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| Zanini,Rebeca; Deprá,Maríndia; Valente,Vera Lúcia da Silva. |
| ABSTRACT In several arthropod groups, male genitalia is the most important feature for species identification, especially in cryptic species. Cryptic species are very common in the Drosophila genus, and the Neotropical Drosophila willistoni species group is a good example. This group currently includes 24 species divided into three subgroups: alagitans, bocainensis and willistoni. There are six sibling species in the willistoni subgroup – D. willistoni, D. insularis, D. tropicalis, D. equinoxialis, D. pavlovskiana and D. paulistorum, which is a species complex composed of six semispecies – Amazonian, Andean-Brazilian, Centroamerican, Interior, Orinocan and Transitional. The objective of this study was to characterize male genitalia of the willistoni... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cryptic species; Drosophila willistoni subgroup; Drosophila paulistorum complex; Male genitalia; Semispecies. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000400323 |
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| Golombieski,Ronaldo Medeiros; Graichen,Daniel Ângelo Sgranzerla; Rocha,João Batista Teixeira da; Valente,Vera Lúcia da Silva; Loreto,Élgion Lúcio da Silva. |
| Selenium is an important dietary micronutrient and an essential component of selenoproteins and the active sites of some enzymes, although at high concentrations it is toxic. We investigated diphenyl diselenide ((C6H5)2Se2 ) for its effects on the developmental stages of Drosophila melanogaster and found that in the larval and pupae stages the toxic threshold for this compound when added to the banana-agar medium on which the larva were fed was 350 µmol. In adult flies, fed on the same media, there were no observable toxic effects below 500 µmol but there were toxic effects above 600 µmol, indicating that adult flies were more resistant to selenium intoxication. In larvae, a when diphenyl diselenide was present above the toxic threshold there was increased... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gene activation; Hsp83 gene; Selenium; Diphenyl diselenide. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000100022 |
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| Schmitz,Hermes José; Valente,Vera Lúcia da Silva. |
| Abstract Diptera is a megadiverse order, reaching its peak of diversity in Neotropics, although our knowledge of dipteran fauna from this region is grossly lacking. This applies even to the most studied families, such as Drosophilidae. Despite its prominence, most aspects of the biology of these insects are still poorly understood, especially those linked to natural communities. Field studies on drosophilids are highly biased towards fruit-breeding species. Flower-breeding drosophilids, however, are worldwide distributed, especially in tropical regions, although being mostly neglected. The present paper shows the results of a biodiversity inventory of flower-breeding drosophilids carried out in several localities in Brazil, based on samples of 125 plant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Drosophila; Flower-breeding drosophilids; Flower visitors; Host plants; Niche. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492019000100245 |
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| Döge,Jonas da Silva; Gottschalk,Marco Silva; Bizzo,Luís Eduardo Maestrelli; Oliveira,Sabrina Cassimiro Fonseca de; Schmitz,Hermes José; Valente,Vera Lúcia da Silva; Hofmann,Paulo Roberto Petersen. |
| The present paper brings together survey data from nine collection sites in Santa Catarina state, southern Brazil. Samples were obtained during about four years in forested, coastal and urban areas. Flies were attracted by fermented banana baits and captured in traps. Among the species of the genus Zygothrica Wiedemann 1830 collected, Zygothrica apopoeyi Burla 1956, Z. bilineata (Williston 1896), Z. dispar (Wiedemann 1830), Z./ lanceolata Burla 1956, Z. nigropleura Grimaldi 1987, and Z. poeyi (Sturtevant 1921) were recorded for the first time in Santa Catarina state and, except for Z. bilineata, also in southern Brazil. Apart from these species, we also collected Zygothrica hypandriata Burla 1956, Z. orbitalis (Sturtevant 1916) (as Z. parilis), Z.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Neotropics; New records; Species distribution. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000300003 |
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