Navegação Ciências Biológicas por Título
Resultados 1253-1272 de 3025
-
Genes de Bacillus thuringiensis : uma estratégia para conferir resistência a insetos em plantas
(2003) [Artigo de periódico]Os insetos constituem uma das principais causas de danos à produção agrícola no mundo. O controle de insetos tem sido realizado por meio de agroquímicos e, em muito menor escala, pelo emprego de inseticidas biológicos. As ... -
Genes involved in cell division in mycoplasmas
(2007) [Artigo de periódico]Bacterial cell division has been studied mainly in model systems such as Escherichia coli and Bacillus subtilis, where it is described as a complex process with the participation of a group of proteins which assemble into ... -
Gene therapy for neuronopathic mucopolysaccharidoses : state of the art
(2021) [Artigo de periódico]The need for long-lasting and transformative therapies for mucopolysaccharidoses (MPS) cannot be understated. Currently, many forms of MPS lack a specific treatment and in other cases available therapies, such as enzyme ... -
A Genética na Fibrose Cística
(2011) [Artigo de periódico]A fibrose cística (FC) é a doença autossômica recessiva mais comum em euro-descendentes, com uma incidência estimada de 1 caso a cada 2.500 nascimentos. A FC é uma doença multissistêmica, caracterizada principalmente por ... -
Genetic and ecological niche modeling of Calydorea crocoides (Iridaceae): an endemic species of Subtropical Highland Grasslands
(2018) [Artigo de periódico]Evolutionary analyses have been widely used for evaluation of genetic diversity of natural populations and correlate these data to the fitness of the species, especially in the case of threatened species. Calydorea crocoides ... -
Genetic architecture of a pollinator shift and its fate in secondary hybrid zones of two Petunia species
(2023) [Artigo de periódico]Background: Theory suggests that the genetic architecture of traits under divergent natural selection influences how easily reproductive barriers evolve and are maintained between species. Divergently selected traits with ... -
Genetic characterization of a brangus-ibage cattle population-biochemical polymorphisms and reproductive efficiency
(2000) [Artigo de periódico]Técnicas bioquímicas foram utilizadas para determinar a variabilidade genética numa população de bovinos da raça Brangus-Ibagé com relação a 18 sistemas protéicos sangüíneos: Hemoglobina - Cadeia b (Hb), Albumina (Alb), ... -
Genetic components affecting embryonic developmental time of Drosophila melanogaster
(2002) [Artigo de periódico]The developmental time of the embryonic stage of Drosophila melanogaster was 21.66% faster and 14.75% slower than controls in populations selected for fast and slow developmental speed, respectively. The genetic model with ... -
Genetic counseling and presymptomatic testing programs for Machado-Joseph Disease : lessons from Brazil and Portugal
(2014) [Artigo de periódico]Machado-Joseph disease (MJD) is an autosomal dominant, late-onset neurological disorder and the most common form of spinocerebellar ataxia (SCA) worldwide. Diagnostic genetic testing is available to detect the disease-causing ... -
Genetic differentiation in East African ethnicities and its relationship with endurance running success
(2022) [Artigo de periódico]Since the 1960s, East African athletes, mainly from Kenya and Ethiopia, have dominated long-distance running events in both the male and female categories. Further demographic studies have shown that two ethnic groups are ... -
Genetic diversity analysis of two Eucalyptus species using ISSR markers
(2020) [Artigo de periódico]Here, we deployed a genetic diversity analysis using ISSR markers in two Eucalyptus species, as a fundamental step toward breeding strategies. The selected species were Eucalyptus urophylla and Eucalyptus microcorys, both ... -
Genetic Diversity and Connectivity of Southern Right Whales (Eubalaena australis) Found in the Brazil and Chile–Peru Wintering Grounds and the South Georgia (Islas Georgias del Sur) Feeding Ground
(2020) [Artigo de periódico]As species recover from exploitation, continued assessments of connectivity and population structure are warranted to provide information for conservation and management. This is particularly true in species with high ... -
Genetic diversity and population structure of naturally rare Calibrachoa species with small distribution in southern Brazil
(2019) [Artigo de periódico]Calibrachoa is a South-American genus comprising 27 species, several considered endemic or rare; few were subjects in genetic studies. We attempted to generate new data about the phylogenetically related and rare species ... -
Genetic diversity and population structure of Vriesea reitzii (Bromeliaceae), a species from the Southern Brazilian Highlands
(2018) [Artigo de periódico]The Southern Brazilian Highlands are composed by a mosaic of Mixed Ombrophilous Forest (MOF) and grassland formations, an interesting landscape for the study of population structure. We analyzed the genetic diversity within ... -
Genetic diversity and symbiotic compatibility among rhizobial strains and Desmodium incanum and Lotus spp. plants
(2014) [Artigo de periódico]This work aimed to evaluate the symbiotic compatibility and nodulation efficiency of rhizobia isolated from Desmodium incanum, Lotus corniculatus, L. subbiflorus, L. uliginosus and L. glaber plants by cross-inoculation. ... -
Genetic diversity in a Brazilian bovine herd based on four microsatellite loci
(2000) [Artigo de periódico]Microssatélites ou repetições curtas em tandem (STRs) são marcadores moleculares de relativa abundância no genoma e apresentam alto grau de polimorfismo, constituindo-se numa excelente ferramenta para a caracterização das ... -
Genetic diversity in Calibrachoa pygmaea (Solanaceae) a hawkmoth-pollinated nightshade from the Pampas
(2019) [Artigo de periódico]Calibrachoa pygmaea is a unique species of Calibrachoa, especially concerning its flower morphology and the environment where it occurs. The species is self-incompatible and is narrowly distributed in wet and flooded fields ... -
Genetic diversity of Echinococcus vogeli in the western Brazilian Amazon
(2019) [Artigo de periódico]Human polycystic echinococcosis is a parasitic infection caused by the larval stage of Echinococcus vogeli, which occurs in rural areas of Central and South America. Until now, little information on the genetic variability ... -
Genetic diversity of the Cryptococcus species complex suggests that Cryptococcus gattii deserves to have varieties
(2009) [Artigo de periódico]The Cryptococcus species complex contains two sibling taxa, Cryptococcus neoformans and Cryptococcus gattii. Both species are basidiomycetous yeasts and major pathogens of humans and other mammals. Genotyping methods have ... -
Genetic epidemiology of BRCA1- and BRCA2-associated cancer across Latin America
(2021) [Artigo de periódico]The prevalence and contribution of BRCA1/2 (BRCA) pathogenic variants (PVs) to the cancer burden in Latin America are not well understood. This study aims to address this disparity. BRCA analyses were performed on prospectively ...
