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A total evidence phylogeny sheds light on a new Vriesea (Tillandsioideae, Bromeliaceae) species from the Brazilian Atlantic Forest

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Abstract

Vriesea is one of the most diverse genera in the Brazilian Atlantic Forest, comprising approximately 170 species in this domain. Included in this genus, the V. ensiformis group encompasses ten species that are distributed from northeastern to southern Brazil. During field expeditions in Parque Nacional da Serra dos Órgãos, Rio de Janeiro, Brazil, we found a new species which was previously long recognized as Vriesea aff. gradata in herbaria. Thus, here we aim to describe V. organensis and investigate its phylogenetic relationship to other species in the V. ensiformis group through a total evidence approach. We conducted an extensive literature review, herbarium consulting and field trips to gather data for describing the new species. Additionally, we constructed a concatenated matrix of molecular and morphological data to generate a phylogenetic hypothesis for the V. ensiformis group. Vriesea organensis is morphologically related to V. psittacina, V. gradata and V. fluviatilis and is described as possibly critically endangered. Our phylogenetic tree revealed that V. organensis is closely related to V. fluviatilis, in contrast to the herbarium hypothesis of similarity with V. gradata. The new species is characterized by the floral bracts incurvate and strongly carinate at the apex, rachis exposed when flowering, petal yellow with green apex and stigma exceeding the anthers. Furthermore, our findings indicate that the V. ensiformis group is not monophyletic based on our dataset.

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Acknowledgements

We thank Museu Nacional/Universidade Federal do Rio de Janeiro-UFRJ e a Universidade Federal do Estado do Rio de Janeiro (UNIRIO) for the research support in laboratories and field trips; the curators of the visited herbaria: the team of the Laboratório de Sistemática de Bromeliaceae – Museu Nacional, for the valuable discussions and field support; the Helge Ax:son Johnsons stiftelse (F21-0212/2021), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES, Project CAPES-STINT 88887.304775/2018-00), FAPERJ (E-26/200.073/2019) and CNPq (478345/2013-5 and 313.333/2021-1) for funding this work.

Funding

This research was funded by Helge Ax:son Johnsons stiftelse (F21-0212/ 2021) grant scholarship to IMK; CAPES (CAPES, Project CAPES-STINT 88887.304775/2018-00) to IMK, AFC and FS; FAPERJ (E-26/200.073/2019) to AFC; and CNPq (478345/2013-5 and 313.333/2021-1) to AFC. This research has no conflicts of interest or proprietary interests (financial or non-financial).

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All authors designed the study. IMK and AFC collected the specimens. IMK and FS generated the sequences and analyzed the data. IMK wrote the paper with comments of all authors.

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Correspondence to Igor Musauer Kessous.

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The authors declare no competing interests.

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Handling Editor: Mauricio Bonifacino.

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Supplementary Information

Below is the link to the electronic supplementary material.

Information on electronic supplementary material Online Resource 1.

Taxa, locality, GenBank accession numbers and specimen vouchers. (pdf 12 kb)

Information on electronic supplementary material Online Resource 2.

Primers used for the amplification of the PHYC, matK and rps16-trnK. (pdf 6 kb)

Information on electronic supplementary material Online Resource 3.

Maximum Clade Credibility (MCC) tree resulted from BEAST 2 analysis, based exclusively in DNA data (PHYC, matK and rps16-trnK). (pdf 46 kb)

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Kessous, I.M., Salgueiro, F. & da Costa, A.F. A total evidence phylogeny sheds light on a new Vriesea (Tillandsioideae, Bromeliaceae) species from the Brazilian Atlantic Forest. Plant Syst Evol 310, 6 (2024). https://doi.org/10.1007/s00606-023-01885-9

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