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Article: Accelerated diversification correlated with functional traits shapes extant diversity of the early divergent angiosperm family Annonaceae

TitleAccelerated diversification correlated with functional traits shapes extant diversity of the early divergent angiosperm family Annonaceae
Authors
KeywordsAnnonaceae
Diversification rates
Liana
Pollination trap
Seed dispersal
Issue Date2020
PublisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/ympev
Citation
Molecular Phylogenetics and Evolution, 2020, v. 142, article no. 106659 How to Cite?
AbstractA major goal of phylogenetic systematics is to understand both the patterns of diversification and the processes by which these patterns are formed. Few studies have focused on the ancient, species-rich Magnoliales clade and its diversification pattern. Within Magnoliales, the pantropically distributed Annonaceae are by far the most genus-rich and species-rich family-level clade, with c. 110 genera and c. 2,400 species. We investigated the diversification patterns across Annonaceae and identified traits that show varied associations with diversification rates using a time-calibrated phylogeny of 835 species (34.6% sampling) and 11,211 aligned bases from eight regions of the plastid genome (rbcL, matK, ndhF, psbA-trnH, trnL-F, atpB-rbcL, trnS-G, and ycf1). Twelve rate shifts were identified using BAMM: in Annona, Artabotrys, Asimina, Drepananthus, Duguetia, Goniothalamus, Guatteria, Uvaria, Xylopia, the tribes Miliuseae and Malmeeae, and the Desmos-Dasymaschalon-Friesodielsia-Monanthotaxis clade. TurboMEDUSA and method-of-moments estimator analyses showed largely congruent results. A positive relationship between species richness and diversification rate is revealed using PGLS. Our results show that the high species richness in Annonaceae is likely the result of recent increased diversification rather than the steady accumulation of species via the ‘museum model’. We further explore the possible role of selected traits (habit, pollinator trapping, floral sex expression, pollen dispersal unit, anther septation, and seed dispersal unit) in shaping diversification patterns, based on inferences of BiSSE, MuSSE, HiSSE, and FiSSE analyses. Our results suggest that the liana habit, the presence of circadian pollinator trapping, androdioecy, and the dispersal of seeds as single-seeded monocarp fragments are closely correlated with higher diversification rates; pollen aggregation and anther septation, in contrast, are associated with lower diversification rates. © 2019 The Authors
Persistent Identifierhttp://hdl.handle.net/10722/280132
ISSN
2017 Impact Factor: 4.412
2015 SCImago Journal Rankings: 2.287

 

DC FieldValueLanguage
dc.contributor.authorXue, B-
dc.contributor.authorGuo, X-
dc.contributor.authorLandis, JB-
dc.contributor.authorSun, M-
dc.contributor.authorTang, CC-
dc.contributor.authorSoltis, PS-
dc.contributor.authorSoltis, DE-
dc.contributor.authorSaunders, RMK-
dc.date.accessioned2020-01-06T02:01:29Z-
dc.date.available2020-01-06T02:01:29Z-
dc.date.issued2020-
dc.identifier.citationMolecular Phylogenetics and Evolution, 2020, v. 142, article no. 106659-
dc.identifier.issn1055-7903-
dc.identifier.urihttp://hdl.handle.net/10722/280132-
dc.description.abstractA major goal of phylogenetic systematics is to understand both the patterns of diversification and the processes by which these patterns are formed. Few studies have focused on the ancient, species-rich Magnoliales clade and its diversification pattern. Within Magnoliales, the pantropically distributed Annonaceae are by far the most genus-rich and species-rich family-level clade, with c. 110 genera and c. 2,400 species. We investigated the diversification patterns across Annonaceae and identified traits that show varied associations with diversification rates using a time-calibrated phylogeny of 835 species (34.6% sampling) and 11,211 aligned bases from eight regions of the plastid genome (rbcL, matK, ndhF, psbA-trnH, trnL-F, atpB-rbcL, trnS-G, and ycf1). Twelve rate shifts were identified using BAMM: in Annona, Artabotrys, Asimina, Drepananthus, Duguetia, Goniothalamus, Guatteria, Uvaria, Xylopia, the tribes Miliuseae and Malmeeae, and the Desmos-Dasymaschalon-Friesodielsia-Monanthotaxis clade. TurboMEDUSA and method-of-moments estimator analyses showed largely congruent results. A positive relationship between species richness and diversification rate is revealed using PGLS. Our results show that the high species richness in Annonaceae is likely the result of recent increased diversification rather than the steady accumulation of species via the ‘museum model’. We further explore the possible role of selected traits (habit, pollinator trapping, floral sex expression, pollen dispersal unit, anther septation, and seed dispersal unit) in shaping diversification patterns, based on inferences of BiSSE, MuSSE, HiSSE, and FiSSE analyses. Our results suggest that the liana habit, the presence of circadian pollinator trapping, androdioecy, and the dispersal of seeds as single-seeded monocarp fragments are closely correlated with higher diversification rates; pollen aggregation and anther septation, in contrast, are associated with lower diversification rates. © 2019 The Authors-
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.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectAnnonaceae-
dc.subjectDiversification rates-
dc.subjectLiana-
dc.subjectPollination trap-
dc.subjectSeed dispersal-
dc.titleAccelerated diversification correlated with functional traits shapes extant diversity of the early divergent angiosperm family Annonaceae-
dc.typeArticle-
dc.identifier.emailSaunders, RMK: saunders@hku.hk-
dc.identifier.authoritySaunders, RMK=rp00774-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1016/j.ympev.2019.106659-
dc.identifier.pmid31639525-
dc.identifier.scopuseid_2-s2.0-85073816180-
dc.identifier.hkuros308906-
dc.identifier.volume142-
dc.identifier.spagearticle no. 106659-
dc.identifier.epagearticle no. 106659-
dc.publisher.placeUnited States-

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