Human molecular cytogenetics: from cells to nucleotides

The field of cytogenetics has focused on studying the number, structure, function and origin of chromosomal abnormalities and the evolution of chromosomes. The development of fluorescent molecules that either directly or via an intermediate molecule bind to DNA has led to the development of fluoresc...

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Main Author: Mariluce Riegel
Format: Article
Language:English
Published: Sociedade Brasileira de Genética 2014-01-01
Series:Genetics and Molecular Biology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000200006&lng=en&tlng=en
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author Mariluce Riegel
author_facet Mariluce Riegel
author_sort Mariluce Riegel
collection DOAJ
description The field of cytogenetics has focused on studying the number, structure, function and origin of chromosomal abnormalities and the evolution of chromosomes. The development of fluorescent molecules that either directly or via an intermediate molecule bind to DNA has led to the development of fluorescent in situ hybridization (FISH), a technology linking cytogenetics to molecular genetics. This technique has a wide range of applications that increased the dimension of chromosome analysis. The field of cytogenetics is particularly important for medical diagnostics and research as well as for gene ordering and mapping. Furthermore, the increased application of molecular biology techniques, such as array-based technologies, has led to improved resolution, extending the recognized range of microdeletion/microduplication syndromes and genomic disorders. In adopting these newly expanded methods, cytogeneticists have used a range of technologies to study the association between visible chromosome rearrangements and defects at the single nucleotide level. Overall, molecular cytogenetic techniques offer a remarkable number of potential applications, ranging from physical mapping to clinical and evolutionary studies, making a powerful and informative complement to other molecular and genomic approaches. This manuscript does not present a detailed history of the development of molecular cytogenetics; however, references to historical reviews and experiments have been provided whenever possible. Herein, the basic principles of molecular cytogenetics, the technologies used to identify chromosomal rearrangements and copy number changes, and the applications for cytogenetics in biomedical diagnosis and research are presented and discussed.
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spelling doaj.art-97c02cc172d64b8cbb54287b5316924d2022-12-21T17:17:54ZengSociedade Brasileira de GenéticaGenetics and Molecular Biology1678-46852014-01-01371 suppl 119420910.1590/S1415-47572014000200006S1415-47572014000200006Human molecular cytogenetics: from cells to nucleotidesMariluce Riegel0Hospital de ClínicasThe field of cytogenetics has focused on studying the number, structure, function and origin of chromosomal abnormalities and the evolution of chromosomes. The development of fluorescent molecules that either directly or via an intermediate molecule bind to DNA has led to the development of fluorescent in situ hybridization (FISH), a technology linking cytogenetics to molecular genetics. This technique has a wide range of applications that increased the dimension of chromosome analysis. The field of cytogenetics is particularly important for medical diagnostics and research as well as for gene ordering and mapping. Furthermore, the increased application of molecular biology techniques, such as array-based technologies, has led to improved resolution, extending the recognized range of microdeletion/microduplication syndromes and genomic disorders. In adopting these newly expanded methods, cytogeneticists have used a range of technologies to study the association between visible chromosome rearrangements and defects at the single nucleotide level. Overall, molecular cytogenetic techniques offer a remarkable number of potential applications, ranging from physical mapping to clinical and evolutionary studies, making a powerful and informative complement to other molecular and genomic approaches. This manuscript does not present a detailed history of the development of molecular cytogenetics; however, references to historical reviews and experiments have been provided whenever possible. Herein, the basic principles of molecular cytogenetics, the technologies used to identify chromosomal rearrangements and copy number changes, and the applications for cytogenetics in biomedical diagnosis and research are presented and discussed.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000200006&lng=en&tlng=enmolecular cytogeneticsFISHarray-CGHcopy number variationgenomic disorders
spellingShingle Mariluce Riegel
Human molecular cytogenetics: from cells to nucleotides
Genetics and Molecular Biology
molecular cytogenetics
FISH
array-CGH
copy number variation
genomic disorders
title Human molecular cytogenetics: from cells to nucleotides
title_full Human molecular cytogenetics: from cells to nucleotides
title_fullStr Human molecular cytogenetics: from cells to nucleotides
title_full_unstemmed Human molecular cytogenetics: from cells to nucleotides
title_short Human molecular cytogenetics: from cells to nucleotides
title_sort human molecular cytogenetics from cells to nucleotides
topic molecular cytogenetics
FISH
array-CGH
copy number variation
genomic disorders
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000200006&lng=en&tlng=en
work_keys_str_mv AT mariluceriegel humanmolecularcytogeneticsfromcellstonucleotides