Abstract
To identify the transposon insertion sites in a soil actinomycete, Saccharopolyspora spinosa, a genome walking approach, termed SPTA-PCR, was developed. In SPTA-PCR, a simple procedure consisting of TA cloning and a high stringency PCR, following the single primer-mediated, randomly-primed PCR, can eliminate non-target DNA fragments and obtain target fragments specifically. Using SPTA-PCR, the DNA sequence adjacent to the highly conserved region of lectin coding gene in onion plant, Allium chinense, was also cloned.
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