Abstract
Severe symptoms of cotton leaf curl disease (CLCuD) are caused by the association of a single-stranded circular DNA satellite (betasatellite) with a helper begomovirus. In this study, we analyzed 40 leaf samples (primarily cotton with CLCuD symptoms and other plants growing close by) from four sites between New Delhi and the Pakistan/India border, using rolling-circle amplification (RCA) and PCR. In total, the complete sequences of 12 different helper viruses, eight alphasatellites, and one betasatellite from five different plant species were obtained. A recombinant helper virus molecule found in okra and a novel alphasatellite-related DNA from croton are also described. This is the first report of the presence of both DNA components (helper virus and betasatellite) associated with resistance-breaking CLCuD in India, and it highlights the need for further work to combat its damage and spread.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Cluster Analysis
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DNA, Satellite / classification*
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DNA, Satellite / genetics*
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DNA, Satellite / isolation & purification
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DNA, Viral / genetics*
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DNA, Viral / isolation & purification
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Geminiviridae / classification*
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Geminiviridae / genetics*
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Geminiviridae / isolation & purification
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Genome, Viral
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Gossypium / virology*
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India
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Molecular Sequence Data
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Phylogeny
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Plant Diseases / virology*
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Plant Leaves / virology
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Polymerase Chain Reaction
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Sequence Analysis, DNA
Substances
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DNA, Satellite
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DNA, Viral
Associated data
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GENBANK/FN645895
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GENBANK/FN645896
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GENBANK/FN645897
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GENBANK/FN645898
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GENBANK/FN645899
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GENBANK/FN645900
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GENBANK/FN645901
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GENBANK/FN645902
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GENBANK/FN645903
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GENBANK/FN645904
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GENBANK/FN645905
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GENBANK/FN645906
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GENBANK/FN645907
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GENBANK/FN645908
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GENBANK/FN645909
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GENBANK/FN645910
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GENBANK/FN645911
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GENBANK/FN645912
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GENBANK/FN645913
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GENBANK/FN645914
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GENBANK/FN645915
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GENBANK/FN645916
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GENBANK/FN645917
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GENBANK/FN645918
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GENBANK/FN645919
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GENBANK/FN645920
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GENBANK/FN645921
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GENBANK/FN645922
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GENBANK/FN645923
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GENBANK/FN645924
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GENBANK/FN645925
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GENBANK/FN645926
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GENBANK/FN645927
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GENBANK/FN645928
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GENBANK/FN645929
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GENBANK/FN645930
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GENBANK/FN645931
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GENBANK/FN645932
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GENBANK/FN645933
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GENBANK/FN645934
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GENBANK/FN645935
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GENBANK/FN645936
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GENBANK/FN645937
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GENBANK/FN645938
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GENBANK/FN658709
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GENBANK/FN658710
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GENBANK/FN658711
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GENBANK/FN658712
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GENBANK/FN658713
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GENBANK/FN658714
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GENBANK/FN658715
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GENBANK/FN658716
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GENBANK/FN658717
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GENBANK/FN658718
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GENBANK/FN658719
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GENBANK/FN658720
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GENBANK/FN658721
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GENBANK/FN658722
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GENBANK/FN658723
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GENBANK/FN658724
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GENBANK/FN658725
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GENBANK/FN658726
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GENBANK/FN658727
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GENBANK/FN658728
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GENBANK/FN658729
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GENBANK/FN658730
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GENBANK/FN658731
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GENBANK/FN658732
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GENBANK/FN658733
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GENBANK/FN658734
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GENBANK/FN658735
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GENBANK/FN658736
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GENBANK/FN658737
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RefSeq/NC_013801
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RefSeq/NC_013802
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RefSeq/NC_013803