Phylogeny of the Athroismeae (Asteraceae), with a new circumscription of the tribe

Bengtson, Annika; Englund, Markus; Pruski, John F.; Anderberg, Arne A.

doi:10.12705/662.8

Cited by 9 publications

(42 citation statements)

References 28 publications

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“…Anisopappus junodii and A. smutsii were placed together in Eldenäs & Anderberg's (1996) morphological study, with A. corymbosus as sister. Anisopappus brandbergensis and A. schinzii were until recently placed in the genus Philyrophyllum of the tribe Gnaphalieae, but were revealed to belong within Anisopappus by recent molecular phylogenetic studies (Bentley & al., 2015;Bengtson & al., 2017). They are here placed together with Anisopappus corymbosus, which they much resemble in habit, foliage and capitula.…”

Section: ■ Discussionmentioning

confidence: 99%

“…-Herbarium material from BM, BR, BRLU, COI, K, M, P, S, and UPS was studied. A total of 97 specimens of Anisopappus were included in the molecular analyses, selected to represent a wide coverage of the genus sensu Bengtson & al. (2017).…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

“…and C. thespioides F.Muell. were selected as outgroup, based on the results of Bengtson & al. (2017).…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

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Phylogeny of Anisopappus with species circumscriptions revisited (Asteraceae: Athroismeae)

Bengtson

Osborne

Anderberg

2021

TAXON

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Anisopappus (Asteraceae: Athroismeae) is a genus with its main distribution in Africa (one species also in Asia), currently considered to include around 21 species. A molecular phylogenetic study of Anisopappus is presented for the first time, based on plastid (ndhF, trnL-trnF, trnQ-rps16) and nuclear (ETS, ITS) data. Anisopappus is confirmed to be monophyletic, and species interrelationships are resolved. The results differ from earlier treatments based on morphology, and the phylogenetic analyses reveal a need for changes in species circumscriptions as compared to those of the most recent treatment. Consequently, many taxa currently treated as synonyms are here shown to represent separate species indicating that the genus includes well over 40 species. Distribution patterns now emerge where several clades are found to consist of species restricted to a particular geographical region. The Anisopappus of Madagascar, many of which were earlier placed in synonymy with species found on the African continent, are here shown to be endemic, and the results reveal a need for further studies of that group.

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Section: ■ Discussionmentioning

confidence: 99%

Section: ■ Materials and Methodsmentioning

confidence: 99%

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Phylogeny of Anisopappus with species circumscriptions revisited (Asteraceae: Athroismeae)

Bengtson

Osborne

Anderberg

2021

TAXON

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“…Anisochaeta DC., Artemisiopsis S.Moore and Philyrophyllum O.Hoffm. can now be referred to Athroismeae Panero (Bengtson & al., 2017; Bentley & al., 2017). Chondropyxis D.A.Cooke can be referred to Astereae (Brouillet & al., 2009; Bayer & Cross, unpub.…”

Section: Methodsmentioning

confidence: 99%

“…), and Callilepis DC. is best excluded from Gnaphalieae, having been associated with several other tribes, although its precise relationships remain obscure (Anderberg & al., 2005; Anderberg, 2009; Pelser & Watson, 2009; Bengtson & al., 2017). We have noted those genera that have recently been synonymised, but have retained them in Table 1.…”

Section: Methodsmentioning

confidence: 99%

A revised subtribal classification of Gnaphalieae (Asteraceae)

Smissen

Bayer

Bergh

et al. 2020

TAXON

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Gnaphalieae are one of the larger tribes of the daisy family Asteraceae (Compositae) with c. 2100 species in 178 genera, occurring globally across a wide range of temperate habitats. Recent years have seen considerable advances in our understanding of their phylogenetics and evolution, but there is no widely accepted, stable subtribal classification. The present paper summarises the taxonomic history and presents the various major clades that have been named informally in phylogenetic studies. We also provide the most comprehensive phylogenetic analysis of DNA sequence data to date, including over 1000 species. Based on published studies and our new phylogenetic analyses, we suggest a subdivision of the tribe into two subtribes. These are a largely African-endemic Relhaniinae (124 species in 11 genera) and a much enlarged Gnaphaliinae, the latter accounting for more than 90% of the species diversity (c. 2000 species in 167 genera). Although a finer division of Gnaphaliinae sensu amplo may be desirable, there are at present several obstacles to such a classification, in particular contradictory or ambiguous inferences of relationships.

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Palynotaxonomy of the subtribe Anisopappinae (Athroismeae, Asteraceae) and the genus Duhaldea (Inuleae, Asteraceae) based on their exine ultrastructure

Pereira Coutinho,

Ortiz,

Cordeiro

et al. 2023

Palynology

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The exine ultrastructure of 18 species of Anisopappus (Anisopappinae, Athroismeae, Asteraceae) and three species of Duhaldea (Inuleae, Asteraceae) was studied using transmission electron microscopy (TEM). Two ultrastructural patterns were identified: senecioid and helianthoid. The senecioid pattern is characteristic of the species included in the basal clades of the phylogenetic tree of Anisopappus, as published in earlier studies. The helianthoid pattern is restricted to the taxa placed in the derived clades, including the core group of species of Anisopappus in which A. chinensis, the type species, is included. The observed ultrastructural differences seem to suggest that a future splitting of Anisopappus into several different genera should not be disregarded and that the helianthoid pattern represents, within this genus, the derived condition. The ultrastructure of the exine supports the inclusion, suggested by previous authors, of the species Duhaldea stuhlmannii, but not that of Philyrophyllum schinzii, in Anisopappus. In contrast, the three studied species of Duhaldea (D. cappa, D. nervosa, D. revoluta) present an exine with a senecioid pattern, which is characteristic of the tribe Inuleae, in which they are included. The ectoaperture, mesoaperture, and endoaperture of all studied Anisopappinae and of Duhaldea respectively intersect the tectum plus columellae, the foot layer and the outer part of the endexine, and the inner part of the endexine. This feature seems to characterize, in a consistent way, the ‘Heliantheae alliance’, and is also present in all the studied Asteroideae (except Anthemideae), Dicomoideae, and Carduoideae.

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Phylogeny of the Athroismeae (Asteraceae), with a new circumscription of the tribe

Cited by 9 publications

References 28 publications

Phylogeny of Anisopappus with species circumscriptions revisited (Asteraceae: Athroismeae)

Phylogeny of Anisopappus with species circumscriptions revisited (Asteraceae: Athroismeae)

A revised subtribal classification of Gnaphalieae (Asteraceae)

Palynotaxonomy of the subtribe Anisopappinae (Athroismeae, Asteraceae) and the genus Duhaldea (Inuleae, Asteraceae) based on their exine ultrastructure

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