Apocynaceae phylogenomics in Neotropical Orthosiinae I: the Scyphostelma harlingii clade

The Andean-centred Orthosiinae in the Neotropical Apocynaceae harbours a tremendous, still understudied diversity o f plañís with small but intricate flowers that are currently classified in four genera: Jobinia (25 spp.), Monsanima (2 spp.), Orthosia (55 spp.), and Scyphostelma (>50 spp ). T...

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Autores principales:	Pineda, Y. M., Keller, K. A., Balderrama-Torrico, J. A., Meve, U., Nürk, M. N., Liede-Schumann, S.
Formato:	Artículo revista
Publicado:	Instituto de Botánica del Nordeste 2023
Acceso en línea:	https://revistas.unne.edu.ar/index.php/bon/article/view/7290
Aporte de:	Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste

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record_format	ojs
spelling	I48-R154-article-72902023-12-27T22:56:27Z Apocynaceae phylogenomics in Neotropical Orthosiinae I: the Scyphostelma harlingii clade Pineda, Y. M. Keller, K. A. Balderrama-Torrico, J. A. Meve, U. Nürk, M. N. Liede-Schumann, S. The Andean-centred Orthosiinae in the Neotropical Apocynaceae harbours a tremendous, still understudied diversity o f plañís with small but intricate flowers that are currently classified in four genera: Jobinia (25 spp.), Monsanima (2 spp.), Orthosia (55 spp.), and Scyphostelma (>50 spp ). To investígate the evolutionary relationships within Orthosiinae and to reconstruct a comprehensive species phylogeny, we conducted taiget capture sequencing experiments (HybSeq) using Apocynaceae-specific probe sets. Exclusively using herbarium specimens, some of which are over a century oíd, and rigorous data processing, awell-supported phylogeny comprising approximately 78% of the known species is presented. Phylogenetic results confirm the generic relationships and the common origin of the species in Orthosiinae. Here, we particularly focus on the relationships of the recently described Scyphostelma harlingii group, whose species are placed in our phylogeny in a clade sister to the remaining Scyphostelma species. We measured 38 morphological traits to test for significant diíferences, mainly in floral characteristics between the species in the S. harlingii group and the remaining Scyphostelma species. We inferred that peduncles pedicels and corolla lobes in the group to be significantly larger than those in the rest of the genus. Overall, the S. harlingii group is characterised by distinctive laiger flowers, and larger inflorescences with long-filiform peduncles and pedicels that also occur on short and long shoots (whereas inflorescences occur only on short shoots in remaining Scyphostelma). Furthermore, we confirm the position of the recently described S. rotorum and S. solomonii, originally being suggested for morphological reasons to belong to the S. harlingii group. Our study provides further evidence on the evolutionary relationships o f Orthosiinae species and sheds light on their classification, particularly highlighting the S. harlingii clade. Instituto de Botánica del Nordeste 2023-12-27 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://revistas.unne.edu.ar/index.php/bon/article/view/7290 Bonplandia; Vol. 32 (2023): Suplemento Bonplandia; Vol. 32 (2023): Suplemento 1853-8460 0524-0476 Derechos de autor 2023 Bonplandia http://creativecommons.org/licenses/by/4.0
institution	Universidad Nacional del Nordeste
institution_str	I-48
repository_str	R-154
container_title_str	Revistas UNNE - Universidad Nacional del Noroeste (UNNE)
format	Artículo revista
author	Pineda, Y. M. Keller, K. A. Balderrama-Torrico, J. A. Meve, U. Nürk, M. N. Liede-Schumann, S.
spellingShingle	Pineda, Y. M. Keller, K. A. Balderrama-Torrico, J. A. Meve, U. Nürk, M. N. Liede-Schumann, S. Apocynaceae phylogenomics in Neotropical Orthosiinae I: the Scyphostelma harlingii clade
author_facet	Pineda, Y. M. Keller, K. A. Balderrama-Torrico, J. A. Meve, U. Nürk, M. N. Liede-Schumann, S.
author_sort	Pineda, Y. M.
title	Apocynaceae phylogenomics in Neotropical Orthosiinae I: the Scyphostelma harlingii clade
title_short	Apocynaceae phylogenomics in Neotropical Orthosiinae I: the Scyphostelma harlingii clade
title_full	Apocynaceae phylogenomics in Neotropical Orthosiinae I: the Scyphostelma harlingii clade
title_fullStr	Apocynaceae phylogenomics in Neotropical Orthosiinae I: the Scyphostelma harlingii clade
title_full_unstemmed	Apocynaceae phylogenomics in Neotropical Orthosiinae I: the Scyphostelma harlingii clade
title_sort	apocynaceae phylogenomics in neotropical orthosiinae i: the scyphostelma harlingii clade
description	The Andean-centred Orthosiinae in the Neotropical Apocynaceae harbours a tremendous, still understudied diversity o f plañís with small but intricate flowers that are currently classified in four genera: Jobinia (25 spp.), Monsanima (2 spp.), Orthosia (55 spp.), and Scyphostelma (>50 spp ). To investígate the evolutionary relationships within Orthosiinae and to reconstruct a comprehensive species phylogeny, we conducted taiget capture sequencing experiments (HybSeq) using Apocynaceae-specific probe sets. Exclusively using herbarium specimens, some of which are over a century oíd, and rigorous data processing, awell-supported phylogeny comprising approximately 78% of the known species is presented. Phylogenetic results confirm the generic relationships and the common origin of the species in Orthosiinae. Here, we particularly focus on the relationships of the recently described Scyphostelma harlingii group, whose species are placed in our phylogeny in a clade sister to the remaining Scyphostelma species. We measured 38 morphological traits to test for significant diíferences, mainly in floral characteristics between the species in the S. harlingii group and the remaining Scyphostelma species. We inferred that peduncles pedicels and corolla lobes in the group to be significantly larger than those in the rest of the genus. Overall, the S. harlingii group is characterised by distinctive laiger flowers, and larger inflorescences with long-filiform peduncles and pedicels that also occur on short and long shoots (whereas inflorescences occur only on short shoots in remaining Scyphostelma). Furthermore, we confirm the position of the recently described S. rotorum and S. solomonii, originally being suggested for morphological reasons to belong to the S. harlingii group. Our study provides further evidence on the evolutionary relationships o f Orthosiinae species and sheds light on their classification, particularly highlighting the S. harlingii clade.
publisher	Instituto de Botánica del Nordeste
publishDate	2023
url	https://revistas.unne.edu.ar/index.php/bon/article/view/7290
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first_indexed	2024-08-21T22:37:02Z
last_indexed	2024-08-21T22:37:02Z
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Apocynaceae phylogenomics in Neotropical Orthosiinae I: the Scyphostelma harlingii clade

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