Uncovering the genomic signature of ancient introgression between white oak lineages (Quercus)

© 2019 The Authors. New Phytologist © 2019 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 226(2020), 4 vom: 01. Mai, Seite 1158-1170
1. Verfasser: Crowl, Andrew A (VerfasserIn)
Weitere Verfasser: Manos, Paul S, McVay, John D, Lemmon, Alan R, Lemmon, Emily Moriarty, Hipp, Andrew L
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Quercus anchored hybrid enrichment ancient introgression gene flow hybridisation phylogenetic network phylogenomics white oaks
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520 |a Botanists have long recognised interspecific gene flow as a common occurrence within white oaks (Quercus section Quercus). Historical allele exchange, however, has not been fully characterised and the complex genomic signals resulting from the combination of vertical and horizontal gene transmission may confound phylogenetic inference and obscure our ability to accurately infer the deep evolutionary history of oaks. Using anchored enrichment, we obtained a phylogenomic dataset consisting of hundreds of single-copy nuclear loci. Concatenation, species-tree and network analyses were carried out in an attempt to uncover the genomic signal of ancient introgression and infer the divergent phylogenetic topology for the white oak clade. Locus and site-level likelihood comparisons were then conducted to further explore the introgressed signal within our dataset. Historical, intersectional gene flow is suggested to have occurred between an ancestor of the Eurasian Roburoid lineage and Quercus pontica and North American Dumosae and Prinoideae lineages. Despite extensive time past, our approach proved successful in detecting the genomic signature of ancient introgression. Our results, however, highlight the importance of sampling and the use of a plurality of analytical tools and methods to sufficiently explore genomic datasets, uncover this signal, and accurately infer evolutionary history 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Quercus 
650 4 |a anchored hybrid enrichment 
650 4 |a ancient introgression 
650 4 |a gene flow 
650 4 |a hybridisation 
650 4 |a phylogenetic network 
650 4 |a phylogenomics 
650 4 |a white oaks 
700 1 |a Manos, Paul S  |e verfasserin  |4 aut 
700 1 |a McVay, John D  |e verfasserin  |4 aut 
700 1 |a Lemmon, Alan R  |e verfasserin  |4 aut 
700 1 |a Lemmon, Emily Moriarty  |e verfasserin  |4 aut 
700 1 |a Hipp, Andrew L  |e verfasserin  |4 aut 
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773 1 8 |g volume:226  |g year:2020  |g number:4  |g day:01  |g month:05  |g pages:1158-1170 
856 4 0 |u http://dx.doi.org/10.1111/nph.15842  |3 Volltext 
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