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This book focus on genetic diagnostics for Uniparental Disomy (UPD), a chromosomal disorder defined by the exceptional presence of a chromosome pair derived from only one parent, which leads to a group of rare diseases in humans. First the molecular and cytogenetic background of UPD is described in detail; subsequently, all available information of the various chromosomal origins and the latest findings on genotype-phenotype correlations and clinical consequences are discussed.

Numerous personal reports from families with a child suffering from a UPD-induced syndrome serve to...

This manual offers detailed protocols for fluorescence in situ hybridization (FISH) and comparative genomic hybridization approaches, which have been successfully used to study various aspects of genomic behavior and alterations. Methods using different probe and cell types, tissues and organisms, such as mammalians, fish, amphibians (including lampbrush-chromosomes), insects, plants and microorganisms are described in 57 chapters. In addition to multicolor FISH procedures and special applications such as the characterization of marker chromosomes, breakpoints, cryptic aberrations, nuclear...

Benign & Pathological Chromosomal Imbalances systematically clarifies the disease implications of cytogenetically visible copy number variants (CG-CNV) using cytogenetic assessment of heterochromatic or euchromatic DNA variants. While variants of several megabasepair can be present in the human genome without clinical consequence, visually distinguishing these benign areas from disease implications does not always occur to practitioners accustomed to costly molecular profiling methods such as FISH, aCGH, and NGS.

As technology-driven approaches like FISH and aCGH have yet to...

Human beings normally have a total of 46 chromosomes, with each chromosome present twice, apart from the X and Y chromosomes in males. Some three million people worldwide, however, have 47 chromosomes: they have a small supernumerary marker chromosome (sSMC) in addition to the 46 normal ones. This sSMC can originate from any one of the 24 human chromosomes and can have different shapes. Approximately one third of sSMC carriers show clinical symptoms, while the remaining two thirds manifest no phenotypic effects.

This guide represents the first book ever published on this topic. It...