other yellow mosaic virus isolates infecting legumes established dichotomy of the isolates into two species namely MYMIV and mungbean yellow mosaic virus (MYMV). Involvement of at least two distinct viruses in the etiology of soybean YMD in India is indicated here.