
Authors: C.B.M. Cerqueira-Silva1, C.B. Cardoso-Silva2, L.D.H.C.S. Concei�§�£o3, J.V.A. Nonato2, A.C. Oliveira2 and R.X. Corr�ªa3
We investigated seven distance measures and 14 similarity coefficients in a set of observations of variables of the ‘yellow’ passion fruit plant (Passiflora edulis Sims), submitted to multivariate analyses (distance, projection and grouping). Fourteen genotypes were characterized, based on DNA amplification with 16 random amplif.. Read More»
Authors: H.-X. Tong M. Li Y. Zhang J. Zhu W.-Q. Lu
Neurofibromatosis type 1 (NF1; OMIM#162200) is a common neurocutaneous disorder that is characterized by multiple café-au-lait, skinfold freckling, Lisch nodules, and neurofibromas. Mutations in the NF1 gene, which encodes the neurofibromin protein, have been identified as the pathogenic gene of NF1. In this study, we present a clinical and molecul.. Read More»
Authors: O.M. Keane1,3, N. Maqbool2, A.F. McCulloch2, J.C. McEwan2 and K.G. Dodds2
Genes whose products function in a common biological process are often co-regulated. When regulation occurs at the transcriptional level, co-expressed genes can be detected globally by expression arrays or by sequencing non-normalized cDNA libraries. We examined bovine gene expression in 27 tissues using non-normalized cDNA library sequencing. Contigs wer.. Read More»
Authors: L. Li, M. Jiang and X.Q. Shen
Fishes adapt to salinity changes primarily through osmotic pressure regulation, a process often associated with several genes, including 14-3-3a, NKCCla, APO-14, and Na+-K+-ATPaseβ. The present study investigated the differential expression of genes 14-3-3a, NKCCla, APO-14, and Na+-K+-ATPaseβ in the gill tissue of Mu.. Read More»
Authors: A.C.P. Silveira1, T.F. Braga1, J.F. Almeida2, R.C. Antunes1,P.F.A. Freitas1, A.S.M. Cesar1 and E.C. Guimar�£es1
We examined the polymorphisms in the PIT1 gene of 103 pigs and compared their frequencies in the maternal and paternal lineages of the Pietrain and Large White breeds, which have undergone divergent selection for over 30 years. DNA samples extracted from the blood of these animals were amplified by PCR and genotyped by RFLP, using the restriction enzyme R.. Read More»
Authors: Q.F. Wang, Y. Huang, G.C. He, H.S. Wang, Z.H. Chen, X.H. Cai, Y.H. Xie and Q. Liu
The aim of this study was to examine the efficiency of polyethylenimine-mediated transfection of the human bone morphogenetic protein-2 (BMP-2) gene into rabbit adipose-derived stem cells (ADSCs), and its effect on osteoblast differentiation. Adipose tissue was isolated from the necks of adult Japanese white rabbits and cultur.. Read More»
Authors: R.T. Maia1, V.M. Scarpassa2, L.H. Maciel-Litaiff3 and W.P. Tadei2
Aedes albopictus, a mosquito originally from Southeast Asia, is considered to be one of the main vectors of dengue fever, yellow fever and other arboviruses. We examined the genetic variability and population structure of 68 individuals of Ae. albopictus collected from five neighborhoods of the city of Manaus, based on the mitochondrial gene cod.. Read More»
Authors: V. Andrade-Souza, A.-A.F. Almeida, R.X. Corr�ªa, M.A. Costa,\M.S. Mielke and F.P. Gomes
We examined leaf CO2 assimilation and how it varied among species within the orchid genus Cattleya. Measurements of CO2 assimilation and maximum quantum yield of PS II (Fv/Fm) were made for mature leaves of nine species using a portable system for photosynthesis measurement and a portable fluorometer. Leaf area was measured with an area meter, and th.. Read More»
Authors: D. Hepp G.L. Gon�§alves G.R.P. Moreira T.R.O. Freitas C.T.D.C. Martins T.A. Weimer D.T. Passos
The melanocortin 1 receptor (MC1R) gene has been described as responsible for the black color in some breeds of sheep, but little is known about its function in many colored breeds, particularly those with a wide range of pigmentation phenotypes. The Brazilian Creole is a local breed of sheep from southern Brazil that has a wide variety of wool colors. We.. Read More»
Authors: A.R. Schuelter1, A.K. Grunvald1, A.T. Amaral J�ºnior2, C.L. da Luz1,C.L. Luz1, L.M. Gon�§alves1, S. Stefanello1 and C.A. Scapim3
Cocona (Solanum sessiliflorum Dunal) is a solanaceous shrub native to the Amazon region that produces an edible fruit. This species has numerous advantages, particularly a high nutritional value and productivity. However, due to irregular germination and rapid loss of seed viability, there are few plantations for production on a large scale. Development o.. Read More»