Abstract:
BACKGROUND:Meiotic chromosome preparation is a key step in plant meiotic research. Pollen mother cell (PMC) wall elimination is beneficial to cytogenetic experimental procedures. Without wall interference, these procedures are easier and more successful. In existing methods it is difficult to eliminate PMC walls completely and uniformly. In this paper, we present an improved method for digesting PMC walls, and one for providing massive chromosomal spreads on a slide for other cytogenetic experimental procedures. RESULTS:Three plants were selected to exhibit the modified meiotic chromosome preparation method. PMCs were dispersed as single cells and incubated in a mixed enzyme solution (3 % cellulose + 0.3 % pectinase + 1 % snailase) for 1.5-2.5 h. In total, 28.28 % cells were lost during this process. There were 800-1900 spreads on every slide and no PMC wall interference was found on any of the slides. The spreads were also evenly distributed on the slides. More spreads were obtained when PMC and protoplast densities in the suspension were increased. All three plants' spreads were successfully used to locate a 5 s rDNA conserved sequence. The Nicotiana hybrid's spreads were successfully used to identify the hybrid's parental genome. CONCLUSION:This is an alternative method for meiotic chromosome preparation. Through this method, PMC walls can be completely and uniformly eliminated, and hundreds of spreads on every slide can be obtained. These spreads can be successfully used for DNA in situ hybridization.
journal_name
Mol Cytogenetjournal_title
Molecular cytogeneticsauthors
Dang J,Zhao Q,Yang X,Chen Z,Xiang S,Liang Gdoi
10.1186/s13039-015-0184-xsubject
Has Abstractpub_date
2015-10-24 00:00:00pages
80issn
1755-8166pii
184journal_volume
8pub_type
杂志文章abstract::The 2016 revision to the World Health Organization classification of myeloid neoplasms and acute leukemia recognizes a distinct class of myeloid and lymphoid tumors with eosinophilia-related proliferations associated with specific gene rearrangements, one of which involves rearrangements of platelet-derived growth fac...
journal_title:Molecular cytogenetics
pub_type: 杂志文章
doi:10.1186/s13039-018-0405-1
更新日期:2018-10-19 00:00:00
abstract:BACKGROUND:Deletions in Xq21 cause various congenital defects in males including choroideremia, deafness and mental retardation, depending on their size and gene content. Until now only a limited number of patients with Xq21 deletions has been reported. CASE PRESENTATION:Here we describe a 17-year-old male with choroi...
journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-017-0324-6
更新日期:2017-06-14 00:00:00
abstract:Background:Catastrophic chromosomal event known as chromothripsis was proven to be a significant hallmark of poor prognosis in several cancer diseases. While this phenomenon is very rare in among multiple myeloma (MM) patients, its presence in karyotype is associated with very poor prognosis. Case presentation:In our ...
journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-018-0357-5
更新日期:2018-01-18 00:00:00
abstract:BACKGROUND:FOXG1 gene mutations have been associated with the congenital variant of Rett syndrome (RTT) since the initial description of two patients in 2008. The on-going accumulation of clinical data suggests that the FOXG1-variant of RTT forms a distinguishable phenotype, consisting mainly of postnatal microcephaly,...
journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-016-0269-1
更新日期:2016-08-02 00:00:00
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journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-015-0119-6
更新日期:2015-02-28 00:00:00
abstract:Background:The most frequent cytogenetic abnormality detected in chronic lymphocytic leukemia (CLL) patients is the presence of a deletion within the chromosome band 13q14. Deletions can be heterogeneous in size, generally encompassing the DLEU1 and DLEU2 genes (minimal deleted region), but at times also including the ...
journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-019-0417-5
更新日期:2019-01-31 00:00:00
abstract:BACKGROUND:Heterochromatic variants of pericentromere of chromosome 9 are reported and discussed since decades concerning their detailed structure and clinical meaning. However, detailed studies are scarce. Thus, here we provide the largest ever done molecular cytogenetic research based on >300 chromosome 9 heteromorph...
journal_title:Molecular cytogenetics
pub_type: 杂志文章
doi:10.1186/1755-8166-6-14
更新日期:2013-04-01 00:00:00
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journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-018-0355-7
更新日期:2018-01-11 00:00:00
abstract:BACKGROUND:Deletion of 13q14 is the most common cytogenetic change in chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) and is detected in about 50 % of patients by fluorescence in situ hybridization (FISH), which can reveal presence of del(13)(q14) and mono- or biallelic deletion status without informa...
journal_title:Molecular cytogenetics
pub_type: 杂志文章
doi:10.1186/s13039-015-0212-x
更新日期:2016-01-06 00:00:00
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journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-019-0440-6
更新日期:2019-06-14 00:00:00
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journal_title:Molecular cytogenetics
pub_type: 杂志文章
doi:10.1186/s13039-020-00491-5
更新日期:2020-06-26 00:00:00
abstract:Background:Copy number variation (CNV) is a complex genomic rearrangement that has been linked to a large number of human diseases. Chromosome 15q13 microduplication is a rare form of CNV, which has been proved to be associated with multiple human disorders; however, the association between chromosome 15q13 microduplic...
journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-019-0437-1
更新日期:2019-05-27 00:00:00
abstract:BACKGROUND:Primary ovarian insufficiency (POI) is defined as a primary ovarian defect characterized by absent menarche (primary amenorrhea), a decrease in the initial primordial follicle number, high follicle-stimulating hormone (FSH) levels and hypoestrogenism. Although the etiology of a majority of POI cases is not y...
journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-015-0154-3
更新日期:2015-07-15 00:00:00
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journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-015-0177-9
更新日期:2015-10-14 00:00:00
abstract:BACKGROUND:Most microdeletions involving chromosome sub-bands 9q33.3-9q34.11 to this point have been detected by analyses focused on STXBP1, a gene known to cause early infantile epileptic encephalopathy 4 and other seizure phenotypes. Loss-of-function mutations of STXBP1 have also been identified in some patients with...
journal_title:Molecular cytogenetics
pub_type: 杂志文章
doi:10.1186/s13039-015-0178-8
更新日期:2015-09-29 00:00:00
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journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-017-0345-1
更新日期:2017-11-15 00:00:00
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journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-019-0460-2
更新日期:2019-11-19 00:00:00
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journal_title:Molecular cytogenetics
pub_type: 杂志文章
doi:10.1186/s13039-016-0241-0
更新日期:2016-04-19 00:00:00
abstract:Objective:Meningiomas are among the most frequent intracranial tumors. Although the majority of meningiomas can be cured by surgical resection, up to 20% of the patients develop an aggressive clinical course with tumor recurrence or progressive disease.Cytogenetically, meningiomas frequently harbour a normal karyotype ...
journal_title:Molecular cytogenetics
pub_type: 杂志文章
doi:10.1186/s13039-019-0434-4
更新日期:2019-05-24 00:00:00
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journal_title:Molecular cytogenetics
pub_type: 杂志文章
doi:10.1186/1755-8166-1-7
更新日期:2008-04-21 00:00:00
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journal_title:Molecular cytogenetics
pub_type: 杂志文章
doi:10.1186/1755-8166-4-7
更新日期:2011-02-28 00:00:00
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journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-020-00500-7
更新日期:2020-07-23 00:00:00
abstract:BACKGROUND:Chronic myeloid leukemia (CML) is genetically characterized by the occurrence of a reciprocal translocation t(9;22)(q34;q11), resulting in a BCR/ABL gene fusion on the derivative chromosome 22, i.e. the Philadelphia (Ph) chromosome. During CML progression 60-80% of the cases acquire additional genetic change...
journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-014-0089-0
更新日期:2014-11-29 00:00:00
abstract:BACKGROUND:To develop a novel preimplantation genetic screening (PGS) test using next generation sequencing(NGS) as a alternative to current array comparative genomic hybridization (array CGH) method for detection of small segmental translocations in two patients with repeated implantation failure (RIF) and recurrent m...
journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-015-0207-7
更新日期:2015-12-30 00:00:00
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 mul...
journal_title:Molecular cytogenetics
pub_type: 杂志文章
doi:10.1186/1755-8166-1-9
更新日期:2008-04-29 00:00:00
abstract:UNLABELLED:Barrett's esophagus (BE) is an asymptomatic, pre-malignant condition of the esophagus that can progress to esophageal adenocarcinoma (EAC). BE arises typically in individuals with long-standing gastroesophageal reflux disease (GERD). The neoplastic progression of BE has been extensively studied histologicall...
journal_title:Molecular cytogenetics
pub_type: 杂志文章
doi:10.1186/1755-8166-5-43
更新日期:2012-11-29 00:00:00
abstract:BACKGROUND:A new chimerism analysis based on automated interphase fluorescence in situ hybridization (FISH) evaluation was established to detect residual cells after allogene sex-mismatched bone marrow or blood stem-cell transplantation.Cells of 58 patients were characterized as disease-associated due to presence of a ...
journal_title:Molecular cytogenetics
pub_type: 杂志文章
doi:10.1186/1755-8166-2-12
更新日期:2009-05-29 00:00:00
abstract:BACKGROUND:Angelman syndrome is a rare neurogenetic disorder that results in intellectual and developmental disturbances, seizures, jerky movements and frequent smiling. Angelman syndrome is caused by two genetic disturbances: either genes on the maternally inherited chromosome 15 are deleted or inactivated or two pate...
journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/1755-8166-6-35
更新日期:2013-09-08 00:00:00
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journal_title:Molecular cytogenetics
pub_type:
doi:10.1186/s13039-018-0411-3
更新日期:2018-12-20 00:00:00
abstract:BACKGROUND:The heterogeneous group of small supernumerary marker chromosomes (sSMCs) presents serious counseling problems, especially if they are present de novo and diagnosed prenatally. The incidence has been estimated at 1 in 1000 prenatal samples. We present a case of mosaic sSMC diagnosed prenatally after amniocen...
journal_title:Molecular cytogenetics
pub_type: 杂志文章
doi:10.1186/1755-8166-2-1
更新日期:2009-01-07 00:00:00