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Reticulate Evolution and Marine Organisms: The Final Frontier?

The role that reticulate evolution (i.e., via lateral transfer, viral recombination and/or introgressive hybridization) has played in the origin and adaptation of individual taxa and even entire clades continues to be tested for all domains of life. Though falsified for some groups, the hypothesis o...

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Detalles Bibliográficos
Autores principales: Arnold, Michael L., Fogarty, Nicole D.
Formato: Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2769149/
https://www.ncbi.nlm.nih.gov/pubmed/19865522
http://dx.doi.org/10.3390/ijms10093836
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author Arnold, Michael L.
Fogarty, Nicole D.
author_facet Arnold, Michael L.
Fogarty, Nicole D.
author_sort Arnold, Michael L.
collection PubMed
description The role that reticulate evolution (i.e., via lateral transfer, viral recombination and/or introgressive hybridization) has played in the origin and adaptation of individual taxa and even entire clades continues to be tested for all domains of life. Though falsified for some groups, the hypothesis of divergence in the face of gene flow is becoming accepted as a major facilitator of evolutionary change for many microorganisms, plants and animals. Yet, the effect of reticulate evolutionary change in certain assemblages has been doubted, either due to an actual dearth of genetic exchange among the lineages belonging to these clades or because of a lack of appropriate data to test alternative hypotheses. Marine organisms represent such an assemblage. In the past half-century, some evolutionary biologists interested in the origin and trajectory of marine organisms, particularly animals, have posited that horizontal transfer, introgression and hybrid speciation have been rare. In this review, we provide examples of such genetic exchange that have come to light largely as a result of analyses of molecular markers. Comparisons among these markers and between these loci and morphological characters have provided numerous examples of marine microorganisms, plants and animals that possess the signature of mosaic genomes.
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spelling pubmed-27691492009-10-28 Reticulate Evolution and Marine Organisms: The Final Frontier? Arnold, Michael L. Fogarty, Nicole D. Int J Mol Sci Review The role that reticulate evolution (i.e., via lateral transfer, viral recombination and/or introgressive hybridization) has played in the origin and adaptation of individual taxa and even entire clades continues to be tested for all domains of life. Though falsified for some groups, the hypothesis of divergence in the face of gene flow is becoming accepted as a major facilitator of evolutionary change for many microorganisms, plants and animals. Yet, the effect of reticulate evolutionary change in certain assemblages has been doubted, either due to an actual dearth of genetic exchange among the lineages belonging to these clades or because of a lack of appropriate data to test alternative hypotheses. Marine organisms represent such an assemblage. In the past half-century, some evolutionary biologists interested in the origin and trajectory of marine organisms, particularly animals, have posited that horizontal transfer, introgression and hybrid speciation have been rare. In this review, we provide examples of such genetic exchange that have come to light largely as a result of analyses of molecular markers. Comparisons among these markers and between these loci and morphological characters have provided numerous examples of marine microorganisms, plants and animals that possess the signature of mosaic genomes. Molecular Diversity Preservation International (MDPI) 2009-09-03 /pmc/articles/PMC2769149/ /pubmed/19865522 http://dx.doi.org/10.3390/ijms10093836 Text en © 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. http://creativecommons.org/licenses/by/3.0 This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Review
Arnold, Michael L.
Fogarty, Nicole D.
Reticulate Evolution and Marine Organisms: The Final Frontier?
title Reticulate Evolution and Marine Organisms: The Final Frontier?
title_full Reticulate Evolution and Marine Organisms: The Final Frontier?
title_fullStr Reticulate Evolution and Marine Organisms: The Final Frontier?
title_full_unstemmed Reticulate Evolution and Marine Organisms: The Final Frontier?
title_short Reticulate Evolution and Marine Organisms: The Final Frontier?
title_sort reticulate evolution and marine organisms: the final frontier?
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2769149/
https://www.ncbi.nlm.nih.gov/pubmed/19865522
http://dx.doi.org/10.3390/ijms10093836
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