AFC at GNV.IFAS.UFL.EDU
Fri Nov 4 09:12:59 EST 1994
We have successfully sequenced PCR amplifications of rDNA of individual
mosquitoes (Mol.Bio.Evol. 11:406-416, 1994). We were sequencing the
ITS2, so one would expect some variation between copies. In a few
individuals, there did appear to be polymorphism at certain sites, since
the reads were ambiguous. In general, however, it worked pretty well.
We think that this is a better approach than sequencing individual clones
of PCR products, since then the presence of PCR artifacts is a real
We just starting to sequence some non-transcribed spacers. With these we
will have no choice but to clone and sequence, since there is lots of
length heterogeneity amongst individual copies. That will throw the
different sequences out of phase, which is much worse than ambiguous
reads at a few sites.
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