Chromosome
Homologous recombination between HERVs causes duplications in the AZFa region of men accidentally exposed to cesium-137 in Goi�¢nia
Authors: J.T. Arruda1, D.M. Silva1,2, C.C. Silva1,2, K.K.V.O. Moura1 and A.D. da Cruz1,2
In September 1987, in Goiânia, Brazil, one of the most serious radiological accidents occurred at a radiation therapy unit involving a source of cesium-137. The current study examined the occurrence of possible germline mutations at the AZF region of the exposed men and in their male offspring. Genomic DNA samples of 16 individuals were analyzed for.. Read More»
- Genet. Mol. Res. 7(4):
Association among XRCC1, XRCC3, and BLHX gene polymorphisms and chromosome instability in lymphocytes from patients with endometriosis and ovarian cancer
Authors: M.S. Monteiro, D.B. Vilas Boas, C.B. Gigliotti and D.M.F. Salvadori
Endometriosis is a complex disease that has both benign and malignant characteristics. It affects 5-10% of women of reproductive age. Studies have demonstrated the existence of common genetic changes in endometriosis and ovarian cancer, suggesting a possible association between these 2 diseases. However, the mechanisms that le.. Read More»
- Genet. Mol. Res. 13(1):
- 2014.January.28.9
- DOI:
- 10.4238/2014.January.28.9
Root tip chromosome karyotype analysis of hyacinth cultivars
Authors: F.R. Hu, H.H. Liu, F. Wang, R.L. Bao and G.X. Liu
Karyotype analysis in plants helps to reveal the affinity relationships of species and their genetic evolution. The current study aimed to observe chromosome karyotypes and structures of Hyacinthus orientalis. Twenty hyacinth cultivars were introduced from Holland, and their water-cultivated root tips were used as experimental samples. A solution of colch.. Read More»
- Genet. Mol. Res. 14(3):
- http://dx.doi.org/2015.September.9.24
- DOI:
- http://dx.doi.org/10.4238/2015.September.9.24
Chromosome instability in industrial strains of Saccharomyces cerevisiae batch cultivated under laboratory conditions
Authors: Lucena BTL, Silva-Filho EA, Coimbra MRM, Morais JOF, Simoes DA and Morais Jr. MA
Industrial ethanol fermentation is a complex microbiological process to which yeast cells must adapt for survival. One of the mechanisms for adaptation is thought to involve chromosome rearrangements. We found that changes in chromosome banding patterns measured by pulsed-field gel electrophoresis can also be produced in labor.. Read More»
- Genet. Mol. Res. 6(4):
Chromosome heteromorphisms are more frequent in couples with recurrent abortions
Authors: H. Akbas H. �°si D. Oral A. Turky�±lmaz S. Kalkanl�±-Ta�� S. Simsek M. Balkan M.N. Sakar M. Fidanboy M.N. Alp T. Budak
Chromosomal heteromorphism is considered a variant of a normal karyotype, but it is more frequent in couples with repeated miscarriages. We investigated chromosomal heteromorphism in couples with repeated miscarriages in comparison with a control group. A total of 455 couples who applied to our genetic diagnosis laboratory in Diyarbakir, Turkey, were evaluat.. Read More»
- Genet. Mol. Res. 11(4):
- 2012.November.12.1
- DOI:
- 10.4238/2012.November.12.1
FISH, PCR and cytogenetic characterization in a girl with ambiguous genitalia and karyotype mos46,X,iso(Y)(qter�p11.3::p11.3�qter)[80]/ 45,X[17]/46,X,+mar[3]
Authors: S.R.F. Pereira, A.C.N. Pereira, M.T.V.L. Souza and M.R.B.P. Ramos
A cytogenetic study was carried out in a girl with virilized external genitalia , whoshowed a karyotype containing a isochromosome in mosaic form: mos46,X,iso(Y)(qter→p11.3::p11.3→qter)[80]/45,X[17]/46,X,+mar[3]. T The chromosome aberrations were confirmed by fluorescence in situ hybridization analysis, with both whole chromosome paint Y probe a.. Read More»
- Genet. Mol. Res. 7(4):
- vol7-4gmr483
- DOI:
- 10.4238/vol7-4gmr483
Y-STR genetic screening by high-resolution melting analysis
Authors: J.Q. Deng1*, B.Q. Liu2*, Y. Wang3, W. Liu4, J.F. Cai5, R. Long1 and W.H. Li1
Currently, the widely used automated capillary electrophoresis-based short tandem repeat (STR) genotyping method for genetic screening in forensic practice is laborious, time-consuming, expensive, and technically challenging in some cases. Thus, new molecular-based strategies for conclusively identifying forensically relevant biological evidence are requi.. Read More»
- Genet. Mol. Res. 15(1):
- gmr.1501726605/02/2016
- DOI:
- 10.4238/gmr.1501726605/02/2016
Cytogenetic analysis and description of the sexual chromosome determination system ZZ/ZW of species of the fish genus Serrapinnus (Characidae, Cheirodontinae)
Authors: Santi-Rampazzo AP, Nishiyama PB, Ferreira PEB and Martins-Santos IC
Four populations of Serrapinnus notomelas and one population of Serrapinnus sp.1, both belonging to the subfamily Cheirodontinae, were analyzed by Giemsa and silver nitrate impregnation techniques. We found 2n = 52 chromosomes for all populations, with interspecific differences in the karyotype formula; S. notomelas showed 16m.. Read More»
- Genet. Mol. Res. 6(3):
Chromosome number, microsporogenesis, microgametogenesis, and pollen viability in the Brazilian native grass Mesosetum chaseae (Poaceae)
Authors: L.A.C. Silva M.S. Pagliarini S.A. Santos N. Silva V.F. Souza
The genus Mesosetum is a primarily South American genus with 42 species. Mesosetum chaseae, regionally known as âÂ?Â?grama-do-cerradoâÂ?Â?, is abundant in the Pantanal Matogrossense (Brazil); it is a valuable resource for livestock and for environmental conservation. We collected specimens from the Nhecolandia sub-region of the Brazilian Pantanal, located .. Read More»
- Genet. Mol. Res. 11(4):
- 2012.September.12.1
- DOI:
- 10.4238/2012.September.12.1
Heteropicnotic chromatin and nucleolar activity in meiosis and spermiogenesis of Limnogonus aduncus (Heteroptera, Gerridae): a stained nucleolar organizing region that can serve as a model for studying chromosome behavior
Authors: M.M.U. Castanhole, L.L.V. Pereira, H.V. Souza, H.E.M.C. Bicudo, L.A.A. Costa and M.M. Itoyama
Males of Limnogonus aduncus were found to have the sex chromosome system X0 and chromosome number 2n = 23 (22A + X0). Testis cells were stained with lacto-acetic orcein and silver nitrate so that changes in the morphology and degree of staining of the heteropicnotic chromatin and the nucleolar material could be observed during meiosis and spermiogenesis. .. Read More»
- Genet. Mol. Res. 7(4):
- vol7-4gmr527
- DOI:
- 10.4238/vol7-4gmr527