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1.
BMC Ecol ; 19(1): 51, 2019 12 06.
Artigo em Inglês | MEDLINE | ID: mdl-31810454

RESUMO

BACKGROUND: The use of environmental DNA (eDNA) has become an increasing important tool in environmental surveys and taxonomic research. High throughput sequencing of samples from soil, water, sediment, trap alcohol or bulk samples generate large amount of barcode sequences that can be assigned to a known taxon with a reference sequence. This process can however be bioinformatic cumbersome and time consuming, especially for researchers without specialised bioinformatic training. A number of different software packages and pipelines are available, but require training in preparation of data, running of analysis and formatting results. Comparison of results produced by different packages are often difficult. RESULTS: FACEPIE is an open source script dependant on a few open source applications that provides a pipeline for rapid analysis and taxonomic assignment of environmental DNA samples. It requires an initial formatting of a reference database, using the script CaPReSe, and a configuration file and can thereafter be run to process any number of samples in succession using the same settings and references. Both configuration and executing are designed to demand as little hands on work as possible, while assuring repeatable results. CONCLUSION: The demonstration using example data from real environmental samples provides results in a time span ranging from less than 3 min to just above 15 min depending on the numbers of sequences to process. The memory usage is below 2 GB on a desktop PC. FACEPAI and CaPReSe provides a pipeline for analysing a large number of eDNA samples on common equipment, with little bioinformatic skills necessary, for subsequent ecological and taxonomical studies.


Assuntos
DNA Ambiental , Sequenciamento de Nucleotídeos em Larga Escala , Ecologia , Software
2.
Mol Phylogenet Evol ; 79: 433-42, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25008108

RESUMO

The phylogeny of Chimarra has previously been examined using morphological characters for a smaller subset of taxa and geographical representativeness. Here molecular data from three genes (COI, CAD and POL-II) are used to reconstruct the phylogeny of the genus. The results show Chimarra to be monophyletic, and that some of the sister groups are paraphyletic. Previous hypotheses regarding the relationships of subgenera within the genus are corroborated but incongruences are also found compared to morphological characters that have been used in keys. The origin of the genus is explored using three different hypotheses of biogeographical region. The biogeography analyses reveal an origin in the Neotropical region and a subsequent rapid radiation, with dispersal into the Oriental, Palaearctic and Australasian regions and secondarily to the Nearctic region. The Afrotropical region has been colonized in several independent events. The molecular dating using a relaxed clock and calibration with four fossil species indicates that Chimarra is about 138million years old, and that the radiation out of the Neotropical region occurred approximately 124million years ago.


Assuntos
Evolução Biológica , Insetos/classificação , Filogenia , Animais , Teorema de Bayes , Núcleo Celular/genética , DNA Mitocondrial/genética , Fósseis , Insetos/genética , Modelos Genéticos , Filogeografia , Análise de Sequência de DNA
3.
Zootaxa ; (3796): 579-93, 2014 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-24870694

RESUMO

For the first time species of caddisflies in the genus Chimarra Stephens 1829 are reported from Malawi. The following new species are described: Chimarra zombaensis, C. flaviseta, C. chichewa, C. circumverta, C. mulanjae, C. psittacus and C. calidopectoris. The descriptions add to the knowledge of Afrotropical diversity in the order Trichoptera.


Assuntos
Insetos/anatomia & histologia , Animais , Biodiversidade , Feminino , Insetos/classificação , Malaui , Masculino , Especificidade da Espécie
4.
Zookeys ; 1096: 161-187, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35837668

RESUMO

The Swedish fauna of thrips (Thysanoptera) in the family Phlaeothripidae consists of 49 species. A key to the species of Phlaeothripidae found in Sweden is provided. One species is recorded as new for the country, and 10 new regional records are presented. A checklist of all Swedish tubuliferan species with regional distributions is also given.

5.
Insects ; 13(5)2022 May 13.
Artigo em Inglês | MEDLINE | ID: mdl-35621795

RESUMO

The Wiedemannia zetterstedti species group is revised after examination of all available type specimens and includes one new species (W. ulrichi Ivkovic & Sinclair sp. nov.) and four redescribed species (W. czernyi (Bezzi), W. longipennis (Mik) stat. rev., W. rufipes (Oldenberg) stat. rev. and W. zetterstedti (Fallén)). The following new synonyms are proposed: W. (Roederella) ouedorum Vaillant, 1952 = W. czernyi (Bezzi, 1905); Paramesia riparia Robert, 1836 = W. zetterstedti (Fallén, 1826). Lectotypes are designated for the following species/subspecies: Atalanta hirtiloba Speiser, Brachystoma escheri Zetterstedt, Clinocera czernyi Bezzi, Clinocera longipennis Mik, Paramesia riparia Robert, and Roederia czernyi rufipes Oldenberg. In addition to morphological evidence, molecular species concepts were investigated using a molecular phylogenetic divergence-based species delimitation (bPTP) and results confirmed the morphological conclusions. A key to species is presented and geographic distributions are mapped.

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