Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Genet. Mol. Biol. (1) Neotropical Ichthyology (1) Autor Barros,Bruno S. (1) Borghezan,Elio A. (1) Corso,Josmael (1) Freitas,Thales R.O. de (1) Gonçalves,Gislene L. (1) Pinto,Kalebe S. (1) Pires,Tiago H. S. (1) Stefanelli-Silva,Gabriel (1) Zuanon,Jansen (1) Mais... Palavra-chave Body color (2) Crypsis (2) Adaptation (1) Background matching (1) Crenuchus spilurus (1) Liolaemidae (1) Phenotypic plasticity (1) Pigmentation genes (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2020 (1) 2012 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Sequence variation in the melanocortin-1 receptor (MC1R) pigmentation gene and its role in the cryptic coloration of two South American sand lizards Genet. Mol. Biol. Corso,Josmael; Gonçalves,Gislene L.; Freitas,Thales R.O. de. In reptiles, dorsal body darkness often varies with substrate color or temperature environment, and is generally presumed to be an adaptation for crypsis or thermoregulation. However, the genetic basis of pigmentation is poorly known in this group. In this study we analyzed the coding region of the melanocortin-1-receptor (MC1R) gene, and therefore its role underlying the dorsal color variation in two sympatric species of sand lizards (Liolaemus) that inhabit the southeastern coast of South America: L. occipitalis and L. arambarensis. The first is light-colored and occupies aeolic pale sand dunes, while the second is brownish and lives in a darker sandy habitat. We sequenced 630 base pairs of MC1R in both species. In total, 12 nucleotide polymorphisms were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Adaptation; Body color; Crypsis; Liolaemidae; Pigmentation genes. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000100011 Does soil color affect fish evolution? Differences in color change rate between lineages of the sailfin tetra Neotropical Ichthyology Pinto,Kalebe S.; Pires,Tiago H. S.; Stefanelli-Silva,Gabriel; Barros,Bruno S.; Borghezan,Elio A.; Zuanon,Jansen. ABSTRACT Several organisms match their skin color to the prevalent background color, granting crypsis against predators. The rate at which body color changes occur varies among organisms as a result of physiological constraints and adaptation to variation in contrasts between objects and the environmental background. Faster darkening of body color is favored in environments that show higher amounts of contrast between common objects and the prevailing background. Soil types in Amazon forest streams (igarapés) create distinct environments with respect to the amount of contrast, a result of the amount of sand and clay, which offers different contrasts against dead leaves. Here, we investigated differences in the rates of color change among populations of the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Background matching; Body color; Crenuchus spilurus; Crypsis; Phenotypic plasticity. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000200204 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco