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Analysis of Population Structures of Viral Isolates using Single StrandConformation Polymorphism (SSCP) Method

 Last Update: 2021-01-17
 Source: Internet
 Author: User

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The analysis of viral populations requires the use of techniques that describe characteristics of individuals. The single-strand conformation polymorphism (SSCP) makes possible the identification of genetic differences between viral sequences and constitutes an alternative to the expensive and time-consuming cloning and sequencing strategies. Applied to small genomic regions (from 100 to 500 bases in length), SSCP patterns could describe, under appropriate experimental conditions, single nucleotide variations in the studied sequence. The different steps of a complete SSCP procedure, from sampling to pattern analysis (including nucleic acid extraction, RT-
PCR
amplification, double-stranded
DNA
quantification, polyacrylamide gel preparation, electrophoresis conditions, and staining procedures), are described using a region (500 bases) of the barley yellow dwarf virus-PAV (BYDV-PAV,
Luteovirus
) genome as molecular target.

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