How reticulated are species?

Many groups of closely related species have reticulate phylogenies. Recent genomic analyses are showing this in many insects and vertebrates, as well as in microbes and plants. In microbes, lateral gene transfer is the dominant process that spoils strictly tree‐like phylogenies, but in multicellular...

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Veröffentlicht in:	BioEssays Jg. 38; H. 2; S. 140 - 149
Hauptverfasser:	Mallet, James, Besansky, Nora, Hahn, Matthew W
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	United States Published for ICSU Press by Cambridge University Press 01.02.2016 Blackwell Publishing Ltd Wiley Subscription Services, Inc John Wiley and Sons Inc
Schlagworte:	admixture ancestry Animals Disease control Eukaryota - genetics eukaryotic cells Evolution & development Evolution, Molecular evolutionary adaptation Gene Transfer, Horizontal - genetics Genetic Speciation Genetically modified organisms Genomics - methods homoplasy horizontal gene transfer insects Insights & s introgression microorganisms Organisms, Genetically Modified - genetics Pest control pests phylogenetic discordance Phylogeny Plants - genetics Speciation species concepts tree of life vertebrates admixture phylogenetic discordance species concepts introgression tree of life homoplasy speciation
ISSN:	0265-9247, 1521-1878, 1521-1878
Online-Zugang:	Volltext
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Zusammenfassung:	Many groups of closely related species have reticulate phylogenies. Recent genomic analyses are showing this in many insects and vertebrates, as well as in microbes and plants. In microbes, lateral gene transfer is the dominant process that spoils strictly tree‐like phylogenies, but in multicellular eukaryotes hybridization and introgression among related species is probably more important. Because many species, including the ancestors of ancient major lineages, seem to evolve rapidly in adaptive radiations, some sexual compatibility may exist among them. Introgression and reticulation can thereby affect all parts of the tree of life, not just the recent species at the tips. Our understanding of adaptive evolution, speciation, phylogenetics, and comparative biology must adapt to these mostly recent findings. Introgression has important practical implications as well, not least for the management of genetically modified organisms in pest and disease control.
Bibliographie:	http://dx.doi.org/10.1002/bies.201500149 Broad Insititute of Harvard and MIT BBSRC NIH - No. R01 AI76584 ArticleID:BIES201500149 ark:/67375/WNG-LQSQJB0R-Q Harvard University istex:371C9DED04BE60BAB212972409C8D499EBCBF104 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Review-3 content type line 23
ISSN:	0265-9247 1521-1878 1521-1878
DOI:	10.1002/bies.201500149