Ecological speciation in sympatric palms: 3. Genetic map reveals genomic islands underlying species divergence in Howea

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Title: Ecological speciation in sympatric palms: 3. Genetic map reveals genomic islands underlying species divergence in Howea
Authors: Savolainen, V
Item Type: Journal Article
Abstract: Although it is now widely accepted that speciation can occur in the face of continuous gene flow, with little or no spatial separation, the mechanisms and genomic architectures that permit such divergence are still debated. Here, we examined speciation in the face of gene flow in the Howea palms of Lord Howe Island, Australia. We built a genetic map using a novel method applicable to long-lived tree species, combining it with double digest restriction-site associated DNA sequencing of multiple individuals. Based upon various metrics, we detected 46 highly differentiated regions throughout the genome, four of which contained genes with functions that are particularly relevant to the speciation scenario for Howea, specifically salt and drought tolerance.
Issue Date: 12-Jul-2019
Date of Acceptance: 24-May-2019
URI: http://hdl.handle.net/10044/1/70682
ISSN: 0014-3820
Publisher: Wiley
Journal / Book Title: Evolution
Copyright Statement: This paper is embargoed until 12 months after publication.
Sponsor/Funder: Commission of the European Communities
Natural Environment Research Council (NERC)
The Leverhulme Trust
Funder's Grant Number: 233190
NE/M015742/1
RF-2016-373/2
Keywords: Evolutionary Biology
0603 Evolutionary Biology
Publication Status: Accepted
Embargo Date: 2020-07-12
Appears in Collections:Faculty of Natural Sciences



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