Horizontal Gene Transfer Hgt
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Padrões de evolução genica e genomica em Moniliophthora perniciosa (Basiomicota, Agaricales), agente causal da vassoura de bruxa / Paterns of genomic evolution in Moniliophthora perniciosa (Basiomicota, Agaricales) causal agent of witche s broom disease
Moniliophthora perniciosa (Stahel) Aime &Phillips-Mora is a hemibiotrophic basidiomycete fungus that causes witches broom disease in cocoa (Theobroma cacao L.). This disease is characterized by the production of hyperplasic and hypertrophic stems and parthenogenetic fruits during biotrophic life-phasee, followed by necrosis of infected tissues during necrotr
Publicado em: 2010
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2. Insertion sequences as variability generators in the Mycoplasma hyopneumoniae and M. synoviae genomes
We have analyzed the sequenced genomes of three strains of Mycoplasma hyopneumoniae and one strain of M. synoviae, and have found three and two different transposable element families, respectively in each species. In M. hyopneumoniae, the Insertion Sequences of the IS4 family is represented by ISMHp1, a putatively active element. The IS3 family is represent
Genetics and Molecular Biology. Publicado em: 2007
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3. Lesões típicas da Doença de Chagas em aves com genoma alterado por integração de seqüências de minicírculos de kDNA de Trypanosoma cruzi
Acredita-se que a origem e evolução dos seres vivos foram antecedidas por uma complexa rede de interações entre moléculas, microrganismos e células em metazoários. Nesse processo, inúmeros eventos de rearranjo e transferência gênica teriam concorrido para o aumento da complexidade do genoma dos seres hoje existentes. O acúmulo de moléculas de DNA
Publicado em: 2006
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4. Horizontal gene transfer: A critical view
It has been suggested that horizontal gene transfer (HGT) is the “essence of phylogeny.” In contrast, much data suggest that this is an exaggeration resulting in part from a reliance on inadequate methods to identify HGT events. In addition, the assumption that HGT is a ubiquitous influence throughout evolution is questionable. Instead, rampant globa
National Academy of Sciences.
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5. The net of life: Reconstructing the microbial phylogenetic network
It has previously been suggested that the phylogeny of microbial species might be better described as a network containing vertical and horizontal gene transfer (HGT) events. Yet, all phylogenetic reconstructions so far have presented microbial trees rather than networks. Here, we present a first attempt to reconstruct such an evolutionary network, which we
Cold Spring Harbor Laboratory Press.
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6. Phylogenomic Analysis Demonstrates a Pattern of Rare and Ancient Horizontal Gene Transfer between Plants and Fungi[W]
Horizontal gene transfer (HGT) describes the transmission of genetic material across species boundaries and is an important evolutionary phenomenon in the ancestry of many microbes. The role of HGT in plant evolutionary history is, however, largely unexplored. Here, we compare the genomes of six plant species with those of 159 prokaryotic and eukaryotic spec
American Society of Plant Biologists.
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7. Massive horizontal transfer of mitochondrial genes from diverse land plant donors to the basal angiosperm Amborella
Several plants are known to have acquired a single mitochondrial gene by horizontal gene transfer (HGT), but whether these or any other plants have acquired many foreign genes is entirely unclear. To address this question, we focused on Amborella trichopoda, because it was already known to possess one horizontally acquired gene and because it was found in pr
National Academy of Sciences.
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8. HGT-DB: a database of putative horizontally transferred genes in prokaryotic complete genomes
The Horizontal Gene Transfer DataBase (HGT-DB) is a genomic database that includes statistical parameters such as G+C content, codon and amino-acid usage, as well as information about which genes deviate in these parameters for prokaryotic complete genomes. Under the hypothesis that genes from distantly related species have different nucleotide compositions,
Oxford University Press.
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9. Naphthalene and Donor Cell Density Influence Field Conjugation of Naphthalene Catabolism Plasmids
We examined transfer of naphthalene-catabolic genes from donor microorganisms native to a contaminated site to site-derived, rifampin-resistant recipient bacteria unable to grow on naphthalene. Horizontal gene transfer (HGT) was demonstrated in filter matings using groundwater microorganisms as donors. Two distinct but similar plasmid types, closely related
American Society for Microbiology.
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10. The Balance of Driving Forces During Genome Evolution in Prokaryotes
Genomes are shaped by evolutionary processes such as gene genesis, horizontal gene transfer (HGT), and gene loss. To quantify the relative contributions of these processes, we analyze the distribution of 12,762 protein families on a phylogenetic tree, derived from entire genomes of 41 Bacteria and 10 Archaea. We show that gene loss is the most important
Cold Spring Harbor Laboratory Press.
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11. On the evolution of cells
A theory for the evolution of cellular organization is presented. The model is based on the (data supported) conjecture that the dynamic of horizontal gene transfer (HGT) is primarily determined by the organization of the recipient cell. Aboriginal cell designs are taken to be simple and loosely organized enough that all cellular componentry can be altered a
National Academy of Sciences.
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12. Integron Diversity in Heavy-Metal-Contaminated Mine Tailings and Inferences about Integron Evolution
Integrons are horizontal gene transfer (HGT) systems containing elements necessary for site-specific recombination and expression of foreign DNA. The overall phylogenetic distribution of integrons and range of genes that can be transferred by integrons are unknown. This report contains an exploration of integrons in an environmental microbial community and a
American Society for Microbiology.