Consulta: creatorFacets:"Duarte,José Maurício Barbanti"
Registros recuperados: 12
Data/hora: 02/06/2024 05:25:16

Genetic diversity of the pampas deer (Ozotoceros bezoarticus) population in the Brazilian Pantanal assessed by combining fresh fecal DNA analysis and a set of heterologous microsatellite loci
Provedor de dados: Genetics and Molecular Biology
Autores: Mantellatto,Aline Meira Bonfim; Caparroz,Renato; Christofoletti,Maurício Durante; Piovezan,Ubiratan; Duarte,José Maurício Barbanti.
Abstract The pampas deer (Ozotoceros bezoarticus) is close to being classified as ‘globally threatened’, with the largest population occurring in the Brazilian Pantanal. Since capture is stressful to these animals, non-invasive sampling methods such as the use of feces can provide reliable sources of DNA. The aim of this study was to use fecal samples to evaluate the genetic variability of the Brazilian Pantanal population of pampas deer. Six heterologous microsatellite markers were used to screen 142 stool specimens. Seventy-four deer were identified, of which 50 adults were used to determine the genetic characteristics of the population. The Pantanal population showed high genetic diversity (mean number of alleles per locus = 11.5, expected...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conservation; Fecal DNA; Microsatellites; Non-invasive methods; Pampas deer.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000500774

Molecular identification of Mazama species (Cervidae: Artiodactyla) from natural history collections
Provedor de dados: Genetics and Molecular Biology
Autores: Mantellatto,Aline Meira Bonfim; González,Susana; Duarte,José Maurício Barbanti.
Abstract Natural history museum collections constitute an invaluable patrimony of biological diversity for analysing the taxa distribution and evolution. However, it is very common to discover taxonomic misidentification in museum collections based on incorrect data. The aim of this research was to identify brocket deer species (Mazama genus) using molecular markers. We collected 199 samples, performed DNA extraction and species identification using a specific mitochondrial marker based on a fragment of cytochrome b (Cytb) for Neotropical deer. We achieved the amplification and sequencing of 77 specimens and verified that 26% of the skulls were wrongly identified. Moreover, in the museum collections 57% of the specimens were only identified as Mazama sp,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytochrome b; Deer; DNA; Mammal; Morphological taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400201

A leukocyte cryopreservation technique for cytogenetic studies
Provedor de dados: Genetics and Molecular Biology
Autores: Duarte,José Maurício Barbanti; Ramalho,Mariney Flávia Pereira Di Tano; Lima,Vera Fernanda Hossepian de; Jorge,Wilham.
Several culture, cryopreservation, freezing and thawing methods were tested to develop an efficient technique for storing cervid and ovine leukocytes. The best results were obtained with McCoy or Vega y Martinez (VYM) solution with dimethyl sulfoxide (DMSO), horse serum and polyvinylpyrrolidone (PVP) as cryopreservatives. The best protocol for freezing was 4°C for 30 min followed by 15 min in liquid nitrogen vapor. To thaw, the still frozen material was placed onto cultivation medium for propagation.
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571999000300019

Identifying Mazama gouazoubira (Artiodactyla; Cervidae) chromosomes involved in rearrangements induced by doxorubicin
Provedor de dados: Genetics and Molecular Biology
Autores: Tomazella,Iara Maluf; Abril,Vanessa Veltrini; Duarte,José Maurício Barbanti.
Abstract The process of karyotype evolution in Cervidae from a common ancestor (2n = 70, FN = 70) has been marked by complex chromosomal rearrangements. This ancestral karyotype has been retained by the current species Mazama gouazoubira (Fischer 1814), for which a chromosomal polymorphism (Robertsonian translocations and the presence of B chromosomes) has been described, presumably caused by a chromosome fragility. Thus, this study has identified doxorubicin-induced chromosome aberrations and mapped the regions involved in breaks, which may be related to the chromosome evolution process. G-banding pattern showed that 21 pairs of chromosomes presented chromosomal aberrations, 60% of the total chromosome number of the species M. gouazoubira. Among...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chromosomal aberrations; Chromosome evolution; Brown brocket deer; G-banding.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000300460

Chromosomal similarity between the Scaly-headed parrot (Pionus maximiliani), the Short-tailed parrot (Graydidascalus brachyurus) and the Yellow-faced parrot (Salvatoria xanthops) (Psittaciformes: Aves): a cytotaxonomic analysis
Provedor de dados: Genetics and Molecular Biology
Autores: Caparroz,Renato; Duarte,José Maurício Barbanti.
Behavior, morphology, allozyme studies and DNA hybridization and sequencing data all suggest the independent evolution of the Old and New World parrots and support tribe status for the American species, although the phylogenetic relationships within this tribe are still poorly understood. A previous study has shown that the Yellow-faced parrot (Amazona xanthops Spix 1824) exhibits large karyotypic differences compared to the other Amazona species and suggested that this species should be renamed Salvatoria xanthops, although the relationships between S. xanthops and the other New World parrots remain unclear. In the present work, we describe the karyotype of the Scaly-headed parrot (Pionus maximiliani, Kuhl 1820) and the karyotype and C-banding pattern of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chromosome; Karyotype; Cytotaxonomy; Psittaciformes; Parrots.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000400010

Chromosome polymorphism in the Brazilian dwarf brocket deer, Mazama nana (Mammalia, Cervidae)
Provedor de dados: Genetics and Molecular Biology
Autores: Abril,Vanessa Veltrini; Duarte,José Maurício Barbanti.
The Brazilian dwarf brocket deer (Mazama nana) is the smallest deer species in Brazil and is considered threatened due to the reduction and alteration of its habitat, the Atlantic Rainforest. Moreover, previous work suggested the presence of intraspecific chromosome polymorphisms which may contribute to further population instability because of the reduced fertility arising from the deleterious effects of chromosome rearrangements during meiosis. We used G- and C-banding, and nucleolus organizer regions localization by silver-nitrate staining (Ag-NOR) to investigate the causes of this variation. Mazama nana exhibited eight different karyotypes (2n = 36 through 39 and FN = 58) resulting from centric fusions and from inter and intraindividual variation in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mazama nana; Brazilian dwarf brocket deer; Cytogenetics; Chromosome polymorphism; Centric fusions.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000100011

Mudanças no Código Florestal e seu impacto na ecologia e diversidade dos mamíferos no Brasil
Provedor de dados: Biota Neotropica
Autores: Galetti,Mauro; Pardini,Renata; Duarte,José Maurício Barbanti; Silva,Vera Maria Ferreira da; Rossi,Alexandre; Peres,Carlos Augusto.
Os ecossistemas florestais do Brasil abrigam um dos mais altos níveis de diversidade de mamíferos da Terra, e boa parte dessa diversidade se encontra nas áreas legalmente protegidas em áreas de domínio privado. As reservas legais (RLs) e áreas de proteção permanente (APPs) representam estratégias importantes para a proteção e manutenção dessa diversidade. Mudanças propostas no Código Florestal certamente trarão efeitos irreversíveis para a diversidade de mamíferos no Brasil. Os mamíferos apresentam papéis-chave nos ecossistemas, atuando como polinizadores e dispersores de sementes. A extinção local de algumas espécies pode reduzir os serviços ecológicos nas RLs e APPs. Outra consequência grave da redução de áreas de vegetação nativa caso a mudança no...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Efeito de borda; Várzea; Matas ciliares; Corredores; Conectividade de paisagens; Paisagens antropizadas; Serviços ecossistêmicos.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000400006

Ocorrência de Atelocynus microtis (Sclater, 1882) na Floresta Nacional do Jamari, estado de Rondônia
Provedor de dados: Biota Neotropica
Autores: Koester,Allyson Diaz; Azevedo,Carlos Renato de; Vogliotti,Alexandre; Duarte,José Maurício Barbanti.
O cachorro-de-orelhas-curtas Atelocynus microtis é uma das espécies mais raras de Canídeos Sul-americanos. Os relatos são muito raros e a inexistência de animais cativos também sugere distribuição limitada e densidades baixas. No período de 16 de agosto a 12 de outubro de 2006, foi realizado um monitoramento fotográfico na Floresta Nacional do Jamari, que é uma Unidade de Conservação de Uso Sustentável e possui plano de manejo com seu zoneamento ambiental definido. Os registros fotográficos de Atelocynus microtis foram obtidos nas regiões centro-oeste e noroeste da unidade, áreas formadas por Floresta Ombrófila Densa, com pontos de Floresta Ombrófila Aberta. As áreas onde foram capturadas as imagens fotográficas de Atelocynus microtis, estão em Zona de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atelocynus microtis (cachorro-do-mato-de-orelhas-curtas); Monitoramento fotográfico; Floresta Nacional do Jamari.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000400024

Aerial line transect survey to estimate abundance of marsh deer (Blastocerus dichotomus) (Illiger, 1815)
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Andriolo,Artur; Piovezan,Ubiratan; Costa,Mateus José Rodrigues Paranhos da; Laake,Jeff; Duarte,José Maurício Barbanti.
The objective was to estimate abundance of marsh deer in the Paraná River basin of this work. The results provided information to support further analysis of the impact of the Porto Primavera flooding lake over population. Sixty-nine animals were recorded by aerial survey using distance sampling methodology. Animals were widely distributed throughout the study area. The uncorrected data resulted in a estimate density of 0.0035 ind/ha and a population size of 636 individuals. Correcting the g for the animals that could be missed the calculated abundance was 896 (CV=0.27) individuals. This methodology was applied with success to survey marsh deer. The result was important to evaluate the marsh deer status in the area, and for future analysis of the impact of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abundance; Aerial Survey; Blastocerus dichotomus; Marsh deer; Distance Sampling.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000600017

Aspectos morfológicos do fígado do cervo-do-pantanal (Blastocerus dichotomus)
Provedor de dados: Brazilian Jounarl of Veterinary
Autores: Borges,Edson Moreira; Machado,Márcia Rita Fernandes; Oliveira,Fabrício Singaretti de; Souza,Wilson Machado de; Duarte,José Maurício Barbanti.
A descrição macroscópica do fígado do Cervo do Pantanal foi realizada com ênfase à forma, localização, meios de fixação, disposição e lobação. Foram utilizados os órgãos de animais provenientes do "Projeto Cervo do Pantanal de Porto Primavera", que morreram no período de quarentena, mediante inspeção visual e posterior dissecação. Foi constatado que o fígado do Cervo do Pantanal localiza-se na porção cranial da cavidade abdominal, à direita do plano mediano, possui coloração castanho-avermelhado e apresenta duas faces, quatro bordas, quatro lobos e cinco ligamentos. A principal característica que o difere dos fígados dos outros ruminantes é a ausência de vesícula biliar.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fígado; Morfologia; Mamíferos silvestres; Veados.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962002000200004

Intramyocardial course of the coronary arteries in the marsh deer (Blastocerus dichotomus)
Provedor de dados: Brazilian Jounarl of Veterinary
Autores: Machado,Márcia Rita Fernandes; Borges,Edson Moreira; Oliveira,Fabrício Singaretti de; Filippini-Tomazini,Mariana; Melo,Alan Peres Ferraz de; Duarte,José Maurício Barbanti.
The course of the coronary arteries was studied in marsh deers for comparison with domestic ruminants. The left coronary artery is originated from the aorta in the cardiac auricular surface and divides into paraconal and circumflex branches, which fit the paraconal interventricular sulcus and the subsinuous sulcus, respectively; this artery also gives off a branch to the conus arteriosus just before penetrating the myocardium. The right coronary artery arises from the aorta, in the heart cranial border and ends in this border, close to the subsinuous interventricular sulcus, perhaps without fitting it.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Marsh deer; Blastocerus dichotomus; Coronary arteries.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962002000600002

Retroflexão de bexiga: relato de caso em Blastocerus dichotomus (Cervo-do-Pantanal)
Provedor de dados: Brazilian Jounarl of Veterinary
Autores: Toniollo,Gilson Hélio; Duarte,José Maurício Barbanti; Delfini,Aline; Monreal,Antonio Carlos Duenhas.
A retroflexão de bexiga foi objeto de estudo em cervídeo atendido no Hospital Veterinário da FCAV-Unesp-Jaboticabal-SP. Uma fêmea gestante do criatório da Faculdade apresentou prolapso de bexiga e de reto. A cesariana foi efetuada, porém sem sucesso para ambos. Após esse procedimento, o animal foi sacrificado devido ao comprometimento total da bexiga.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bexiga; Retroflexão; Cervo-do-pantanal.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962004000200010