Horizontal Gene Transfer, Dispersal and Haloarchaeal Speciation

The Halobacteria are a well-studied archaeal class and numerous investigations are showing how their diversity is distributed amongst genomes and geographic locations. Evidence indicates that recombination between species continuously facilitates the arrival of new genes, and within species, it is f...

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Main Authors: R. Thane Papke, Paulina Corral, Nikhil Ram-Mohan, Rafael R. de la Haba, Cristina Sánchez-Porro, Andrea Makkay, Antonio Ventosa
Format: Article
Language:English
Published: MDPI AG 2015-05-01
Series:Life
Subjects:
Online Access:http://www.mdpi.com/2075-1729/5/2/1405
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author R. Thane Papke
Paulina Corral
Nikhil Ram-Mohan
Rafael R. de la Haba
Cristina Sánchez-Porro
Andrea Makkay
Antonio Ventosa
author_facet R. Thane Papke
Paulina Corral
Nikhil Ram-Mohan
Rafael R. de la Haba
Cristina Sánchez-Porro
Andrea Makkay
Antonio Ventosa
author_sort R. Thane Papke
collection DOAJ
description The Halobacteria are a well-studied archaeal class and numerous investigations are showing how their diversity is distributed amongst genomes and geographic locations. Evidence indicates that recombination between species continuously facilitates the arrival of new genes, and within species, it is frequent enough to spread acquired genes amongst all individuals in the population. To create permanent independent diversity and generate new species, barriers to recombination are probably required. The data support an interpretation that rates of evolution (e.g., horizontal gene transfer and mutation) are faster at creating geographically localized variation than dispersal and invasion are at homogenizing genetic differences between locations. Therefore, we suggest that recurrent episodes of dispersal followed by variable periods of endemism break the homogenizing forces of intrapopulation recombination and that this process might be the principal stimulus leading to divergence and speciation in Halobacteria.
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spelling doaj.art-f22ad4647b4e4b5fb6573ac7e177129f2022-12-22T04:01:34ZengMDPI AGLife2075-17292015-05-01521405142610.3390/life5021405life5021405Horizontal Gene Transfer, Dispersal and Haloarchaeal SpeciationR. Thane Papke0Paulina Corral1Nikhil Ram-Mohan2Rafael R. de la Haba3Cristina Sánchez-Porro4Andrea Makkay5Antonio Ventosa6Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT 06269, USADepartment of Microbiology and Parasitology, University of Seville, 41004 Seville, SpainDepartment of Molecular and Cell Biology, University of Connecticut, Storrs, CT 06269, USADepartment of Microbiology and Parasitology, University of Seville, 41004 Seville, SpainDepartment of Microbiology and Parasitology, University of Seville, 41004 Seville, SpainDepartment of Molecular and Cell Biology, University of Connecticut, Storrs, CT 06269, USADepartment of Microbiology and Parasitology, University of Seville, 41004 Seville, SpainThe Halobacteria are a well-studied archaeal class and numerous investigations are showing how their diversity is distributed amongst genomes and geographic locations. Evidence indicates that recombination between species continuously facilitates the arrival of new genes, and within species, it is frequent enough to spread acquired genes amongst all individuals in the population. To create permanent independent diversity and generate new species, barriers to recombination are probably required. The data support an interpretation that rates of evolution (e.g., horizontal gene transfer and mutation) are faster at creating geographically localized variation than dispersal and invasion are at homogenizing genetic differences between locations. Therefore, we suggest that recurrent episodes of dispersal followed by variable periods of endemism break the homogenizing forces of intrapopulation recombination and that this process might be the principal stimulus leading to divergence and speciation in Halobacteria.http://www.mdpi.com/2075-1729/5/2/1405Haloarchaeaspeciationbiogeographyhomologous recombinationhorizontal gene transferpopulation genetics
spellingShingle R. Thane Papke
Paulina Corral
Nikhil Ram-Mohan
Rafael R. de la Haba
Cristina Sánchez-Porro
Andrea Makkay
Antonio Ventosa
Horizontal Gene Transfer, Dispersal and Haloarchaeal Speciation
Life
Haloarchaea
speciation
biogeography
homologous recombination
horizontal gene transfer
population genetics
title Horizontal Gene Transfer, Dispersal and Haloarchaeal Speciation
title_full Horizontal Gene Transfer, Dispersal and Haloarchaeal Speciation
title_fullStr Horizontal Gene Transfer, Dispersal and Haloarchaeal Speciation
title_full_unstemmed Horizontal Gene Transfer, Dispersal and Haloarchaeal Speciation
title_short Horizontal Gene Transfer, Dispersal and Haloarchaeal Speciation
title_sort horizontal gene transfer dispersal and haloarchaeal speciation
topic Haloarchaea
speciation
biogeography
homologous recombination
horizontal gene transfer
population genetics
url http://www.mdpi.com/2075-1729/5/2/1405
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