Nucleic Acids Research, Vol 26, Issue 3 854-856, Copyright © 1998 by Oxford University Press
K Malhotra, L Foltz, WC Mahoney and PA Schueler
Differential display of mRNA is a simple, sensitive and powerful method to
identify differentially expressed gene fragments. The main drawback of
differential display is the lack of reproducibility and the inability to
read and compare complex gels. This issue results from employing
unoptimized primer combinations and non-specific amplification, most likely
due to unavoidable low annealing temperatures. In order to display most of
the expressed transcripts (80- 120 bands/lane), 26 different 5' primers
were used in conjunction with nine different 3' poly (dT) primers. These
primer combinations, used with the optimized annealing temperature for each
set of primers, produced highly reproducible bands. BSA has a direct effect
on the number of bands resolved. Variations in ramping time (9-40 s) had
little or no effect on the resolution and reproducibility of differential
display.
ARTICLES
Interaction and effect of annealing temperature on primers used in differential display RT-PCR
Boehringer Mannheim Group, Corange Technology Office, 4300 Hacienda Drive, Pleasanton, CA 94588-2722, USA.
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