Genotyping errors with the polymerase chain reaction.
Genotyping errors with the polymerase chain reaction.
复制标题
聚合酶链式反应的基因分型错误。
DOI:
10.1056/nejm199001043220117
复制
发表时间:
1990
期刊:
影响因子:
--
通讯作者:
W. O'Brien
中科院分区:
文献类型:
--
作者:
F. Fujimura;H. Northrup;A. Beaudet;W. O'Brien
To the Editor: We wish to describe a situation in which use of the polymerase chain reaction (PCR) can lead to genotyping errors. We have previously reported conditions for the analysis of a restriction-fragment–length polymorphism (RFLP) at the D7S8 locus on chromosome 7 using amplification of DNA followed by digestion with the restriction enzyme PstI.* While using this method for linkage diagnosis of cystic fibrosis, we encountered a patient who appeared to be homozygous for the absence of the restriction site according to the PCR; the patient was heterozygous, however, because Southern blot analysis of DNA revealed two bands,.