Authors: Dieter Plasse1, Omar Verde, Jes�ºs Arango, Luis Camaripano, Hugo Fossi, Rafael Romero, Carlos Rodriguez M. and Jos�© L. Rumbos
(Co)variance components and genetic parameters were estimated for body weights of an elite Brahman herd under a designed, supervised management and genetic program, including strategic artificial insemination (AI). Restricted maximum likelihood methods were used with a univariate animal model for birth weight (BW) and a bivari.. Read More»
Authors: Toni Lisboa Costa
Ectodermal dysplasias are conditions that involve structures derived from the ectoderm, such as the epidermis and its enclosures, constituting a large and complex nosologic group, composed of rare entities with genetic etiology (in their majority). Freire-Maia, in 1971 and 1977, proposed a clinical definition and a clinical-mn.. Read More»
Authors: Fausto de Souza-Sobrinho, Wilson Roberto Maluf, Luiz A.A. Gomes and Vicente Paulo Campos
Root-knot nematodes of the genus Meloidogyne are important pathogens affecting vegetable crop production in Brazil and worldwide. The pepper species Capsicum annuum includes both hot and sweet peppers; very little emphasis has been placed on breeding sweet peppers for nematode resistance. We report on the inheritance of resist.. Read More»
Authors: Carlos Alberto Longui, Mylene Neves Rocha,Liana Carla Albuquerque Peres Martinho,Gustavo Gir Gomes, Ricardo Eustachio de Miranda,Thomas Alves de Souza Lima, M�´nica Barbosa Melo and Osmar Monte
Turner syndrome is caused by haploinsufficiency of the short arm of X-chromosome, and is usually diagnosed by karyotyping. This procedure is time-consuming, expensive and unfeasible for population screening. We propose molecular detection of 45XO Turner patients based on the ability of HpaII, a methylation sensitive endonuclea.. Read More»
Authors: S. DÃ?Âaz, F.N. Dulout and P. Peral-GarcÃ?Âa
Genetic polymorphism was analyzed for five blood proteins: albumin - Al, esterase - Es, α1B-glycoprotein - Xk, transferrin - Tf and hemoglobin - Hb in 200 Thoroughbred (TB) and 124 Argentine Creole (AC) horses. Of the five systems examined, Tf and Hb were not in Hardy-Weinberg equilibrium in either breed and Es was not i.. Read More»
Authors: Andr�©a Ramirez, Pedro Henrique Saldanha
The micronucleus test (MN) is used as an indicator of genotoxic exposition, since it is associated with chromosome aberrations. An increased mutation rate in oral squamous cells, indicated by an increased MN frequency, is also related to the development of oral carcinomas. We evaluated the frequencies of MN and other metanucle.. Read More»
Authors: Olga Barbosa-Cisneros and Rafael Herrera-Esparza
To explore the CENP-B centromere protein in beans, carrots, onions and potatoes, total RNA was isolated and reverse transcribed by PCR, and the cDNA encoding the CENP-B amino terminus domain amplified using CENP-B oligonucleotides. Blots containing PCR products were hybridized with a nick-translated pG/CNPB probe containing a .. Read More»
Authors: Ana Rossini, Davy C.M. Rapozo, LÃ?Âdia M.F. Amorim, Jacyara M.B. Macedo1, Raquel Medina, JosÃ?© F.N. Neto, ClÃ?¡udia V.M. Gallo and Luis F.R. Pinto
The glutathione S-transferase (GST) family of enzymes has a vital role in phase II of biotransformation of environmental carcinogens, pollutants, drugs and other xenobiotics. GSTs are polymorphic, with the type and frequency of polymorphism being ethnic dependent. Polymorphisms in GST genes have been shown to be associated wit.. Read More»
Authors: Pedro Duay, D. De Jong, Wolf Engels
We developed a bioassay to measure the flying power of drone, in order to determine which drones could reach a drone congregation area. A wind tunnel was used to test unparasitized drones and drones slightly parasitized by one or two mites during pupal development, and counts were made of the number of spermatozoa that they pr.. Read More»
Authors: Aylton Saturnino Teixeira, Alan Jamieson and Jos�© Carlos Paula Raposo
lood plasma of 253 specimens from eight population samples of the sciaenid fish, pescada (Plagioscion squamosissimus), caught from four sites in the Central Amazon, was tested for molecular variants of transferrin. Starch gel electrophoresis was used to distinguish six species of transferrin molecules; 12 of the 21 theoretical.. Read More»