Abstract
Transposon insertion site sequencing (TIS) is a technique that
determines the insertion profile of a transposon mutant library
by massive parallel sequencing of transposon-genomic
DNA junctions. Because the transposon insertion profile reflects
the abundance of each mutant in the library, it provides
information to assess the fitness contribution of each genetic
locus of a bacterial genome in a specific growth condition or
strain background. Although introduced only about a dozen
years ago, TIS has become an important tool in bacterial genetics
that provides clues to study biological functions and
regulatory mechanisms. Here, I describe a protocol for generating
high density transposon insertion mutant libraries
and preparing Illumina sequencing samples for mapping the
transposon junctions of the transposon mutant libraries using
Pseudomonas aeruginosa as an example.
Citations
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