Download Reticulate Evolution: Symbiogenesis, Lateral Gene Transfer, by Nathalie Gontier PDF

By Nathalie Gontier

Written for non-experts, this quantity introduces the mechanisms that underlie reticulate evolution. Chapters are both followed with glossaries that specify new terminology or timelines that place pioneering students and their significant discoveries of their ancient contexts. The contributing authors define the heritage and unique context of discovery of symbiosis, symbiogenesis, lateral gene move, hybridization or divergence with gene circulation and infectious heredity. via making use of key insights from the parts of molecular (phylo)genetics, microbiology, virology, ecology, systematics, immunology, epidemiology and computational technology, they show how reticulate evolution affects winning survival, health and speciation.

Reticulate evolution brings forth a problem to the normal Neo-Darwinian framework, which defines lifestyles because the final result of bifurcation and ramification styles introduced forth through the vertical mechanism of average choice. Reticulate evolution places ahead a development within the tree of existence that's characterised by way of horizontal mergings and lineage crossings triggered by means of symbiosis, symbiogenesis, lateral gene move, hybridization or divergence with gene circulation and infective heredity, making the “tree of existence” glance extra like a “web of life.” On an epistemological point, many of the capability during which hereditary fabric will be transferred horizontally demanding situations our vintage notions of devices and degrees of evolution, health, modes of transmission, linearity, groups and organic individuality.

The case reports provided learn subject matters together with the starting place of the eukaryotic mobilephone and its organelles via symbiogenesis; the foundation of algae via basic and secondary symbiosis and dinoflagellates via tertiary symbiosis; the superorganism and holobiont as devices of evolution; how endosymbiosis induces speciation in multicellular existence varieties; transferrable and non-transferrable plasmids and the way they symbiotically have interaction with their host; the capability through which professional- and eukaryotic organisms move genes laterally (bacterial transformation, transduction and conjugation in addition to transposons and different cellular genetic elements); hybridization and divergence with gene circulation in sexually-reproducing contributors; present (human) microbiome and viriome experiences that impression our wisdom about the evolution of organismal health and wellbeing and purchased immunity; and the way symbiosis and symbiogenesis might be modelled in computational evolution.

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Additional resources for Reticulate Evolution: Symbiogenesis, Lateral Gene Transfer, Hybridization and Infectious Heredity

Sample text

Communication need not involve spoken or signed language, it can also be of a biochemical kind. Reticulate evolution also raises fascinating questions on units and levels of selection as well as cooperation that extend the individual towards higher ranks such as the group, bacterial types, colonies, or species. This necessitates an ecological and overall hierarchical approach to evolution that enables scholars to conceptualize how individual and group behavior, higher and lower-level evolution, as well as higher- and lower-level interactions occur.

607849 Flavell AJ (1981) Did retroviruses evolve from transposable elements? Nature 289:10–11 Foster JA, McVey Neufeld KA (2013) Gut–brain axis: how the microbiome influences anxiety and depression. Trends Neurosci 36(5):305–312. 005 Frost LS, Leplae R, Summers AO, Toussaint A (2005) Mobile genetic elements: the agents of open source evolution. Nat Rev of Microbiology 3:722–732 Reticulate Evolution Everywhere 37 Gaudillière JP, Löwly I (eds) (2001) Heredity and infection: the history of disease transmission.

But as said, the relation between organismal diseases and the infectious agents that cause them additionally needs to be understood in terms of coevolution, symbiosis, and lateral gene transfer. Many bacteria and viruses “know” how to infect organisms, and many organisms “know” how to fight against or collaborate with the infectious agents. In other words, over the course of evolutionary history, infectious agents and their hosts have coevolved behavioral and biochemical repertoires to recognize and respond to one another.

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