Inferring and Validating Horizontal Gene Transfer Events Using Bipartition Dissimilarity
نویسندگان
چکیده
منابع مشابه
Inferring and validating horizontal gene transfer events using bipartition dissimilarity.
Horizontal gene transfer (HGT) is one of the main mechanisms driving the evolution of microorganisms. Its accurate identification is one of the major challenges posed by reticulate evolution. In this article, we describe a new polynomial-time algorithm for inferring HGT events and compare 3 existing and 1 new tree comparison indices in the context of HGT identification. The proposed algorithm c...
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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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This article addresses the problem of detection of horizontal gene transfers (HGT) in evolutionary data. We describe a new method allowing to predict the ways of possible HGT events which may have occurred during the evolution of a group of considered organisms. The proposed method proceeds by establishing differences between topologies of species and gene phylogenetic trees. Then, it uses a le...
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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...
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ژورنال
عنوان ژورنال: Systematic Biology
سال: 2010
ISSN: 1076-836X,1063-5157
DOI: 10.1093/sysbio/syp103