[262] - Phylogenetic relationships and generic reassessment of Proustia and allies (Compositae: Nassauvieae)

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Citation
Sancho, G., Katinas, L., Viera Barreto, J., Moreira-Muñoz, A., Luebert, F., 2018. Phylogenetic relationships and generic reassessment of Proustia and allies (Compositae: Nassauvieae). Taxon, 67 (1), 113 - 129.
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Identification
Title(s):Main Title: Phylogenetic relationships and generic reassessment of Proustia and allies (Compositae: Nassauvieae)
Description(s):Abstract: Proustia is a small southern Andean genus of shrubs, vines and small trees, which are characteristic elements of Chilean and Argentine Andean forests, thickets and desert scrubs. Since Proustia possesses an unusual and characteristic morphology within the Nassauvieae, its circumscription as well as its phylogenetic placement is decisive in understanding the evolution of the tribe. Berylsimpsonia, from the Caribbean, was segregated from Proustia, which currently only includes three species. Lophopappus, another Andean genus, has been closely related to Proustia in sharing style and corolla features that are unusual in the Nassauvieae. The purpose of this work is to evaluate the placement of Proustia within the Nassauvieae, its relationships with Berylsimpsonia and Lophopappus, and the relationships of its species using molecular data and phylogenetic methods. This is the first comprehensive analysis of Proustia. We have included in our study the three currently accepted species of Proustia and seven of its ten infraspecific taxa. For each taxon of Proustia, one to seven accessions were analyzed. Species of Lophopappus and Berylsimpsonia, as well as 16 species belonging to 13 genera of Nassauvieae were also analyzed. We sequenced the nuclear ribosomal ITS and ETS, and the plastid regions ndhF, 5′ trnK-matK, trnL-trnF, and trnL(UAG)-rpl32. Unlike other previous studies, Proustia is not sister to the rest but nested in the tribe in our analyses. Berylsimpsonia vanillosma and P. ilicifolia are distantly related to P. pyrifolia, the type of the genus. According to nuclear DNA data, the infraspecific taxa of P. cuneifolia were recovered all in a well-supported clade, although based on the plastid data P. pyrifolia does not form a lineage separate from P. cuneifolia. Lophopappus is the genus most closely related to Proustia. Regarding the evolution of styles, our results suggest multiple origins of atypical stylar features in the Nassauvieae. As a result of our analyses we propose the segregation of Proustia ilicifolia into the new genus Spinoliva. Morphological data are consistent with the segregation of Proustia and Lophopappus as separate genera. Two species of Proustia, P. cuneifolia and P. pyrifolia are recognized. Three lectotypifications, one neotypification, two new combinations and five rank changes are proposed.
Responsible Party
Creator(s):Author: Gisela Sancho
Author: Liliana Katinas
Author: Jessica Viera Barreto
Author: Andrés Moreira-Muñoz
Author: Federico Luebert
Publisher:IAPT
Topic
CRC1211 Topic:Biology
Related Sub-project(s):B1
Subject(s):CRC1211 Keywords: Evolution, Phylogeny
File Details
File Name:Sancho_etal_2018_Phylogenetic_relationships_of_Proustia_Taxon.pdf
Data Type:Text
File Size:4857 kB (4.743 MB)
Date(s):Date Accepted: 2017-12-06
Mime Type:application/pdf
Language:English
Status:Completed
Constraints
Download Permission:OnlyCRC1211
General Access and Use Conditions:According to the CRC1211DB data policy agreement.
Access Limitations:According to the CRC1211DB data policy agreement.
Geographic
North:-no map data
East:-
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West:-
Measurement Region:Chile
Measurement Location:--Chile--
Specific Informations - Publication
Status:Published
Review:PeerReview
Year:2018
Type:Article
Article Type:Journal
Source:Taxon
Issue:1
Volume:67
Number Of Pages:17
Page Range:113 - 129
Metadata Details
Metadata Creator:Tim Böhnert
Metadata Created:2019-11-15
Metadata Last Updated:2019-11-15
Subproject:B1
Funding Phase:1
Metadata Language:English
Metadata Version:V42
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