TABLE 1.

Summary of the automated and manual DNA extraction methods used in this study

Extraction method	Vendor	Catalog no.	Principle
MagNA Pure Compact	Roche	03731146001	Lysis buffer and proteinase K treatments, followed by binding of nucleic acid to magnetic glass particles, magnetic separation of nucleic acid, and elution at high temperatures
MagNA Pure LC	Roche	12236931001	Same as for the MagNA Pure Compact instrument
IT 1-2-3 DNA sample purification kit	Idaho Technology	3800	Lysis buffer and bead beating, followed by binding of DNA to filter membrane, and contaminants pass through spin column
MasterPure complete DNA and RNA purification kit	Epicentre	MC85200	Lysis buffer and proteinase K treatments, followed by RNase A treatment, protein precipitation, and DNA precipitation
QIAamp DNA blood mini kit	Qiagen	51106	Proteinase K treatment, followed by binding of DNA to silica gel membrane, and contaminants pass through spin column
UltraClean microbial DNA isolation kit	MoBio	12224-250	Lysis buffer and bead beating, followed by binding of DNA to silica gel membrane, and contaminants pass through spin column