Encontrados 15 documentos, a visualizar página 1 de 2
Opsin genes: research perspectives with Neotropical cichlids (Perciformes: Cich...
Fabrin, Thomaz Mansini Carrenho; Gasques, Luciano Seraphim; Prioli, Sonia Maria Alves Pinto; Prioli, Alberto JoséVision not only plays an important role in the behavior and exploration capacity of new ecology niches but also influences the evolution of species exposed to the heterogeneity of light. Floodplain environments have high habitat heterogeneity and, thus, different light gradients. Cichlids are a group of vertebrates that has stirred interest in evolutionary studies due to their morphological and behavioral diver...
Molecular markers in studies on fish parasites (Platyhelminthes): Review
Graça, Rodrigo Junio da; Fabrin, Thomaz Mansini Carrenho; Gasques, Luciano Seraphim; Prioli, Sônia Maria Alves Pinto; Prioli, Alberto JoséStudies with molecular markers are currently more common for all groups of living organisms. Molecular techniques used in Platyhelminthes parasites of fishes do not merely reveal complex life cycles, but are important for species distinction and the elucidation of the phylogenetic hypothesis. Current research verified which molecular markers were mainly used phylogenetic studies on Platyhelminthes parasites of ...
Prospecting molecular markers to distinguish Cichla kelberi, C. monoculus and C...
Gasques, Luciano Seraphim; Prioli, Sônia Maria Alves Pinto; Prioli, Alberto José; Gonçalves, Daniela Dib; Fabrin, Thomaz Manzini CarrenhoPeacock bass, a fish of the genus Cichla, is an exotic species from the upper river Paraná floodplain in which the species Cichla kelberi and C. piquiti have been confirmed, coupled to the specie C. monoculus upstream in the Capivara and Taquaruçu dams. The introduction of this genus has caused negative impacts on the diversity of native species. Current research prospects DNA sequences capable of distinguishin...
Identificação molecular de Cichla (Perciformes: Cichlidae) introduzidas nos res...
Briñez, Boris; Júlio Júnior, Horacio Ferreira; Prioli, Sonia Maria Alves Pinto; Maniglia, Thiago Cintra; Prioli, Alberto JoséEspécies de tucunaré foramn introduzidas em inúmeras bacias hidrográficas da América do Sul e em outras regiões do planeta, principalmente devido as suas características esportivas, de peixe lutador. Revisão recente das espécies do gênero Cichla mostraram que as espécies que foram introduzidas nos reservatórios das regiões Sul, Sudeste e Nordeste, são duas espécies novas, descritas como Cichla kelberi (tucunaré...
Molecular variants in populations of Bryconamericus aff. iheringii (Characiform...
Mazeti, Camila Montoro; Maniglia, Thiago Cintra; Prioli, Sônia Maria Alves Pinto; Prioli, Alberto JoséThere are evidences that Bryconamericus aff. iheringii represents a species complex. DNA molecular markers have been effective in studies on phylogeny, taxonomy, and identification of cryptic species. In this study, partial sequences of genes of ATPase 6 and 8 were used to assess genetic diversity within and among populations of B. aff. iheringii of sub-basins of Tibagi, Pirapó and Ivaí rivers, belonging to the...
Spar genetic analysis of two invasive species of Cichla (Tucunaré) (Perciformes...
Almeida-Ferreira, Giovanna Caputo; Oliveira, Alessandra Valéria de; Prioli, Alberto José; Prioli, Sônia Maria Alves PintoThe introduction of exotic species in lake ecosystems has been greatly highlighted in the literature worldwide. Since introduction may threaten diversity of native fish, the issue turns up to be of paramount importance. Ecological effects may be predation, competition, parasitism or genetic, that is, changes in the genetic pool of populations owing to the occurrence of hybrids. Although the Tucunaré fish (Cichl...
Evaluation of maternal effect on inheritance of aluminum-tolerance in maize
Prioli, Alberto José; Schneider, Tânia Aparecida Amaducci; Hoshino, Andrea Akemi; Bravo, Juliana Pereira; Boni, Talge AiexOpen land, called cerrado, almost occupies one fourth of Brazilian territory and is characterized by acid soils with high aluminum saturation. The productivity of non-naturalized plants is reduced since growth of roots is greatly restrained. The use of aluminum-tolerant genotypes together with liming is a very promising strategy for the agricultural use of open land. Knowledge of inheritance mechanisms of alumi...
Heteroplasmy in the T-urf13 mitochondrial gene of the Texas cytoplasm of maize
Sekine, Elizabete Satsuki; Castro, Laura Leal de; Prioli, Alberto José; Prioli, Sônia Maria Alves Pinto; Prioli, Laudenir MariaIn maize (Zea mays L.), the Texas (T) cytoplasm carries male sterility (cms-T) and susceptibility to host-specific fungal toxins and to the insecticide methomyl, traits of great interest both for basic research and plant breeding. These traits are apparently inseparable, and they are directly associated with the T-urf13 mitochondrial gene, which encodes a 13-kilodalton protein (URF13). Reversion to male fertili...
Morphological and molecular characterization of Corbicula (Mollusca, Bilvalvia)...
Bagatini, Yara Moretto; Panarari, Renata de Souza; Higuti, Janet; Benedito-Cecilio, Evanilde; Prioli, Alberto José; Prioli, Sonia Maria Alves PintoThe purpose of the present study was to verify, using RAPD and ISSR molecular techniques associated with the morphological characterization of bivalve shells, if the morphologically distinct specimens of Corbicula fluminea sampled at Rosana Reservoir belong to different species. The foot muscle tissue of the three groups (G1, G2, and G3) of Corbicula was removed and frozen in liquid nitrogen to the DNA analyze....
Obtaining 5S rDNA molecular markers for native and invasive Cichla populations ...
Oliveira, Viviane Fátima de; Oliveira, Alessandra Valéria de; Prioli, Alberto José; Prioli, Sônia Maria Alves PintoThe 5S rDNA gene is informative and has high conservation rates along the eukaryotic genome, having unique hereditary characteristics. Molecular studies with the 5S rDNA gene have been carried out with several groups, including some species of fish, aiming at solving phylogenetic relationship problems, ancestral patterns and genetic diversity among groups in natural populations. Species of the Cichla genus, int...