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	Provedor de dados Genet. Mol. Biol. (1) Iheringia, Sér. Zool. (1) Autor Valente,Vera Lucia da Silva (2) Fantinel,Carina da Conceição (1) Herédia,Fabiana (1) Loreto,Élgion Lucio da Silva (1) Rohde,Claudia (1) Sassi,Adriana Koslovski (1) Silva,Norma Machado da (1) Valiati,Vitor Hugo (1) Mais... Palavra-chave Drosophila willistoni (1) Drosophilids (1) Gypsy (1) Niche breadth (1) Niche overlap (1) P (1) Transposable element (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2005 (2) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Transposable elements P and gypsy in natural populations of Drosophila willistoni Genet. Mol. Biol. Sassi,Adriana Koslovski; Herédia,Fabiana; Loreto,Élgion Lucio da Silva; Valente,Vera Lucia da Silva; Rohde,Claudia. The presence and integrity of the P transposon and the gypsy retrotransposon in the genome of 18 samples of natural Drosophila willistoni populations collected from a large area of South America were Southern blot screened using Drosophila melanogaster probes. The aim of this screening was provide further knowledge-base on the geographical distribution of D. willistoni and to carry out an inter-population analysis of the P and gypsy elements present in the genomes of the populations analyzed. The fragment patterns obtained indicate that both the P and gypsy elements are ancient in the D. willistoni genome, but whereas the gypsy retroelement appears to be invariable and stable the P element varies between populations and appears to still have some capacity... Tipo: Info:eu-repo/semantics/article Palavras-chave: Drosophila willistoni; Transposable element; P; Gypsy. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000500013 Ecology of colonizing populations of the figfly Zaprionus indianus (Diptera, Drosophilidae) in Porto Alegre, Southern Brazil Iheringia, Sér. Zool. Silva,Norma Machado da; Fantinel,Carina da Conceição; Valente,Vera Lucia da Silva; Valiati,Vitor Hugo. Ecological parameters such as trophic niche overlap and niche breadth were computed from the frequency of all drosophilid species collected in 2001 and 2002, in the urban area of Porto Alegre city, Brazil. Independently of place, drosophilids community composition and components breeding or feeding sites, the highest frequencies of Zaprionus indianus (Gupta, 1970) were obtained during seasons with higher average temperatures, especially during summer. From a total of the 19,146 individuals of Z. indianus sampled, 80% were found in this season. The data of trophic niche breadth suggest a higher opportunism of adult flies in feeding substrate use, but the females are still selective in oviposition substrate choice. For the values of niche overlap, only for... Tipo: Info:eu-repo/semantics/article Palavras-chave: Drosophilids; Niche overlap; Niche breadth. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212005000300002 Registros recuperados: 2 Primeira ... 1 ... Última

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