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Ecological speciation in sympatric palms: 4. Demographic analyses support speciation of Howea in the face of high gene flow
Author(s) -
Papadopulos Alexander S. T.,
Igea Javier,
Smith Thomas P.,
Hutton Ian,
Baker William J.,
Butlin Roger K.,
Savolainen Vincent
Publication year - 2019
Publication title -
evolution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.84
H-Index - 199
eISSN - 1558-5646
pISSN - 0014-3820
DOI - 10.1111/evo.13813
Subject(s) - sympatric speciation , biology , genetic algorithm , gene flow , ecological speciation , evolutionary biology , sympatry , ecology , palm , face (sociological concept) , gene , genetics , genetic variation , sociology , social science , physics , quantum mechanics
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.