Ecological speciation in sympatric palms: 4. Demographic analyses support speciation of Howea in the face of high gene flow
Resource type
Journal article
Date published
August 9, 2019
Abstract
The idea that populations must be geographically isolated (allopatric) to evolve into separate species has persisted for a long time. It is now clear that new species can also diverge despite ongoing genetic exchange, but few accepted cases of speciation in sympatry have held up when scrutinized using modern approaches. Here, we examined evidence for speciation of the Howea palms of Lord Howe Island, Australia, in light of new genomic data. We used coalescence‐based demographic models combined with double digest restriction site associated DNA sequencing of multiple individuals and provide support for previous claims by Savolainen et al. that speciation in Howea did occur in the face of gene flow.
Journal title
Evolution
Publisher
Wiley
ISSN
0014-3820
eISSN
1558-5646
Official URL