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AFLP PCR (CAT#: STEM-MB-0197-WXH)

Introduction

Amplified fragment length polymorphism(AFLP) PCR is a PCR-based technique that uses selective amplification of a section of digested DNA fragments to generate unique fingerprints for genomes of interest.<br />This technique can quickly generate large numbers of marker fragments for any organism, without prior knowledge of the genomic sequence.




Principle

AFLP PCR uses restriction enzymes to digest genomic DNA and allows attachment of adaptors to the sticky ends of the fragments. A part of the restriction fragments is then selected to be amplified by using primers that are complementary to the adaptor sequence. The amplified sequences are separated and visualized on denaturing on agarose gel electrophoresis.

Applications

• Assess genetic diversity within species or among closely related species.
• Infer population-level phylogenies and biogeographic pattern.
• Generate genetic maps.
• Determine relatedness among cultivars.

Procedure

1.Digestion of total cellular DNA with one or more restriction enzymes and ligation of restriction half-site specific adaptors to all restriction fragments.
2.Selective amplification of some of these fragments with two PCR primers that have corresponding adaptor and restriction site specific sequences.
3.Electrophoretic separation of amplicons on a gel matrix, followed by visualisation of the band pattern.