Catira
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. Oxytocin and arginine vasopressin systems in the domestication process
Abstract Domestication is of unquestionable importance to the technological revolution that has given rise to modern human societies. In this study, we analyzed the DNA and protein sequences of six genes of the oxytocin and arginine vasopressin systems (OXT-OXTR; AVP-AVPR1a, AVPR1b and AVPR2) in 40 placental mammals. These systems play an important role in t
Genet. Mol. Biol.. Publicado em: 26/03/2018
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2. Searching for ancient balanced polymorphisms shared between Neanderthals and Modern Humans
Abstract Hominin evolution is characterized by adaptive solutions often rooted in behavioral and cognitive changes. If balancing selection had an important and long-lasting impact on the evolution of these traits, it can be hypothesized that genes associated with them should carry an excess of shared polymorphisms (trans- SNPs) across recent Homo species. In
Genet. Mol. Biol.. Publicado em: 2018-03
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3. FOXP in Tetrapoda: Intrinsically Disordered Regions, Short Linear Motifs and their evolutionary significance
Abstract The FOXP subfamily is probably the most extensively characterized subfamily of the forkhead superfamily, playing important roles in development and homeostasis in vertebrates. Intrinsically disorder protein regions (IDRs) are protein segments that exhibit multiple physical interactions and play critical roles in various biological processes, includi
Genet. Mol. Biol.. Publicado em: 02/03/2017
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4. Oxytocin and arginine vasopressin receptor evolution: implications for adaptive novelties in placental mammals
Abstract Oxytocin receptor (OXTR) and arginine vasopressin receptors (AVPR1a, AVPR1b, and AVPR2) are paralogous genes that emerged through duplication events; along the evolutionary timeline, owing to speciation, numerous orthologues emerged as well. In order to elucidate the evolutionary forces that shaped these four genes in placental mammals and to reveal
Genet. Mol. Biol.. Publicado em: 08/08/2016
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5. Resposta ao trabalho de Kent e Santos: "'Os charruas vivem' nos Gaúchos: a vida social de uma pesquisa de 'resgate' genético de uma etnia indígena extinta no Sul do Brasil"
As atividades oriundas de ações humanas, incluindo pesquisas científicas, são estruturadas sob contextos individuais e coletivos. A artigo de Kent e Santos considera isso num cenário específico, mas ao descreverem tal fato eles também dão margem a ações interpretativas. O mais importante no trabalho dos autores é chamar a atenção para ciências
Horizontes Antropológicos. Publicado em: 2012-06
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6. Uniparental genetic markers in South Amerindians
A comprehensive review of uniparental systems in South Amerindians was undertaken. Variability in the Y-chromosome haplogroups were assessed in 68 populations and 1,814 individuals whereas that of Y-STR markers was assessed in 29 populations and 590 subjects. Variability in the mitochondrial DNA (mtDNA) haplogroup was examined in 108 populations and 6,697 pe
Genetics and Molecular Biology. Publicado em: 10/05/2012
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7. Homo sapiens, Homo neanderthalensis and the Denisova specimen: new insights on their evolutionary histories using whole-genome comparisons
After a brief review of the most recent findings in the study of human evolution, an extensive comparison of the complete genomes of our nearest relative, the chimpanzee (Pan troglodytes), of extant Homo sapiens, archaic Homo neanderthalensis and the Denisova specimen were made. The focus was on non-synonymous mutations, which consequently had an impact on p
Genet. Mol. Biol.. Publicado em: 2012
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8. Linking dopamine neurotransmission and neurogenesis: the evolutionary history of the NTAD (NCAM1-TTC12-ANKK1-DRD2) gene cluster
Genetic studies have long suggested the important role of the DRD2 gene in psychiatric disorders and behavior. Further research has shown a conjoined effect of genes in the Chr11q22-23 region, which includes the NCAM1, TTC12, ANKK1 and DRD2 genes, or NTAD cluster. Despite a growing need to unravel the role of this cluster, few studies have taken into account
Genet. Mol. Biol.. Publicado em: 2012
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9. The TP53 fertility network
The TP53 gene, first described in 1979, was identified as a tumor suppressor gene in 1989, when it became clear that its product, the p53 nuclear phosphoprotein, was frequently inactivated in many different forms of cancers. Nicknamed "guardian of the genome", TP53 occupies a central node in stress response networks. The p53 protein has a key role as transcr
Genet. Mol. Biol.. Publicado em: 2012
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10. Y-chromosome biallelic polymorphisms and native american population structure
It has been proposed that women had a higher migration rate than men throughout human evolutionary history. However, in a recent study of South American natives using mtDNA restriction fragment polymorphisms and Y-chromosome microsatellites we failed to detect a significant difference in estimates of migration rates between the sexes. As the high mutation ra
Publicado em: 2011
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11. Catira: Música, dança e poesia do mundo rural (Uberaba - Século XX),
Uberaba, a city of the nineteenth century, located in the Hinterland of rotten flour, inside Minas Gerais, has as a prominent feature of its economic and social relations the production of zebu cattle. We believe that the men to produce their social relations, produce culture as well, and in this context takes place catira as a popular cultural practice. Thi
Publicado em: 2010
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12. 8 - No Fio da Navalha: raça, genética e identidades
Parte do livro:Raça como questão: história, ciência e identidades no Brasil
Autor(es): Santos, Ricardo Ventura; Bortolini, Maria Cátira; Maio, Marcos Chor
Editora FIOCRUZ. Publicado em: 2010