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Analysis of Mutation/Rearrangement Frequencies and Methylation Patterns at a Given DNA Locus Using Restriction Fragment Length Polymorphism

 Last Update: 2020-11-20
 Source: Internet
 Author: User

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Restriction fragment length polymorphism (RFLP) is a difference in
DNA
sequences of organisms belonging to the same species. RFLPs are typically detected as DNA fragments of different lengths after digestion with various restriction endonucleases. The comparison of RFLPs allows investigators to analyze the frequency of occurrence of mutations, such as point mutations, deletions, insertions, and gross chromosomal rearrangements, in the progeny of stressed plants. The assay involves restriction enzyme digestion of DNA followed by hybridization of digested DNA using a radioactively or enzymatically labeled probe. Since DNA can be digested with methylation sensitive enzymes, the assay can also be used to analyze a methylation pattern of a particular locus. Here, we describe RFLP analysis using methylation-insensitive and methylation-sensitive enzymes.

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