César Paz-Y-Miño, Ramón Miguel Vargas-Vera, Martha Verónica Placencia-Ibadango, Kalid Stefano Vargas-Silva, Juan Luis García-Hernández, Thalía Balarezo-Díaz, Paola E Leone
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Detection of regions of homozygosity in an unusual case of frontonasal dysplasia.
We present the case of a 7-year-old Ecuadorian mestizo girl with multiple orofacial malformations. The patient is the product of a first-degree relationship (father-daughter). A cytogenetic study revealed a normal karyotype. The genetic mapping array study identified 0.73 Gb of alterations, 727,087,295 bp involved in regions of homozygosity (ROH) in all chromosomes (25.2% of the genome) and 764,028 bp in gains in chromosomes 9 and 14. Genes from the TGFB, BMP, FGF, SHH and WNT families, among others, were identified in the ROH. They are related to craniofacial development and their protein products showed a strong association in the interactome analysis.
期刊介绍：
Molecular Cytogenetics encompasses all aspects of chromosome biology and the application of molecular cytogenetic techniques in all areas of biology and medicine, including structural and functional organization of the chromosome and nucleus, genome variation, expression and evolution, chromosome abnormalities and genomic variations in medical genetics and tumor genetics.
Molecular Cytogenetics primarily defines a large set of the techniques that operate either with the entire genome or with specific targeted DNA sequences. Topical areas include, but are not limited to:
-Structural and functional organization of chromosome and nucleus-
Genome variation, expression and evolution-
Animal and plant molecular cytogenetics and genomics-
Chromosome abnormalities and genomic variations in clinical genetics-
Applications in preimplantation, pre- and post-natal diagnosis-
Applications in the central nervous system, cancer and haematology research-
Previously unreported applications of molecular cytogenetic techniques-
Development of new techniques or significant enhancements to established techniques.
This journal is a source for numerous scientists all over the world, who wish to improve or introduce molecular cytogenetic techniques into their practice.
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