gndDb, a Database of Partial gnd Sequences To Assist with Analysis of Escherichia coli Communities Using High-Throughput Sequencing

ABSTRACT The use of culture methods to detect Escherichia coli diversity does not provide sufficient resolution to identify strains present at low levels. Here, we target the hypervariable gnd gene and describe a database containing 534 distinct partial gnd sequences and associated O groups for use with culture-independent E. coli community analysis.