In the following report, thermal cycling coupled with random 10-mers as pri
mers was used to construct randomly amplified shotgun libraries (RASLs). Th
is approach allowed shotgun libraries to be constructed from nanogram quant
ities of input DNA. RASLs contained inserts from throughout a target genome
in an unbiased fashion and did not appear to contain chimeric sequences. T
his protocol should be useful for shotgun sequencing the genomes of uncultu
rable organisms and rapidly producing shotgun libraries from cosmids, fosmi
ds, yeast artificial chromosomes (YACs), and bacterial artificial chromosom
es.