J Syst Evol

• Research Article •    

A phylogenomic approach to disentangling the evolution of the large and diverse daisy tribe Anthemideae (Asteraceae)

David Criado-Ruiz1,2*, Joan Vallès3, Randall J. Bayer4, Luis Palazzesi5, Jaume Pellicer6,7, Iván Pérez Lorenzo3,6, Olivier Maurin7, Elaine Françoso7, Shyamali Roy7, Ilia J. Leitch7, Félix Forest7, William J. Baker7†, Lisa Pokorny1,7†, Oriane Hidalgo6,7†, Gonzalo Nieto Feliner1†*   

  1. 1 Real Jardín Botánico (RJB) CSIC, Madrid 28014, Spain
    2 Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid 28049, Spain
    3 Laboratori de Botànica, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Barcelona 08028, Spain
    4 Department of Biological Sciences, Center for Biodiversity, University of Memphis, Memphis, TN 38152, USA
    5 Museo Argentino de Ciencias Naturales, CONICET, División Paleobotánica, Buenos Aires, C1405DJR, Argentina
    6 Institut Botànic de Barcelona (IBB), CSIC-CMCNB, Barcelona 08038, Spain
    7 Royal Botanic Gardens, Kew, Richmond, United Kingdom
    Joint senior authors
    * Author for correspondence. David Criado-Ruiz. Email: dcriado@rjb.csic.es; Gonzalo Nieto Feliner. Email: nieto@rjb.csic.es
  • Received:2023-11-13 Accepted:2024-05-29 Online:2024-06-12

Abstract: The daisy tribe Anthemideae Cass. is one of the largest and most diverse tribes within Asteraceae. We analysed a dataset including 61 out of 111 Anthemideae genera, and all but four of the 19 currently recognized subtribes (Inulantherinae, Lapidophorinae, Lonadinae, and Vogtiinae) using a targeted high-throughput sequencing approach, the first focused on the tribe. We followed different phylogenomic approaches, using nuclear and plastid data, as well as additional analytical methods to estimate divergence times and diversification rates, to unravel the evolutionary history and classification of this tribe. Our results reinforce the phylogenetic backbone of the Anthemideae advanced in previous studies, and further reveal the possible occurrence of ancient hybridization events, plastid capture, and/or incomplete lineage sorting, suggesting that complex evolutionary processes have played an important role in the evolution of this tribe. The results also support the merging of subtribe Physmasperminae into Athanasiinae and subtribe Matricariinae into Anthemidinae, and clarify previously unresolved relationships. Furthermore, the study provides additional insights into the biogeographic patterns within the tribe by identifying three main groups: Southern African Grade, Asian Clade, and circum-Mediterranean Clade. These groups partially coincide with previously identified ones. Overall, this research provides a more detailed understanding of the Anthemideae tribe, and improves its classification. The study also emphasises the importance of phylogenomic approaches for deciphering the evolutionary dynamics of large and diverse plant lineages.

Key words: Anthemideae, Cyto-nuclear discordances, Divergence times, Hybridization, Phylogenomics