Microsatellite alleles are detected by PCR (polymerase chain reaction) that provides a manifold increase in the number of copies (amplification) of a given DNA fragment. The fragment visualization can be reached by two different methods. These are fragment analysis by capillary electrophoresis in denaturing gel and fragment separation in non-denaturing gel with subsequent gel staining. The first method is more accurate and automated, but expensive. The second method is much cheaper but less convenient. It requires manual processing and is presumably less accurate. In this study, we present the results of comparison of the allele typing at nine microsatellite loci using these two methods for one of the species of Pacific salmon, sockeye salmon Oncorhynchus nerka Walbaum. In most cases, both methods give identical fragment sizes or with a constant difference if the alleles are relatively small (not larger than 200–220 bp).
Russian Journal of Genetics – Springer Journals
Published: May 19, 2016
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