Journal
MOLECULAR GENETICS AND GENOMICS
Volume 291, Issue 2, Pages 513-530Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00438-015-1130-7
Keywords
Mosaicism; Mosaic ratio; Germline; Somatic; Constitutional; NGS
Funding
- Polish Ministry of Science and Higher Education [NN301 238836]
- National Science Centre in Poland [2012/05/E/NZ5/02127, 2013/10/M/NZ2/00283]
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Mosaicism refers to the presence in an individual of normal and abnormal cells that are genotypically distinct and are derived from a single zygote. The incidence of mosaicism events in the human body is underestimated as the genotypes in the mosaic ratio, especially in the low-grade mosaicism, stay unrevealed. This review summarizes various research outcomes and diagnostic questions in relation to different types of mosaicism. The impact of both tested biological material and applied method on the mosaicism detection rate is especially highlighted. As next-generation sequencing technologies constitute a promising methodological solution in mosaicism detection in the coming years, revisions in current diagnostic protocols are necessary to increase the detection rate of the unrevealed mosaicism events. Since mosaicism identification is a complex process, numerous examples of multistep mosaicism investigations are presented and discussed.
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