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Updated: May 31, 2026

Extraction of High Molecular Weight Genomic DNA from Soils and Sediments
Published on: November 10, 2009
Metagenomic comparison of direct and indirect soil DNA extraction approaches
Tom O Delmont1, Patrick Robe, Ian Clark
1Environmental Microbial Genomics, Ecole Centrale de Lyon, Université de Lyon, 36 avenue Guy de Collongue, 69134 Ecully, France.
Abstract:
Full pyrosequencing runs of both direct-extracted (high yield, low DNA size) and indirect-extracted DNA (low yield, high DNA size) from the same prairie soil show that the sequence distribution of the majority of the metabolic functions and species detected were statistically similar. Although some microbial functions differed at the 95% confidence interval in bootstrap analyses, the overall functional diversity was the same.
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