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Liehr T, Weise A, Mrasek K, Ziegler M, Padutsch N, Wilhelm K, Al-Rikabi A. Recombinant Chromosomes Resulting From Parental Pericentric Inversions-Two New Cases and a Review of the Literature. Front Genet 2019; 10:1165. [PMID: 31798640 PMCID: PMC6868022 DOI: 10.3389/fgene.2019.01165] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 10/23/2019] [Indexed: 01/23/2023] Open
Abstract
A balanced pericentric inversion is normally without any clinical consequences for its carrier. However, there is a well-known risk of such inversions to lead to unbalanced offspring. Inversion-loop formation is the mechanism which may lead to duplication or deletion of the entire or parts of the inverted segment in the offspring. However, also partial deletion and duplication may be an effect of a parental inversion, depending on the size of the inversion and the uneven number of crossing over events, also suggested to be due to an inversion loop. Here we describe two new cases of recombinant chromosomes and provide a review of the literature of comparable cases. Interestingly, this survey confirmed the general genetic principle that gain of copy numbers are better tolerated than losses. Furthermore, there is a non-random distribution of all human chromosomes concerning their involvement in recombinant formation, which is also discussed.
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Affiliation(s)
- Thomas Liehr
- Institute of Human Genetics, Jena University Hospital, Friedrich Schiller University, Jena, Germany
| | - Anja Weise
- Institute of Human Genetics, Jena University Hospital, Friedrich Schiller University, Jena, Germany
| | - Kristin Mrasek
- Institute of Human Genetics, Jena University Hospital, Friedrich Schiller University, Jena, Germany
| | - Monika Ziegler
- Institute of Human Genetics, Jena University Hospital, Friedrich Schiller University, Jena, Germany
| | - Niklas Padutsch
- Institute of Human Genetics, Jena University Hospital, Friedrich Schiller University, Jena, Germany
| | - Kathleen Wilhelm
- Institute of Human Genetics, Jena University Hospital, Friedrich Schiller University, Jena, Germany
| | - Ahmed Al-Rikabi
- Institute of Human Genetics, Jena University Hospital, Friedrich Schiller University, Jena, Germany
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Rigola MA, Baena N, Català V, Lozano I, Gabau E, Guitart M, Fuster C. A 11.7-Mb Paracentric Inversion in Chromosome 1q Detected in Prenatal Diagnosis Associated with Familial Intellectual Disability. Cytogenet Genome Res 2015; 146:109-114. [PMID: 26280689 DOI: 10.1159/000437127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2015] [Indexed: 11/19/2022] Open
Abstract
Most apparent balanced chromosomal inversions are usually clinically asymptomatic; however, infertility, miscarriages, and mental retardation have been reported in inversion carriers. We present a small family with a paracentric inversion 1q42.13q43 detected in routine prenatal diagnosis. Molecular cytogenetic methods defined the size of the inversion as 11.7 Mb and excluded other unbalanced chromosomal alterations in the patients. Our findings suggest that intellectual disability is caused by dysfunction, disruption, or position effects of genes located at or near the breakpoints involved in this inversion.
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Affiliation(s)
- Maria A Rigola
- Unitat de Biologia Cel∙lular i Genètica Mèdica, Departament de Biologia Cel∙lular, Fisiologia i Immunologia, Facultat de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
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Paskulin GA, Riegel M, Machado Rosa RF, Graziadio C, Gazzola Zen PR. Interstitial deletion of 7q31.32 → q33 secondary to a paracentric inversion of a maternal chromosome 7. Eur J Med Genet 2010; 54:181-5. [PMID: 21056704 DOI: 10.1016/j.ejmg.2010.10.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Accepted: 10/29/2010] [Indexed: 11/29/2022]
Abstract
Carriers of paracentric inversions (PAIs) are usually asymptomatic. However, such inversions may lead to the formation of recombinant gametes and then to an abnormal gestation. Here we report a girl with a 7q31.32 → q33 deletion secondary to a maternal PAI of chromosome 7. This finding was confirmed through FISH and whole-genome array-CGH analyses. The deficiency of the chromosome 7 observed in our patient was never described before and we did not find any known gene localized within the deficient segment that could be related to her findings of hypoplastic iliac bones, hypoplastic labia minora and postaxial polydactyly. This case highlights the fact that rare viable recombinants can be developed from PAIs, an issue that must be discussed in the genetic counseling.
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Affiliation(s)
- Giorgio Adriano Paskulin
- Clinical Genetics, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA) and Complexo Hospitalar Santa Casa de Porto Alegre (CHSCPA), RS, Brazil
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Bhatt S, Moradkhani K, Mrasek K, Puechberty J, Manvelyan M, Hunstig F, Lefort G, Weise A, Lespinasse J, Sarda P, Liehr T, Hamamah S, Pellestor F. Breakpoint mapping and complete analysis of meiotic segregation patterns in three men heterozygous for paracentric inversions. Eur J Hum Genet 2009; 17:44-50. [PMID: 18685557 PMCID: PMC2985954 DOI: 10.1038/ejhg.2008.144] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Revised: 06/23/2008] [Accepted: 07/02/2008] [Indexed: 01/30/2023] Open
Abstract
Paracentric inversions (PAIs) are structural chromosomal rearrangements generally considered to be harmless. To date, only a few studies have been performed concerning the meiotic segregation of these rearrangements, using either the human-hamster fertilization system or fluorescence in situ hybridization (FISH) with centromeric or telomeric DNA probes. To improve the assessment of imbalances in PAI, we present a new strategy based on FISH assay using multiple bacterial artificial chromosome probes, which allow a precise localization of chromosome break points and the identification of all meiotic products in human sperm. Sperm samples of three cases with PAI were investigated: an inv(5)(q13.2q33.1), an inv(9)(q21.2q34.13) and an inv(14)(q23.2q32.13). The frequencies of spermatozoa with inverted chromosomes were 44.7% in inv(5), 42.7% in inv(9) and 46.7% in inv(14). The global incidences of unbalanced complements were 9.7, 12.6 and 3.7% in inv(5), inv(9) and inv(14), respectively. This report is the first study providing a detailed description of meiotic segregation patterns in human sperm by using a sperm FISH approach. This study demonstrates that the detailed analysis of segregation in PAI may provide important data for both genetic analysis and counseling of inversion carriers.
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Affiliation(s)
- Samarth Bhatt
- CHU Montpellier, Institute for Research in Biotherapy, Hôpital Saint-Eloi, Montpellier, France
- INSERM U847, Montpellier, France
| | - Kamran Moradkhani
- CHU Montpellier, Service de Génétique Médicale, Hôpital Arnaud de Villeuneuve, Montpellier, France
| | - Kristin Mrasek
- Institute of Human Genetics and Anthropology, Jena, Germany
| | - Jacques Puechberty
- CHU Montpellier, Service de Génétique Médicale, Hôpital Arnaud de Villeuneuve, Montpellier, France
| | - Marina Manvelyan
- Institute of Human Genetics and Anthropology, Jena, Germany
- Department of Genetics and Laboratory of Cytogenetics, State University, Yerevan, Armenia
| | | | - Genevieve Lefort
- CHU Montpellier, Service de Génétique Médicale, Hôpital Arnaud de Villeuneuve, Montpellier, France
| | - Anja Weise
- Institute of Human Genetics and Anthropology, Jena, Germany
| | | | - Pierre Sarda
- CHU Montpellier, Service de Génétique Médicale, Hôpital Arnaud de Villeuneuve, Montpellier, France
| | - Thomas Liehr
- CHU Montpellier, Service de Génétique Médicale, Hôpital Arnaud de Villeuneuve, Montpellier, France
| | - Samir Hamamah
- CHU Montpellier, Institute for Research in Biotherapy, Hôpital Saint-Eloi, Montpellier, France
- INSERM U847, Montpellier, France
- Université Montpellier I, UFR de Médecine, Montpellier, France
- CHU Montpellier, Unité Biologie Clinique d'AMP/DPI, Hôpital Arnaud de Villeuneuve, Montpellier, France
| | - Franck Pellestor
- CHU Montpellier, Institute for Research in Biotherapy, Hôpital Saint-Eloi, Montpellier, France
- INSERM U847, Montpellier, France
- Université Montpellier I, UFR de Médecine, Montpellier, France
- CHU Montpellier, Unité Biologie Clinique d'AMP/DPI, Hôpital Arnaud de Villeuneuve, Montpellier, France
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Basinko A, Douet-Guilbert N, Le Bris MJ, Parent P, Ansquer H, Morel F, De Braekeleer M. Molecular cytogenetic characterization of an 8p22-8p23.2 duplication derived from a maternal intrachromosomal insertion in a child with congenital heart malformation, delayed puberty, and learning disabilities. Am J Med Genet A 2008; 146A:2950-4. [DOI: 10.1002/ajmg.a.32522] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Manvelyan M, Hunstig F, Bhatt S, Mrasek K, Pellestor F, Weise A, Simonyan I, Aroutiounian R, Liehr T. Chromosome distribution in human sperm - a 3D multicolor banding-study. Mol Cytogenet 2008; 1:25. [PMID: 19014589 PMCID: PMC2613144 DOI: 10.1186/1755-8166-1-25] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2008] [Accepted: 11/14/2008] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Nuclear architecture studies in human sperm are sparse. By now performed ones were practically all done on flattened nuclei. Thus, studies close at the in vivo state of sperm, i.e. on three-dimensionally conserved interphase cells, are lacking by now. Only the position of 14 chromosomes in human sperm was studied. RESULTS Here for the first time a combination of multicolor banding (MCB) and three-dimensional analysis of interphase cells was used to characterize the position and orientation of all human chromosomes in sperm cells of a healthy donor. The interphase nuclei of human sperm are organized in a non-random way, driven by the gene density and chromosome size. CONCLUSION Here we present the first comprehensive results on the nuclear architecture of normal human sperm. Future studies in this tissue type, e.g. also in male patients with unexplained fertility problems, may characterize yet unknown mechanisms of infertility.
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Affiliation(s)
- Marina Manvelyan
- Department of Genetic and Laboratory of Cytogenetics, State University, Yerevan, Armenia.
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Vialard F, Pellestor F. Intérêt de la cytogénétique des gamètes humains : résultats et perspectives. ACTA ACUST UNITED AC 2008; 56:388-99. [DOI: 10.1016/j.patbio.2008.04.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2008] [Accepted: 04/16/2008] [Indexed: 10/22/2022]
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Thomas NS, Bryant V, Maloney V, Cockwell AE, Jacobs PA. Investigation of the origins of human autosomal inversions. Hum Genet 2008; 123:607-16. [PMID: 18470537 DOI: 10.1007/s00439-008-0510-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2008] [Accepted: 05/01/2008] [Indexed: 11/26/2022]
Abstract
A significant proportion of both pericentric and paracentric inversions have recurrent breakpoints and so could either have arisen through multiple independent events or be identical by descent (IBD) with a single common ancestor. Of two common variant inversions previously studied, the inv(2)(p11q13) was genuinely recurrent while the inv(10)(p11.2q21.2) was IBD in all cases tested. Excluding these two variants we have ascertained 257 autosomal inversion probands at the Wessex Regional Genetics Laboratory. There were 104 apparently recurrent inversions, representing 35 different breakpoint combinations and we speculated that at least some of these had arisen on more than one occasion. However, haplotype analysis identified no recurrent cases among eight inversions tested, including the variant inv(5)(p13q13). The cases not IBD were shown to have different breakpoints at the molecular cytogenetic level. No crossing over was detected within any of the inversions and the founder haplotypes extended for variable distances beyond the inversion breakpoints. Defining breakpoint intervals by FISH mapping identified no obvious predisposing elements in the DNA sequence. In summary the vast majority of human inversions arise as unique events. Even apparently recurrent inversions, with the exception of the inv(2)(p12q13), are likely to be either derived from a common ancestor or to have subtly different breakpoints. Presumably the lack of selection against most inversions allows them to accumulate and disperse amongst different populations over time.
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Affiliation(s)
- N Simon Thomas
- Wessex Regional Genetics Laboratory, Salisbury NHS Foundation Trust, Salisbury District Hospital, Salisbury SP2 8BJ, UK.
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Manvelyan M, Hunstig F, Mrasek K, Bhatt S, Pellestor F, Weise A, Liehr T. Position of chromosomes 18, 19, 21 and 22 in 3D-preserved interphase nuclei of human and gorilla and white hand gibbon. Mol Cytogenet 2008; 1:9. [PMID: 18471270 PMCID: PMC2390566 DOI: 10.1186/1755-8166-1-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2007] [Accepted: 04/29/2008] [Indexed: 11/16/2022] Open
Abstract
Background Even though comparative nuclear architecture studies in hominoids are sparse, nuclear chromosome architecture was shown to be conserved during hominoid evolution. Thus, it is suspected that yet unknown biological mechanisms must underlie this observation. Results Here for the first time a combination of multicolor banding (MCB) and three-dimensional analysis of interphase cells was used to characterize the position and orientation of human chromosomes #18, #19, #21 and #22 and their homologues in primate B-lymphocytic cells. In general, our data is in concordance with previous studies. The position of the four studied human chromosomes and their homologues were conserved during primate evolution. However, comparison of interphase architecture in human B-lymphocytic cells and sperm revealed differences of localization of acrocentric chromosomes. The latter might be related to the fact that the nucleolus organizing region is not active in sperm. Conclusion Studies in different tissue types may characterize more – potentially biologically relevant differences in nuclear architecture.
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Affiliation(s)
- Marina Manvelyan
- Institute of Human Genetics and Anthropology, Kollegiengasse 10, D-07743 Jena, Germany.
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