Diferenciando espécies crípticas de Drosophila através da eletroforese da enzima fosfatase ácida

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ESPÉCIES INVASORAS DA FAMÍLIA DROSOPHILIDAE (DIPTERA, INSECTA) EM AMBIENTES DA CAATINGA DE PERNAMBUCO

Embora as invasões biológicas sejam fenômenos mundiais, poucos estudos foram desenvolvidos em ambientes tropicais, especialmente no Brasil. A escassez de dados sobre os trópicos atinge todos os processos relacionados à invasão, desde a fase de diagnóstico até a de solução de problemas, passando pela caracterização das espécies invasoras, comunidades e habitats invadidos, bem como a previsão dos impactos sobre a biodiversidade. Apresentamos o registro da presença e da distribuição de três espécies invasoras da família Drosophilidae, Zaprionus indianus, Drosophila simulans e D. malerkotliana. Juntas, as três espécies representaram quase metade da abundância absoluta dos indivíduos coletados nos ambientes da Caatinga de Pernambuco aqui investigados

Drosophila nasuta (Diptera, Drosophilidae) in Brazil: a decade of invasion and occupation of more than half of the country

Abstract As a result of human activities and natural dispersal, exotic species can be brought to new areas, where they become established and spread, becoming invaders. These species are responsible for the loss of biodiversity and cause ecosystemic harm throughout the world. In this paper, we report the rapid, broad geographic expansion of the invasive fly Drosophila nasuta in Brazil. An 84% increase was found in its area of occupation in the country compared to previous studies. The present data reveal its arrival to the Pantanal wetlands in a location more than one thousand kilometers from the closest previous record in the Cerrado biome. We present the first record of D. nasuta in the Atlantic Forest in the states of Paraíba and Bahia. We report its introduction in the Amazon Forest in the state of Amazonas approximately 700 kilometers from previous records. The relative abundance of D. nasuta in this biome increased fivefold in comparison to a previous study. In the first decade of invasion in Brazil, D. nasuta has already colonized more than half of the country. The present data reveal its invasive potential and underscore the importance of following up the possible negative effects of this biological invasion

The ELIXIR Human Copy Number Variations Community:building bioinformatics infrastructure for research

Copy number variations (CNVs) are major causative contributors both in the genesis of genetic diseases and human neoplasias. While 'High-Throughput' sequencing technologies are increasingly becoming the primary choice for genomic screening analysis, their ability to efficiently detect CNVs is still heterogeneous and remains to be developed. The aim of this white paper is to provide a guiding framework for the future contributions of ELIXIR's recently established h uman CNV Community, with implications beyond human disease diagnostics and population genomics. This white paper is the direct result of a strategy meeting that took place in September 2018 in Hinxton (UK) and involved representatives of 11 ELIXIR Nodes. The meeting led to the definition of priority objectives and tasks, to address a wide range of CNV-related challenges ranging from detection and interpretation to sharing and training. Here, we provide suggestions on how to align these tasks within the ELIXIR Platforms strategy, and on how to frame the activities of this new ELIXIR Community in the international context

Evolução cromossômica da superespécie Drosophila paulistorum e ecologia de populações marginais

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La Independencia Española : diario liberal de la tarde: La Independencia Española : diario liberal de la tarde - Año IV Número 949 - 1872 abril 24 (24/04/1872)

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Análise morfométrica do gânglio cerebral de Drosophila willistoni ao longo do envelhecimento

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