Gene
Cytogenetics of genetic counseling patients in Pelotas, Rio Grande do Sul, Brazil
Authors: A.C. Duarte1, E. Cunha, J.M. Roth, F.L.S. Ferreira, G.L. Garcias and M.G. Martino-Roth
From 1986 to 2002, we examined the chromosomal composition of 916 patients attended by two genetic counseling services in the city of Pelotas, in the Brazilian State of Rio Grande do Sul, to determine the genetic causes of their disturbances. Patterns of G-banding using trypsin and Giemsa (GTG) and C-banding using barium and G.. Read More»
- Genet. Mol. Res. 3(3):
Comparative cytogenetic studies of Curimatidae (Pisces, Characiformes) from the middle Paran�¡ River (Argentina)
Authors: M.S. Brassesco, M.C. Pastori, H.A. Roncati and A.S. Fenocchio
Almost all species of the Curimatidae family have a stable karyotype, with a diploid number of 54 metacentric (M) and submetacentric (SM) chromosomes, and one sole nucleolus organizer pair. This family has considerable specific diversity in Argentinean fluvial basins; however, no cytogenetic data are available. Eight species f.. Read More»
- Genet. Mol. Res. 3(2):
Evolution by polyploidy and gene regulation in Anura
Authors: Maria Luiza Be�§ak, Leonardo Setsuo Kobash
The evolution of the metazoa has been characterized by gene redundancy, generated by polyploidy, tandem duplication and retrotransposition. Polyploidy can be detected by looking for duplicated chromosomes or segments of orthologous chromosomes in post-polyploid animals. It has been proposed that the evolutionary role of polypl.. Read More»
- Genet. Mol. Res. 3(2):
Identification of Chromobacterium violaceum genes with potential biotechnological application in environmental detoxification
Authors: Marta S.P. Carepo, Juliana S. Nina de Azevedo, Jorge I.R. Porto, Alexandra R. Bentes-Sousa, Jacqueline da Silva Batista, Artur L.C. da Silva, Maria P.C. Schneider
Chromobacterium violaceum is a Gram-negative bacterium found in a wide variety of tropical and subtropical ecosystems. The complete genome sequence of C. violaceum ATCC 12472 is now available, and it has considerable biotechnological potential for various applications, such as environmental detoxification, as well as medical a.. Read More»
- Genet. Mol. Res. 3(1):
Transport genes of Chromobacterium violaceum: an overview
Authors: Thalles Barbosa Grangeiro, Daniel Macedo de Melo Jorge, Walderly Melga�§o Bezerra, Ana Tereza Ribeiro Vasconcelos, Andrew John George Simpson
The complete genome sequence of the free-living bacterium Chromobacterium violaceum has been determined by a consortium of laboratories in Brazil. Almost 500 open reading frames (ORFs) coding for transport-related membrane proteins were identified in C. violaceum, which represents 11% of all genes found. The main class of tran.. Read More»
- Genet. Mol. Res. 3(1):
Chemotaxis and flagellar genes of Chromobacterium violaceum
Authors: Maristela Pereira, Juliana Alves Parente, Luiz Artur Mendes Bataus, Divina das Dores de Paula Cardoso, Renata Bastos Ascen�§o Soares, C�©lia Maria de Almeida Soares
The availability of the complete genome of the Gram-negative β-proteobacterium Chromobacterium violaceum has increasingly impacted our understanding of this microorganism. This review focuses on the genomic organization and structural analysis of the deduced proteins of the chemosensory adaptation system of C. violaceum. .. Read More»
- Genet. Mol. Res. 3(1):
Gene expression in Chromobacterium violaceum
Authors: Rosane Silva, J�ºlia R. Araripe, Edson Rondinelli, Tur�¡n P. ��rm�©nyi
The repertoire of 4,431 open reading frames (ORFs), eight rRNA operons and 98 tRNA genes of Chromobacterium violaceum must be expressed in a regulated manner for successful adaptation to a wide variety of environmental conditions. To accomplish this feat, the organism relies on protein machineries involved in transcription, RN.. Read More»
- Genet. Mol. Res. 3(1):
Behavioral genetics of Drosophila ananassae
Authors: Shree Ram Singh, Bashisth N. Singh
Drosophila ananassae has a unique status among Drosophila species because of certain peculiarities in its genetic behavior. The most unusual feature of this species is its relatively high frequency of spontaneous male recombination. The results of studies on non-sexual behavior, such as phototactic responses, eclosion rhythm, .. Read More»
- Genet. Mol. Res. 2(4):
Putative pyrophosphate phosphofructose 1-kinase genes identified in sugar cane may be getting energy from pyrophosphate
Authors: S.J. Suzuki, M.A. Mutton, J.M. Pizauro, M. I.T. Ferro, M. V.F. Lemos, M. J.R. Mutton, S. M.Z. Di Mauro
Pyrophosphate-dependent phosphofructokinase (PPi-PFK) has been detected in several types of plant cells, but the gene has not been reported in sugar cane. Using Citrus paradisi PPi-PFK gene (AF095520 and AF095521) sequences to search the sugar cane EST database, we have identified both the α and β subunits of this e.. Read More»
- Genet. Mol. Res. 2(4):
Genetic polymorphism at spinocerebellar ataxia 1 and 2 loci in Brazil
Authors: Stenio F.P. Duarte, Raquel S. Gestinari, M�¡rio Campos-Jr, M�¡rcia M.G. Pimentel, Marcelo A. Costa Lima
Dynamic mutation involves the expansion of a tandem arrayed DNA sequence that is polymorphic in the population. This mechanism is associated with neurological/neuromuscular disorders and the pathology depends on the extension of the repeated tract, with a specific threshold for each disease. We made a PCR-based characterizatio.. Read More»
- Genet. Mol. Res. 2(4):