Ancient and recent lateral gene transfers
have been reported to occur in Bdellovibrio spp., and this may play a crucial role in their evolution probably leading to the development of unique features that can impact on their predatory lifestyle [5, 7, 8].
(30) Philippe and Forterre (31) demonstrated that the phylogenies were highly confusing due to the combining effects of gene duplication, gene loss, lateral gene transfer
, and tree reconstruction artifacts.
This appears then to be an example of lateral gene transfer
, as Entamoeba is not a close relative of either of these eubacteria (Rosenthal et al., 1997; Doolittle, 1998, 1999; Muller, 1998; de Koning et al., 2000; Field et at., 2000; Nixon et at., 2002).
Contributors also cover basic evolutionary systems biology, the origin of new genes, lateral gene transfer
, the evolution of genomic expression, the evolution of proteome complexity and diversity, genomic redundancy and dispensability, genome defense, sex-biased genomic expression, sex chromosome origins and evolution, molecular signatures of adaptive evolution, gene networks and natural selection, and human evolutionary genomics.
The finding has important biomedical implications because such gene-swapping, or lateral gene transfer
, is the way many pathogenic bacteria pick up antibiotic resistance or become virulent.
One difficulty stems from microbial infidelity known as horizontal or lateral gene transfer
. As scientists tally up all the genes of more and more microbes, they're realizing that bacteria and other single-celled creatures regularly pick up genetic material from organisms outside their species, even distant relatives.
Phylogeographic reconstruction of a bacterial species with high levels of lateral gene transfer
. BMC Biol.
A further 14 papers are specialist articles discussing lateral gene transfer
and the nature of the domains, nanoarchaeota, mechanisms of rearrangement and change in Sulfolobus genomes, plasmids, possible role of integration mechanisms in genome evolution, genetic properties of Sulfolobus acidocaldarius and relate Archaea, transcriptional regulation in Haloarchaea, translational mechanisms and protein synthesis, glycolytic pathways of Archaea, metabolism of inorganic sulfur compounds in Archaea, methylation of metalloids by methanoarchaea, and other topics.
Molecular evidence of lateral gene transfer
in rpoB gene of Mycobacterium yongonense strains via multilocus sequence analysis.
yongonense with similar characteristics and suggested that the recent acquisition of the rpoB gene resulted from a lateral gene transfer
event from M.
highlight pertinent points about how stochastic events can lead organisms to acquire adaptive advantages through lateral gene transfer