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Selection of enzymes for terminal restriction fragment length polymorphism analysis of fungal internally transcribed spacer sequences.

ABSTRACT: Terminal restriction fragment length polymorphism (TRFLP) profiling of the internally transcribed spacer (ITS) ribosomal DNA of unknown fungal communities is currently unsupported by a broad-range enzyme-choosing rationale. An in silico study of terminal fragment size distribution was therefore performed following virtual digestion (by use of a set of commercially available 135 type IIP restriction endonucleases) of all published fungal ITS sequences putatively annealing to primers ITS1 and ITS4. Different diversity measurements were used to rank primer-enzyme pairs according to the richness and evenness that they showed. Top-performing pairs were hierarchically clustered to test for data dependency. The enzyme set composed of MaeII, BfaI, and BstNI returned much better results than randomly chosen enzyme sets in computer simulations and is therefore recommended for in vitro TRFLP profiling of fungal ITSs.

SUBMITTER: Alvarado P 

PROVIDER: S-EPMC2708443 | biostudies-literature | 2009 Jul

REPOSITORIES: biostudies-literature

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Selection of enzymes for terminal restriction fragment length polymorphism analysis of fungal internally transcribed spacer sequences.

Alvarado Pablo P   Manjón Jose L JL  

Applied and environmental microbiology 20090522 14

Terminal restriction fragment length polymorphism (TRFLP) profiling of the internally transcribed spacer (ITS) ribosomal DNA of unknown fungal communities is currently unsupported by a broad-range enzyme-choosing rationale. An in silico study of terminal fragment size distribution was therefore performed following virtual digestion (by use of a set of commercially available 135 type IIP restriction endonucleases) of all published fungal ITS sequences putatively annealing to primers ITS1 and ITS4  ...[more]

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