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Article: Gene tree discordance and coalescent methods support ancient intergeneric hybridisation between Dasymaschalon and Friesodielsia (Annonaceae)

TitleGene tree discordance and coalescent methods support ancient intergeneric hybridisation between Dasymaschalon and Friesodielsia (Annonaceae)
Authors
KeywordsAncient hybridisation
Annonaceae
Dasymaschalon
Friesodielsia
Gene tree incongruence
Issue Date2018
PublisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/ympev
Citation
Molecular Phylogenetics and Evolution, 2018, v. 127, p. 14-29 How to Cite?
AbstractAlthough hybridisation between closely related species is common and known to be important in plant evolution, hybridisation at the generic level or above is comparatively rare. We address ancient intergeneric hybridisation in the early-divergent angiosperm family Annonaceae by phylogenetic reconstruction, divergence time estimation and coalescent simulation of the genus Dasymaschalon using a multi-locus approach based on molecular data from five chloroplast (matK, psbA-trnH, ndhF, rbcL, and trnL-F) and five nuclear (ITS, ETS, AP3, PhyA, and PhyC) DNA markers. We demonstrate incongruence among different gene trees: Dasymaschalon is retrieved as monophyletic in the nuclear ribosomal tree (based on ITS and ETS), but is non-monophyletic in the chloroplast and Phy-gene trees (with poor resolution in the AP3 tree), with the majority of species assigned to a strongly supported clade but three species (D. filipes, D. longiflorum and D. tibetense) more closely related to the sister genus Friesodielsia. Three contrasting approaches—a coalescent method based on molecular dating, incongruence pattern comparison, and a multi-accession phylogenetic reconstruction—are used to assess the patterns of this gene tree incongruence and test hypotheses of ancient hybridisation and incomplete lineage sorting. Our results support a late Miocene intergeneric hybridisation between members of the Dasymaschalon and Friesodielsia lineages in continental Asia-west Malesia.
Persistent Identifierhttp://hdl.handle.net/10722/254900
ISSN
2023 Impact Factor: 3.6
2023 SCImago Journal Rankings: 1.206
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorGuo, X-
dc.contributor.authorThomas, DC-
dc.contributor.authorSaunders, RMK-
dc.date.accessioned2018-06-21T01:08:21Z-
dc.date.available2018-06-21T01:08:21Z-
dc.date.issued2018-
dc.identifier.citationMolecular Phylogenetics and Evolution, 2018, v. 127, p. 14-29-
dc.identifier.issn1055-7903-
dc.identifier.urihttp://hdl.handle.net/10722/254900-
dc.description.abstractAlthough hybridisation between closely related species is common and known to be important in plant evolution, hybridisation at the generic level or above is comparatively rare. We address ancient intergeneric hybridisation in the early-divergent angiosperm family Annonaceae by phylogenetic reconstruction, divergence time estimation and coalescent simulation of the genus Dasymaschalon using a multi-locus approach based on molecular data from five chloroplast (matK, psbA-trnH, ndhF, rbcL, and trnL-F) and five nuclear (ITS, ETS, AP3, PhyA, and PhyC) DNA markers. We demonstrate incongruence among different gene trees: Dasymaschalon is retrieved as monophyletic in the nuclear ribosomal tree (based on ITS and ETS), but is non-monophyletic in the chloroplast and Phy-gene trees (with poor resolution in the AP3 tree), with the majority of species assigned to a strongly supported clade but three species (D. filipes, D. longiflorum and D. tibetense) more closely related to the sister genus Friesodielsia. Three contrasting approaches—a coalescent method based on molecular dating, incongruence pattern comparison, and a multi-accession phylogenetic reconstruction—are used to assess the patterns of this gene tree incongruence and test hypotheses of ancient hybridisation and incomplete lineage sorting. Our results support a late Miocene intergeneric hybridisation between members of the Dasymaschalon and Friesodielsia lineages in continental Asia-west Malesia.-
dc.languageeng-
dc.publisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/ympev-
dc.relation.ispartofMolecular Phylogenetics and Evolution-
dc.subjectAncient hybridisation-
dc.subjectAnnonaceae-
dc.subjectDasymaschalon-
dc.subjectFriesodielsia-
dc.subjectGene tree incongruence-
dc.titleGene tree discordance and coalescent methods support ancient intergeneric hybridisation between Dasymaschalon and Friesodielsia (Annonaceae)-
dc.typeArticle-
dc.identifier.emailSaunders, RMK: saunders@hku.hk-
dc.identifier.authoritySaunders, RMK=rp00774-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.ympev.2018.04.009-
dc.identifier.scopuseid_2-s2.0-85048811689-
dc.identifier.hkuros285300-
dc.identifier.hkuros294047-
dc.identifier.volume127-
dc.identifier.spage14-
dc.identifier.epage29-
dc.identifier.isiWOS:000446021300002-
dc.publisher.placeUnited States-
dc.identifier.issnl1055-7903-

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