Abstract
Yellow mosaic disease of jute (Corchorus capsularis) was observed on several plants in different jute growing region (Bangladesh) in April 2013. PCR assays and BLAST analysis of the DNA sequences were performed. We have cloned and sequenced eleven isolates of Corchorus golden mosaic virus (CoGMV) collected from eleven different regions in Bangladesh. DNA A sequence of CoGMV Bangladeshi (BD) isolates shared highest identity 97.3-99.1% with the Indian isolates and 93.9-94.3% with the Vietnamese isolate of CoGMV, whereas DNA B shared sequence identity 93.9-94.3% with the CoGMV isolates reported from Vietnam and India. Genetic analysis revealed that CoGMV isolates originating from Bangladesh possessed greater genetic variability than the Indian and Vietnamese isolates. This is thought to be the first report of Corchorus golden mosaic virus (CoGMV) associated with yellow mosaic disease of jute from Bangladesh
Highlights
Jute (Corchorus capsularis L.) is an important natural fibre in the world fibre industry and ranks second among the fibre producing crops in terms of global production
Several Corchorus golden mosaic virus (CoGMV) isolates reported from India and Vietnam are bipartite with DNA A and DNA B genomes of about 2.7 kb each, encoding seven open reading frame (ORF) (Ha et al, 2008)
The genetic variability analysis of CoGMV from Bangladesh showed the highest haplotype diversity (Hd =1.00), so each Bangladeshi isolate occurs as a distinct variant
Summary
Jute (Corchorus capsularis L.) is an important natural fibre in the world fibre industry and ranks second among the fibre producing crops in terms of global production. Several CoGMV isolates reported from India and Vietnam are bipartite with DNA A and DNA B genomes of about 2.7 kb each, encoding seven ORFs (Ha et al, 2008). The occurrence of yellow mosaic disease, molecular characterization of CoGMV and biochemical alteration of the infected plants has been reported from India and Vietnam and the reports are limited in number (Ghosh et al, 2011).
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