Consulta: creatorFacets:"Brito,Rute Magalhães"
Registros recuperados: 4
Data/hora: 14/06/2024 06:20:23

Karyotypic description of four species of Trigona (Jurine, 1807) (Hymenoptera, Apidae, Meliponini) from the State of Mato Grosso, Brazil
Provedor de dados: 74
Autores: Costa,Kleber França; Brito,Rute Magalhães; Miyazawa,Carlos Suetoshi.
The genus Trigona contains at least 31 species, but there have been few cytogenetic studies of this group. In this work, four species of Trigona (T. branneri, T. chanchamayoensis, T. hyalinata, and T. recursa) from the municipality of Cuiabá, in the State of Mato Grosso, Brazil, were studied. In all of the species, the females had 2n = 34 chromosomes and the males had n = 17. The C-banding patterns showed that the karyotypes of these species consisted mainly of acrocentric and pseudoacrocentric chromosomes. These cytogenetic findings should useful in future phylogenetic studies of this group.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytogenetics; Karyotype; Meliponini; Stingless bees; Trigona.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000200010

Cytogenetic data of Partamona peckolti (Hymenoptera, Apidae, Meliponini) by C banding and fluorochrome staining with DA/CMA3 and DA/DAPI
Provedor de dados: 74
Autores: Brito,Rute Magalhães; Caixeiro,Ana Paula de Almeida; Pompolo,Silvia das Graças; Azevedo,Giselle Garcia.
The stingless bees of the Partamona genus have been studied taxonomically, ecologically and behaviourally, but cytogenetic studies are still rare. The objective of this study was to obtain cytogenetic data to contribute to Partamona peckolti species characterization. Heterochromatin was localized in all chromosome pericentromeric regions but some blocks could be visualized on some large chromosomes arms. A large heterozygous DA-CMA3-positive band was observed on one large chromosome arm, but was completely absent when C banding was applied before fluorochrome staining, with only one small positive band being visualized. Sequential DA-CMA3-NOR staining of interphase nuclei provided coincident positive responses. This suggests that DA-CMA3-positive bands of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meliponini; Partamona; Karyotype; C-banding; Fluorochromes.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000100009

Very low mitochondrial variability in a stingless bee endemic to cerrado
Provedor de dados: 74
Autores: Brito,Rute Magalhães; Francisco,Flávio de Oliveira; Françoso,Elaine; Santiago,Leandro Rodrigues; Arias,Maria Cristina.
Partamona mulata is a stingless bee species endemic to cerrado, a severely threatened phytogeographical domain. Clearing for pasture without proper soil treatment in the cerrado facilitates the proliferation of termite ground nests, which are the nesting sites for P. mulata. The genetic consequences of these changes in the cerrado environment for bee populations are still understudied. In this work, we analyzed the genetic diversity of 48 colonies of P. mulata collected throughout the species' distribution range by sequencing two mitochondrial genes, cytochrome oxidase I and cytochrome B. A very low polymorphism rate was observed when compared to another Partamona species from the Atlantic forest. Exclusive haplotypes were observed in two of the five areas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; MtDNA; Genetic variability; Partamona mulata.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000100018

A fauna apícola do Parque Municipal da Cachoeirinha (Iporá, GO)
Provedor de dados: 49
Autores: Santiago,Leandro Rodrigues; Brito,Rute Magalhães; Muniz,Thiago Mahlmann Vitoriano Lopes; Oliveira,Favízia Freitas de; Francisco,Flávio de Oliveira.
As abelhas possuem grande importância econômica e ecológica, em vista de sua dependência dos recursos florais como o pólen e o néctar (principais fontes de proteínas e energia, respectivamente), representando cerca de 40 a 90% dos agentes polinizadores de fanerógamas em diversos ecossistemas. No presente trabalho, foi realizado o inventário apícola do Parque Municipal da Cachoeirinha (Iporá, GO). Foram realizadas 58 horas de coleta no total, realizadas nos meses de novembro/dezembro de 2004 e março e maio de 2005. Foi coletado um total de 933 indivíduos, distribuídos em uma família, 16 tribos, 33 gêneros e 62 espécies. A tribo Meliponini foi a mais abundante em número de indivíduos e espécies. As espécies mais abundantes foram Trigona chanchamayoensis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hymenoptera; Cerrado; Apidae.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000300034