Phylogenetic validation of horizontal gene transfer?
نویسندگان
چکیده
منابع مشابه
Horizontal Gene Transfer
Horizontal gene transfer (HGT) is the movement of genetic information between organisms, a process that includes the spread of antibiotic resistance genes among bacteria (except for those from parent to offspring), fueling pathogen evolution. Many resistance genes evolved long ago in natural environments with no anthropogenic influence but these genes are now rapidly spreading to and among huma...
متن کاملInferring Horizontal Gene Transfer
Horizontal or Lateral Gene Transfer (HGT or LGT) is the transmission of portions of genomic DNA between organisms through a process decoupled from vertical inheritance. In the presence of HGT events, different fragments of the genome are the result of different evolutionary histories. This can therefore complicate the investigations of evolutionary relatedness of lineages and species. Also, as ...
متن کاملHorizontal gene transfer and phylogenetics.
The initial analysis of complete genomes has suggested that horizontal gene transfer events are very frequent between microorganisms. This could potentially render the inference, and even the concept itself, of the organismal phylogeny impossible. However, a coherent phylogenetic pattern has recently emerged from an analysis of about a hundred genes, the so-called 'core', strongly suggesting th...
متن کاملHorizontal gene transfer in plants.
Horizontal gene transfer (HGT) has played a major role in bacterial evolution and is fairly common in certain unicellular eukaryotes. However, the prevalence and importance of HGT in the evolution of multicellular eukaryotes remain unclear. Recent studies indicate that plant mitochondrial genomes are unusually active in HGT relative to all other organellar and nuclear genomes of multicellular e...
متن کاملHorizontal Gene Transfer in Evolution
The concept of horizontal or lateral gene transfer (the non-genealogical transmission of genetic material between organisms) was introduced in 1990s to explain the observed incongruence in phylogenetic reconstructions using different genes. Today, horizontal gene transfer is accepted as an important force modulating evolution of Bacteria, Archaea and unicellular eukaryotes, and evidence is risi...
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ژورنال
عنوان ژورنال: Nature Genetics
سال: 2004
ISSN: 1061-4036
DOI: 10.1038/ng1004-1028a