Distant horizontal gene transfer is rare for multiple families of prokaryotic insertion sequences
نویسندگان
چکیده
منابع مشابه
Prediction of Horizontal Gene Transfer of Laccase Gene; a Comparative Study of 30 Prokaryotic Genomes
Laccases are benzene diol: oxygen oxidoreductase, (EC 1.10.3.2) found in higher plants and microorganisms. They are copper containing enzymes that carry out one electron oxidation of phenolic compounds and reduce oxygen to water [ Couto et al., 2006; Gianfreda et al.,.1999], this reaction generates free radicals which may further cause hydration, disproportionation, and polymerization of substr...
متن کاملCauses of insertion sequences abundance in prokaryotic genomes.
Insertion sequences (ISs) are the smallest and most frequent transposable elements in prokaryotes where they play an important evolutionary role by promoting gene inactivation and genome plasticity. Their genomic abundance varies by several orders of magnitude for reasons largely unknown and widely speculated. The current availability of hundreds of genomes renders testable many of these hypoth...
متن کاملThe impact of long-distance horizontal gene transfer on prokaryotic genome size.
Horizontal gene transfer (HGT) is one of the most dominant forces molding prokaryotic gene repertoires. These repertoires can be as small as approximately 200 genes in intracellular organisms or as large as approximately 9,000 genes in large, free-living bacteria. In this article we ask what is the impact of HGT from phylogenetically distant sources, relative to the size of the gene repertoire....
متن کاملHorizontal 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 ...
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ژورنال
عنوان ژورنال: Molecular Genetics and Genomics
سال: 2008
ISSN: 1617-4615,1617-4623
DOI: 10.1007/s00438-008-0373-y