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Pokorny L, Pellicer J, Woudstra Y, Christenhusz MJM, Garnatje T, Palazzesi L, Johnson MG, Maurin O, Françoso E, Roy S, Leitch IJ, Forest F, Baker WJ, Hidalgo O. Genomic incongruence accompanies the evolution of flower symmetry in Eudicots: a case study in the poppy family (Papaveraceae, Ranunculales). FRONTIERS IN PLANT SCIENCE 2024; 15:1340056. [PMID: 38947944 PMCID: PMC11212465 DOI: 10.3389/fpls.2024.1340056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 04/18/2024] [Indexed: 07/02/2024]
Abstract
Reconstructing evolutionary trajectories and transitions that have shaped floral diversity relies heavily on the phylogenetic framework on which traits are modelled. In this study, we focus on the angiosperm order Ranunculales, sister to all other eudicots, to unravel higher-level relationships, especially those tied to evolutionary transitions in flower symmetry within the family Papaveraceae. This family presents an astonishing array of floral diversity, with actinomorphic, disymmetric (two perpendicular symmetry axes), and zygomorphic flowers. We generated nuclear and plastid datasets using the Angiosperms353 universal probe set for target capture sequencing (of 353 single-copy nuclear ortholog genes), together with publicly available transcriptome and plastome data mined from open-access online repositories. We relied on the fossil record of the order Ranunculales to date our phylogenies and to establish a timeline of events. Our phylogenomic workflow shows that nuclear-plastid incongruence accompanies topological uncertainties in Ranunculales. A cocktail of incomplete lineage sorting, post-hybridization introgression, and extinction following rapid speciation most likely explain the observed knots in the topology. These knots coincide with major floral symmetry transitions and thus obscure the order of evolutionary events.
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Affiliation(s)
- Lisa Pokorny
- Real Jardín Botánico (RJB-CSIC), Madrid, Spain
- Royal Botanic Gardens, Kew, Richmond, United Kingdom
| | - Jaume Pellicer
- Royal Botanic Gardens, Kew, Richmond, United Kingdom
- Institut Botànic de Barcelona (IBB), CSIC-CMCNB, Barcelona, Spain
| | - Yannick Woudstra
- Royal Botanic Gardens, Kew, Richmond, United Kingdom
- Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark
| | - Maarten J. M. Christenhusz
- Royal Botanic Gardens, Kew, Richmond, United Kingdom
- Department of Environment and Agriculture, Curtin University, Perth, WA, Australia
| | - Teresa Garnatje
- Institut Botànic de Barcelona (IBB), CSIC-CMCNB, Barcelona, Spain
- Jardí Botànic Marimurtra, Fundació Carl Faust, Blanes, Spain
| | - Luis Palazzesi
- División Paleobotánica, Museo Argentino de Ciencias Naturales, CONICET, Buenos Aires, Argentina
| | - Matthew G. Johnson
- Department of Biological Sciences, Texas Tech University, Lubbock, TX, United States
| | | | | | - Shyamali Roy
- Royal Botanic Gardens, Kew, Richmond, United Kingdom
| | | | - Félix Forest
- Royal Botanic Gardens, Kew, Richmond, United Kingdom
| | | | - Oriane Hidalgo
- Royal Botanic Gardens, Kew, Richmond, United Kingdom
- Institut Botànic de Barcelona (IBB), CSIC-CMCNB, Barcelona, Spain
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Liu YY, Cao JL, Kan SL, Wang PH, Wang JL, Cao YN, Wang HW, Li JM. Phylogenomic analyses sheds new light on the phylogeny and diversification of Corydalis DC. in Himalaya-Hengduan Mountains and adjacent regions. Mol Phylogenet Evol 2024; 193:108023. [PMID: 38342159 DOI: 10.1016/j.ympev.2024.108023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 01/27/2024] [Accepted: 02/01/2024] [Indexed: 02/13/2024]
Abstract
The Himalaya-Hengduan Mountains (HHM), a renowned biodiversity hotspot of the world, harbors the most extensive habitats for alpine plants with extraordinary high levels of endemism. Although the general evolution pattern has been elucidated, the underlying processes driving spectacular radiations in many species-rich groups remain elusive. Corydalis DC. is widely distributed throughout the Northern Hemisphere containing more than 500 species, with high diversity in HHM and adjacent regions. Using 95 plastid genes, 3,258,640 nuclear single nucleotide polymorphisms (SNPs) and eight single-copy nuclear genes (SCNs) generated from genome skimming data, we reconstructed a robust time-calibrated phylogeny of Corydalis comprising more than 100 species that represented all subgenera and most sections. Molecular dating indicated that all main clades of Corydalis began to diverge in the Eocene, with the majority of extant species in HHM emerged from a diversification burst after the middle Miocene. Global pattern of mean divergence times indicated that species distributed in HHM were considerably younger than those in other regions, particularly for the two most species-rich clades (V and VI) of Corydalis. The early divergence and the recent diversification of Corydalis were most likely promoted by the continuous orogenesis and climate change associated with the uplift of the Qinghai-Tibetan Plateau (QTP). Our study demonstrates the effectivity of phylogenomic analyses with genome skimming data on the phylogeny of species-rich taxa, and sheds lights on how the uplift of QTP has triggered the evolutionary radiations of large plant genera in HHM and adjacent regions.
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Affiliation(s)
- Yan-Yan Liu
- College of Plant Protection, Henan Agricultural University, Zhengzhou 450046, China.
| | - Jia-Liang Cao
- College of Plant Protection, Henan Agricultural University, Zhengzhou 450046, China
| | - Sheng-Long Kan
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China; Marine College, Shandong University, Weihai 264209, China
| | - Peng-Hang Wang
- College of Life Sciences, Henan Agricultural University, Zhengzhou 450046, China
| | - Jun-Li Wang
- College of Plant Protection, Henan Agricultural University, Zhengzhou 450046, China
| | - Ya-Nan Cao
- College of Plant Protection, Henan Agricultural University, Zhengzhou 450046, China
| | - Hong-Wei Wang
- College of Plant Protection, Henan Agricultural University, Zhengzhou 450046, China
| | - Jia-Mei Li
- College of Life Sciences, Henan Agricultural University, Zhengzhou 450046, China.
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