Cytogenetic comparison of tree frogs of the genus Aplastodiscus and the Hypsiboas faber group (Anura, Hylidae)

Authors: K.A. Carvalho, P.C.A. Garcia and S.M. Recco-Pimentel

Four species of Aplastodiscus and two species of Hypsiboas were cytogenetically compared. Aplastodiscus perviridis, A. cochranae, H. albomarginaus, and H. faber had 2n = 24 chromosomes, while A. albosignatus and A. leucopygius had 2n = 20 and 2n = 18 chromosomes, respectively. Aplastodiscus perviridis and A. cochranae had iden.. Read More»

Genet. Mol. Res. 8(4): vol8-4gmr697

DOI: 10.4238/vol8-4gmr697

Science in Brazil: not just a matter of economy and natural resources

Authors: S.U. Dani

-.. Read More»

Genet. Mol. Res. 8(4): vol8-4gmr734

DOI: 10.4238/vol8-4gmr734

Dietary carotenoid-rich pequi oil reduces plasma lipid peroxidation and DNA damage in runners and evidence for an association with MnSOD genetic variant -Val9Ala

Authors: A.L. Miranda-Vilela, A.K. Akimoto, P.C.Z. Alves, L.C.S. Pereira,C.A. Gon�§alves, M.N. Klautau-Guimar�£es and C.K. Grisolia

Physical training induces beneficial adaptations; however, exhausting exercise increases reactive oxygen species generation, resulting in damage to DNA and tissues. Pequi (Caryocar brasiliense), a fruit of the Brazilian Cerrado, contains a carotenoid-rich oil. We investigated whether pequi oil had antioxidant effects in runner.. Read More»

Genet. Mol. Res. 8(4):

Simultaneous presence of bovine papillomavirus in blood and in short-term lymphocyte cultures from dairy cattle in Pernambuco, Brazil

Authors: N. Diniz, T.C. Melo, J.F. Santos, E. Mori, P.E. Brand�£o, L.J. Richtzenhain, A.C. Freitas, W. Be�§ak, R.F. Carvalho and R.C. Stocco

Bovine papillomaviruses (BPV) are the causal agents of benign and malignant lesions; they can cause dramatic economic losses in cattle. Although 10 virus types have been described, three types are most common in tumors, namely BPV-1, -2 and -4. Previous studies have reported BPV in blood cells and the possibility of blood acti.. Read More»

Genet. Mol. Res. 8(4): vol8-4gmr668

DOI: 10.4238/vol8-4gmr668

Estimation of genetic distance between 10 maize accessions with varying response to different levels of soil moisture

Authors: M. Aslam, F.S. Awan, I.A. Khan and A.I. Khan

Ten maize accessions (NC-9, A50-2, M-14, B-42, NC-3, T-7, N-48-1, B-34, USSR, and WFTMS) were studied to estimate the genetic distance on molecular level by random amplified polymorphic DNA. These accessions were selected on the basis of their variable responses against different levels of moisture. Twenty-five primers were us.. Read More»

Genet. Mol. Res. 8(4): vol8-4gmr606

DOI: 10.4238/vol8-4gmr606

RNA-binding motif protein RBM22 is required for normal development of zebrafish embryos

Authors: F. He, C.-T. Wang and L.-T. Gou

RBM22 is a newly discovered RNA-binding motif protein, belonging to the SLT11 family; it has been reported to be involved in pre-splicesome assembly and to interact with the Ca2+-signaling protein ALG-2. However, previous studies have not demonstrated whether its expression is essential for early embryogenesis in vertebrates. .. Read More»

Genet. Mol. Res. 8(4): vol8-4gmr683

DOI: 10.4238/vol8-4gmr683

XRCC1 polymorphisms and haplotypes in Mexican patients with acute lymphoblastic leukemia

Authors: J.P. Meza-Espinoza, V. Peralta-Leal, M. Gutierrez-Angulo,N. Macias-Gomez, M.L. Ayala-Madrigal, P. Barros-Nu�±ez,J. Duran-Gonzalez and E. Leal-Ugarte

We examined the influence of the Arg194Trp, Arg280His, and Arg399Gln polymorphisms of XRCC1 (X-ray repair cross-complementing group 1) on the development of childhood acute lymphoblastic leukemia (ALL) in 120 ALL patients and 120 controls in Mexico. All of them were genotyped for these polymorphisms, using polymerase chain rea.. Read More»

Genet. Mol. Res. 8(4): vol8-4gmr687

DOI: 10.4238/vol8-4gmr687

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