Phylogenetic reconstruction of the South American genus Leucheria Lag. (Asteraceae, Nassauvieae) based on nuclear and chloroplast DNA sequences

Jara‐Arancio, Paola; Vidal, Paula; Panero, José Luis Calleja; Marticorena, Alicia; Arancio, Gina; Arroyo, Mary T. K.

doi:10.1007/s00606-016-1366-7

Cited by 14 publications

(26 citation statements)

References 34 publications

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“…We found a strong coincidence between our results and the molecular phylogeny of Leucheria established by Jara-Arancio & al. (2017).…”

Section: ■ Discussionsupporting

confidence: 91%

“…. Phylogenetic tree of Leucheria (modified from Jara- Arancio & al., 2017) showing the concentration of species with regular capitula in clade A, and the species with paleaceous phyllaries in clade B. Green, species with regular capitula; red, species with paleaceous phyllaries; light green, species with a partial bending of the phyllaries; orange, species with maximum compartmentalization.…”

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confidence: 99%

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Capitulum compartmentalization in Leucheria (Nassauvieae): Insights into the evolution of Asteraceae inflorescence

Katinas

Forte

2020

TAXON

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An unusual feature occurs in the capitula of Leucheria (Nassauvieae, Asteraceae), some phyllaries of the involucre are twisted and/or rotated. The different spatial orientations of these phyllaries, called here paleaceous phyllaries, divide the capitulum into compartments enclosing florets and fruits. Because the internal morphology of the phyllaries could play a role in the compartmentalization, the anatomy of the phyllaries together with their different spatial arrangements was analyzed in the 49 species of Leucheria. We found differences between the abaxial and adaxial epidermis, bulliform-like cells in the epidermis, and a callus at the base of the phyllaries. Cohesion, swelling, and turgor mechanisms in tissues are proposed to play a role in the positional changes of the phyllaries. The phyllaries bend, twist, rotate, and spread down and, excepting the latter, all are involved in capitula compartmentalization. The paleaceous phyllaries are already present in buds and continue during the whole plant life. Our results support previous phylogenetic hypotheses that suggest that Leucheria achieved a regular capitulum but maintained the remnants of an ancestor's pseudocephalium.

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“…We found a strong coincidence between our results and the molecular phylogeny of Leucheria established by Jara-Arancio & al. (2017).…”

Section: ■ Discussionsupporting

confidence: 91%

mentioning

confidence: 99%

Capitulum compartmentalization in Leucheria (Nassauvieae): Insights into the evolution of Asteraceae inflorescence

Katinas

Forte

2020

TAXON

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“…This pattern has been observed in other taxa such as Chaetanthera (Hershkovitz et al, 2006), Leucocoryne (Jara-Arancio et al, 2014) and the Malesherbiaceae (Gengler-Nowak, 2002). This same perennial to annual polarity has been found in studies with nuclear genes in Scorzoneroides -Asteraceae (Cruz-Mazo et al, 2009), Nemesia -Scrophulariaceae (Datson et al, 2008) and Leucheria (Jara-Arancio et al, 2017).…”

Section: Discussionsupporting

confidence: 78%

Phylogenetic reconstruction of the genus Triptilion (Asteraceae, Nassauvieae) based on nuclear and chloroplast DNA sequences

Jara‐Arancio

Vidal

Arroyo

2017

J of Sytematics Evolution

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The genus Triptilion is endemic to central Chile, the Mendoza Province and western Patagonia in Argentina. It is currently composed of seven species: T. achilleae, T. benaventii, T. berteroi, T. capillatum, T. cordifolium, T. gibbosum, and T. spinosum. The main objectives of this paper were to determine the phylogenetic relationships of species of Triptilion. We also traced the evolution of annual and perennial life‐forms. Historically a close relationship has been described between genera Triptilion and Nassauvia. Phylogenetic analysis of the genus Triptilion and more closely related genera was undertaken using two nuclear (ITS, ETS) and two chloroplast (trnL‐F, rpl32‐trnL) markers. The topology of the Bayesian inference tree shows that the genus Triptilion is paraphyletic, because Nassauvia lagascae, the only representative of Nassauvia section Caloptilium grouped with T. achilleae, Clade I. The other species of Triptilion form two clades: Clade II composed of T. cordifolium and T. gibbosum and Clade III that includes T. benaventii, T. berteroi, T. capillatum, and T. spinosum. The genus Triptilion originated and diverged during the Miocene. The results of the life history reconstructions indicate that the common ancestor of Triptilion and Nassauvia was perennial. The annual habit appears to be derived in Triptilion. The life‐form of the common ancestor of Triptilion was ambiguous; it may have been annual or perennial.

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“…However, the placement of P. ilicifolia was uncertain in our phylogenetic trees and varied depending on whether plastid or nuclear data were taken into account. Only one previous phylogenetic study had included P. ilicifolia (Jara-Arancio & al., 2017), retrieving it as sister to Macrachaenium Hook.f. We were not able to include Macrachaenium in our analysis.…”

Section: Discussionmentioning

confidence: 99%

“…While Proustia has long been placed in Nassauvieae based on its predominantly bilabiate corollas, tailed anthers and pollen exine stratification (e.g., Crisci, 1974;Cabrera, 1977;Tellería & al., 2003;Katinas & al., 2008a, b), its placement within this tribe is not yet clear. In previous phylogenetic analyses, Proustia was recovered as sister to the rest of Nassauvieae , whereas in other studies its placement was variable and even dependent on which molecular markers were employed (Katinas & al., 2008b;Luebert & al., 2009;Jara-Arancio & al., 2017). However, these studies did not focus on Proustia and each of them included only one of its three species.…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic relationships and generic reassessment of Proustia and allies (Compositae: Nassauvieae)

Sancho

Katinas

Barreto

et al. 2018

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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.

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Phylogenetic reconstruction of the South American genus Leucheria Lag. (Asteraceae, Nassauvieae) based on nuclear and chloroplast DNA sequences

Cited by 14 publications

References 34 publications

Capitulum compartmentalization in Leucheria (Nassauvieae): Insights into the evolution of Asteraceae inflorescence

Capitulum compartmentalization in Leucheria (Nassauvieae): Insights into the evolution of Asteraceae inflorescence

Phylogenetic reconstruction of the genus Triptilion (Asteraceae, Nassauvieae) based on nuclear and chloroplast DNA sequences

Phylogenetic relationships and generic reassessment of Proustia and allies (Compositae: Nassauvieae)

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