Erschienen in:
01.09.2014 | Genetics
Improved sensitivity to detect recombination using qPCR for Dyskeratosis Congenita PGD
verfasst von:
Ndeye-Aicha Gueye, Chaim Jalas, Xin Tao, Deanne Taylor, Richard T. Scott Jr., Nathan R. Treff
Erschienen in:
Journal of Assisted Reproduction and Genetics
|
Ausgabe 9/2014
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Excerpt
It has been over two decades since the first preimplantation genetic diagnosis (PGD) for a monogenic disorder was performed [
1], and methods have evolved to include a wide variety of techniques [
2]. Among the most important advances was the incorporation of genotyping of linked informative markers near the mutation in order to avoid misdiagnosis from a phenomenon known as allele drop out (ADO). ADO occurs when two alleles are present, but the PCR-based test only detects one of the two, which can result in misdiagnosis of a monogenic disorder. However, by evaluating nearby linked informative polymorphisms, this type of error can be avoided since it is less likely to occur twice in the same test [
2,
3]. …