Abstract
Five different Indian cassava mosaic virus (ICMV) specific primers were used to screen the virus from CMD affected samples collected from the different parts of Tamil Nadu. Out of five specific primers, three were designed to amplify the specific viral genes of ICMV and two were used for detection of ICMV. All primers amplified specific regions of the virus in all samples. The specific primer for amplification of coat protein gene of ICMV amplified 800 bp of coat protein gene from both ICMV and Sri Lankan cassava mosaic virus (SLCMV) infected samples invariably. The specific primer for amplifying movement protein (MP) gene amplified about 900 bp of movement protein gene from all CMD infected cassava samples. Likewise, 800 bp of nuclear shuttle protein (NSP) gene was amplified from all the samples. The primer ICMV A amplified 700 bp of PCR product from mosaic diseased cassava samples. A 300 bp product from DNA A of the virus amplified in all samples using the primer ICMV A1.
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