Ancient Dna
Mostrando 1-12 de 264 artigos, teses e dissertações.
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1. Sugar derived from genetically modified sugarcane
Abstract Sugar is an ancient food and currently one of the most used ingredients in human nutrition and in the food industry. In tropical regions, sugar is produced mainly from sugarcane, while temperate countries produce sugar preferably from sugar beets. Due to its widespread use, the forthcoming adoption of genetically modified (GM) sugarcane varieties ma
Food Sci. Technol. Publicado em: 2021-03
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2. Engineering biodiversity as a model for the species conservation
Abstract: Early humans have domesticated plant and animal species based on ancient empirical concepts (Darwin 1868, 1876). In 1886, Mendel established a new paradigm of hereditary laws (Mendel 1866, 1870, 1950) based on genotypic and phenotypic traits of cross-compatible species, establishing a complex breeding technology that is currently utilized for the d
An. Acad. Bras. Ciênc.. Publicado em: 30/09/2019
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3. [PROVISIONAL] Low cytomolecular diversification in the genus Stylosanthes Sw. (Papilionoideae, Leguminosae)
Abstract Stylosanthes (Papilionoideae, Leguminosae) is a predominantly neotropical genus with ~ 48 species that includes worldwide important forage species. This study presents the chromosome number and morphology of eight species of the genus Stylosanthes (S. acuminata, S. gracilis, S. grandifolia, S. guianensis, S. hippocampoides, S. pilosa, S. macrocephal
Genet. Mol. Biol.. Publicado em: 19/08/2019
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4. Analysis of COI and ITS2 regions of DNA obtained from Paragonimus westermani eggs in ancient coprolites on Joseon dynasty mummies
The genetic information of ancient Paragonimus westermani, the oriental lung fluke infecting over 20 million people worldwide, has not been thoroughly investigated thus far. We analysed genetic markers (COI and ITS2) of P. westermani from coprolite specimens (n = 6) obtained from 15th to 18th century Korean mummies. Our results indicated that all P. westerma
Mem. Inst. Oswaldo Cruz. Publicado em: 16/05/2019
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5. Morphological, Chemical and Molecular Characterization of ‘Old olive’ (Olea europaea L.) from Montenegro
ABSTRACT Thousands of years of tradition of olive cultivation in Montenegro is witnessed with the ‘Old olive’ estimated to be more than 2000 years old. ‘Old olive’ draws attention to its genetic potential and the relation to the closest grown olive cultivars. Therefore, the aim of this paper was to give the basic description of ‘Old olive’ (throu
Braz. arch. biol. technol.. Publicado em: 14/11/2018
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6. Phylogeographic analyses of the pampas cat (Leopardus colocola; Carnivora, Felidae) reveal a complex demographic history
Abstract The pampas cat is a small felid that occurs in open habitats throughout much of South America. Previous studies have revealed intriguing patterns of morphological differentiation and genetic structure among its populations, as well as molecular evidence for hybridization with the closely related L. tigrinus. Here we report phylogeographic analyses e
Genet. Mol. Biol.. Publicado em: 2018
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7. Using ancient DNA to unravel taxonomic puzzles: the identity of Deuterodon pedri (Ostariophysi: Characidae)
RESUMO Uma identificação acurada é fundamental para qualquer estudo que explora a biodiversidade. Infelizmente, espécimes de museu descritos há mais de cem anos, algumas vezes não são informativos o suficiente para uma identificação precisa da espécie representada pelo tipo. O uso de DNA antigo pode ajudar a resolver problemas taxonômicos, quando
Neotrop. ichthyol.. Publicado em: 03/04/2017
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8. Insights from paleomicrobiology into the indigenous peoples of pre-colonial America - A Review
This review investigates ancient infectious diseases in the Americas dated to the pre-colonial period and considers what these findings can tell us about the history of the indigenous peoples of the Americas. It gives an overview, but focuses on four microbial pathogens from this period: Helicobacter pylori, Mycobacterium tuberculosis, Trypanosoma cruzi and
Mem. Inst. Oswaldo Cruz. Publicado em: 2014-04
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9. 18. Paleoparasitology and Ancient DNA
Parte do livro:Foundations of Paleoparasitology
Autor(es): Dittimar, Katharina
Editora FIOCRUZ. Publicado em: 2014
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10. 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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11. Scorpions from the primeval subgenus Archaeotityus produce putative homologs of Tityus serrulatus toxins active on voltage-gated sodium channels
It has been proposed that the subgenus Archaeotityus comprises the most ancient species group within the medically important scorpion genus Tityus. cDNA encoding sodium-channel active toxins from the type species of this subgenus, Tityus clathratus (central Venezuela), have been isolated and sequenced. Two cDNAs were retrieved that encoded 61 amino acid-long
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 2012
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12. Phylogeny, biogeography and divergence times in Passiflora (Passifloraceae)
As part of a long-term investigation on the evolution of Passiflora L., we investigated the divergence ages of the genus and diversification of its subgenera, relating them with biogeographical and/or historical events, and other characteristics of this taxon. The main aim of the present work was to evaluate the biogeographic distribution of this genus to be
Genet. Mol. Biol.. Publicado em: 2012