Chromosome
Molecular cytogenetic characterization of the Aegilops biuncialis karyotype
Authors: J. Wang W. Zhang H. Zhao F.R. Li Z.G. Wang J. Ji X.Q. Zhang D.W. Wang J.M. Li
Aegilops biuncialis can be hybridized with wheat (Triticum spp) and has been used for wheat breeding and genetic studies. The A. biuncialis karyotype (Ub Ub Mb Mb) was investigated based on three A. biuncialis accessions grown in China. Two pairs of SAT chromosomes were identified as 1Ub and 5Ub, with a karyotype formula of 2n = 4x = 28 = 14m + 10sm + 4st. F.. Read More»
- Genet. Mol. Res. 12(1):
- 2013.March.11.16
- DOI:
- 10.4238/2013.March.11.16
Identification of novel and useful EST-SSR markers from de novo transcriptome sequence of wheat (Triticum aestivum L.)
Authors: Z.J. Yang, Z.S. Peng and H. Yang
Simple sequence repeats (SSRs) are highly informative, polymorphic, and co-dominant Mendelian markers that provide an important genomic resource for genetic research. Recently, the use of large-scale transcriptome sequence has become a reliable and efficient approach for the identification and development of new EST-SSR markers. In this study, 8389 potent.. Read More»
- Genet. Mol. Res. 15(1):
- gmr.15017509
- DOI:
- 10.4238/gmr.15017509
Meiotic behavior of a nonaploid accession endorses x = 6 for Brachiaria humidicola (Poaceae)
Authors: K.R. Boldrini, M.S. Pagliarini and C.B. Valle
Brachiaria humidicola (Poaceae), originally from Africa, is an economically important pasture plant in tropical South America. An accession of B. humidicola (H038) collected from the wild African savanna (Mbeya, Tanzania) showed irregular microsporogenesis. This meiotic behavior was consistent with an allopolyploid origin. Mul.. Read More»
- Genet. Mol. Res. 8(4):
- vol8-4gmr679
- DOI:
- 10.4238/vol8-4gmr679
Cytogenetic characterization of Rhamdia quelen (Siluriformes, Heptapteridae) from the Bodoquena Plateau, Mato Grosso do Sul, Brazil
Authors: V.P.O. Moraes, S.S. Cereali, O. Froehlich, A.L. Dias
We made a cytogenetic study of the fish Rhamdia quelen collected from the Bodoquena Plateau, an isolated national park region in Mato Grosso do Sul State, Brazil. The diploid number was 2n = 58, with 36 metacentric + 16 submetacentric + 6 subtelocentric chromosomes. We found one to three B chromosomes, which were metacentric a.. Read More»
- Genet. Mol. Res. 6(3):
Differential characterization of holocentric chromosomes in triatomines (Heteroptera, Triatominae) using different staining techniques and fluorescent in situ hybridization
Authors: A. Morielle-Souza, M.T.V. Azeredo-Oliveira
A comparative study of holocentric chromosomes in the triatomine species Panstrongylus megistus, Rhodnius pallescens and Triatoma infestans was carried out in order to characterize heterochromatin, rDNA active sites and nucleolar proteins. Cytological preparations of seminiferous tubules were stained by silver impregnation, C .. Read More»
- Genet. Mol. Res. 6(3):
Karyotypic studies of Cratylia argentea (Desv.) O. Kuntze and C. mollis Mart. ex Benth. (Fabaceae - Papilionoideae)
Authors: S.M. Vargas, G.A. Torres, F.S. Sobrinho, A.V. Pereira, L.C. Davide
Cratylia argentea and C. mollis (Fabaceae-Papilionoideae) are legume shrubs native to the Cerrado and Caatinga, respectively. Both species show great resistance to drought and high nutritive value, which makes them a valuable forage resource in tropical regions. Cytogenetic studies were carried out on accessions of C. argentea.. Read More»
- Genet. Mol. Res. 6(3):
Systematic review of noninvasive prenatal diagnosis for abnormal chromosome genetic diseases using free fetal DNA in maternal plasma
Authors: H. Yang, H.B. Xu, T.T. Liu and X.L. He
We evaluated the system accuracy of noninvasive prenatal diagnosis for abnormal chromosome genetic diseases using cell-free fetal DNA in maternal plasma. Previous studies were searched in the MEDLINE database using the following keywords: “prenatal” and “aneuploidy” and “noninvasive or non-invasive” and “maternal&.. Read More»
- Genet. Mol. Res. 14(3):
- http://dx.doi.org/2015.September.9.1
- DOI:
- http://dx.doi.org/10.4238/2015.September.9.1
Differentiation and evolutionary relationships in Erythrinus erythrinus (Characiformes, Erythrinidae): occurrence and distribution of B chromosomes
Authors: N.F. Martins, M.B. Cioffi, W.P. Troy, J.F. Martinez, O. Moreira-Filho and L.A.C. Bertollo
Erythrinus erythrinus, a Neotropical fish species of the Erythrinidae family, has a wide distribution in South America. Previous cytogenetic analysis showed that this species presents extensive karyotype diversity, with 4 karyomorphs (A-D) described herein. This study investigated the karyotypic structure of 2 new pop.. Read More»
- Genet. Mol. Res. 13(3):
- 2014.February.14.11
- DOI:
- 10.4238/2014.February.14.11
B chromosome prevalence and physical mapping of 18S rDNA and H4 histone sites in the grasshopper Xyleus discoideus angulatus (Romaleidae)
Authors: C.B. Machado, L.C. Silva Neto, V. Loreto and M.J. Souza
We sampled 11 natural populations of the grasshopper Xyleus discoideus angulatus in Northeastern Brazil to analyze B chromosome frequency and meiotic behavior. We observed a single large B chromosome, resembling the X chromosome, in 29 of the 402 specimens. Eight of the 11 populations had B chromosomes, with a rather .. Read More»
- Genet. Mol. Res. 13(3):
- 2014.March.26.4
- DOI:
- 10.4238/2014.March.26.4
Loss of heterozygosity on chromosome 5 in Iranian esophageal cancer patients
Authors: F. Attaran-Bandarabadi, A.A. Ziaee, M. Yazdanbod, M. Shahpanah, A. Setayeshgar and M. Nassiri
There is a high incidence of esophageal squamous cell carcinoma (ESCC) in Iran. Non-functionality of some tumor suppressor genes has been reported in esophageal cancer. Loss of heterozygosity on chromosome 5 has also been reported in esophageal carcinomas. We assessed loss of heterozygosity along a region of the long arm of ch.. Read More»
- Genet. Mol. Res. 10(4):
- 2011.October.5.2
- DOI:
- 10.4238/2011.October.5.2