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Expressão de genes candidatos à determinação sexual em Astyanax scabripinnis (Teleostei: characidae) em animais com e sem cromossomos B
(Universidade Federal de São Carlos, 2019-03-01)
Fish are animals present in a wide variety of habitats and are distributed all over the world. The diversity of forms, behaviors and niches associated with the evolutionary characteristics of these animals make them important ...
A colonização de uma área por espécies de abelhas sem ferrão. Um estudo de caso: Partamona helleri (Friese, 1900) (Hymenoptera : Apidae: Meliponini)
(Universidade Federal de São Carlos, 2011-02-28)
Bees are obligatory floral visitors and are considered the main pollinators of angiosperms. The increasing interest in the services of bees has led to efforts to develop management strategies for conservation purposes. The ...
Origem das linhagens mitocondriais nas abelhas africanizadas (Apis mellifera L.) do Brasil
(Universidade Federal de São Carlos, 2012-03-30)
The Africanization process of Apis mellifera has raised several questions about the genetic makeup of resulting populations. This study aimed to identify the number, frequency and distribution of different mitochondrial ...
O padrão de dispersão é sexo-assimétrico nos Euglossíneos (Hymenoptera: Apidae: Euglossini)? Um estudo de caso: Euglossa cordata.
(Universidade Federal de São Carlos, 2009-07-01)
The Tribe Euglossini consists of relatively large bees, with metallic skin and bright color. Their extremely long tong enables them to use nectar resources that are inaccessible to other bees. Equipped with high capacity ...
DNA Barconding do gênero Schizodon (Characiformes, Anostomidae)
(Universidade Federal de São Carlos, 2018-08-28)
Fish of the Schizodon genus have important representation in the largest South American basins. Historically they underwent through several taxonomic revisions, due to their high phenotypic plasticity and the ontogenetic ...
Toxicidade aguda e respostas metabólicas e hematológicas do pacu (Piaractus mesopotamicus, Holmberg, 1887) exposto a concentração sub-letal de triclorfon e recuperação
(Universidade Federal de São Carlos, 2010-05-28)
Parasitosis in fishes is a relevant problem in aquaculture. Besides, the organophosphate trichlorfon (2,2,2-trichloro-1-hydroxyethyl phosphonate) is amongst the most used medicine in farming of fishes. Due to trichlorfon ...
Investigação da ocorrência de eventos epigenéticos em Haemonchus contortus e sua relação com a resistência ao anti-helmíntico monepantel
(Universidade Federal de São Carlos, 2019-02-27)
Parasitism by gastrointestinal nematodes, mainly by Haemonchus contortus, is the major obstacle to sheep production. Anthelmintic treatment is the main method used by farmers to control worms. However, parasites acquire ...
Genes e variantes genéticas na regulação da eficiência alimentar de gado Nelore
(Universidade Federal de São Carlos, 2019-05-08)
Feeding accounts for most of the costs in beef cattle production. To reduce it, as well as the environmental impact, greenhouse gas emission, and land occupation have been mandatory to improve the animal feed efficiency. ...
Análise multilocus de parâmetros populacionais, evolução molecular e diferenciação em espécies de moscas-das-frutas do grupo fraterculus (Diptera, Tephritidae)
(Universidade Federal de São Carlos, 2010-08-31)
The genus Anastrepha which is endemic to the Neotropical region has big economic importance to cause great losses in fruit production. We studied three species of the cryptic group fraterculus: Anastrepha fraterculus, A. ...
Análise de herança da resistência à ferrugem da cana-de-açúcar P. melanocephala H. & P. Syd.
(Universidade Federal de São Carlos, 2004-06-30)
Sugarcane rust (Puccinia melanocephala) is a major disease distributed throught the world, causing yield losses of 50% in conducive environments. Resistance is an essential trait to control rust in commercial cultivars ...