Recircumscription ofOxera(Lamiaceae: Ajugoideae) to includeFaradayabased on molecular and anatomical data

Barrabé, Laure; Karnadi-Abdelkader, Giliane; Ounémoa, J.; Kok, R.P.J. de; Robert, Nadia; Gâteblé, Gildas

doi:10.1111/boj.12344

Cited by 8 publications

(18 citation statements)

References 59 publications

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“…Clade III was not a focus of this study and contains no taxa that were formerly assigned to Caryopteris. However, the clade is strongly supported (100%, 100%, 1.00), and its overall topology is similar to that found in other studies (Steane & al., 2004;Yuan & al., 2010;Barrabé & al., 2015;. Two subclades (III-i, ii in Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Two subclades (III-i, ii in Fig. 2) were recovered, and interrelationships within them have been well documented in papers focusing on this clade (Steane & al., 1997(Steane & al., , 1999(Steane & al., , 2004Yuan & al., 2010;Barrabé & al., 2015).…”

Section: Discussionmentioning

confidence: 99%

“…(2010) focused on Clerodendrum, Huang & al. (2008) on Trichostema, Barrabé & al. (2015) on Oxera, and Salmaki & al.…”

Section: Introductionmentioning

confidence: 94%

“…2010; Barrabé & al., 2015;Salmaki & al., 2016) have both segregated and merged genera, resulting in the currently accepted 23 genera: Aegiphila Jacq., Ajuga L., Amasonia L.f., Amethystea L., Caryopteris Bunge, Clerodendrum L., Discretitheca P.D.Cantino, Glossocarya Wall. ex Griff., Hosea Ridl., Kalaharia Baill., Karomia Dop, Monochilus Fisch.…”

Section: Introductionmentioning

confidence: 99%

“…Although several phylogenetic studies have focused on particular genera of Ajugoideae (Steane & al., 1997(Steane & al., , 1999(Steane & al., , 2004Huang & al., 2008;Yuan & al., 2010;Barrabé & al., 2015;Salmaki & al., 2016), no study has combined intensive sampling of the Caryopteris complex with broad sampling of Ajugoideae as a whole. Steane & al.…”

Section: Introductionmentioning

confidence: 99%

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Molecular systematics of Caryopteris (Lamiaceae) and its allies with reference to the molecular phylogeny of subfamily Ajugoideae

Xiang

Zhao

Drew

et al. 2018

TAXON

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Ajugoideae, the third–largest subfamily of Lamiaceae with 23 genera and about 760 species, is distributed worldwide, but is primarily found in tropical regions. During the past two decades, substantial progress has been made towards discerning phylogenetic relationships and generic boundaries in Ajugoideae, but major questions still remain. This phylogenetic study was conducted using 422 DNA sequences from seven DNA regions (nrITS, ETS, and matK, rbcL, rps16, trnL–trnF, trnH–psbA) representing 50 species from 22 of 23 genera in Ajugoideae, to reconstruct the backbone phylogeny of the subfamily, with emphasis on phylogenetic relationships among Caryopteris, Schnabelia and their closest allies. Key results: (1) Ajugoideae is monophyletic and can be divided into four main clades. (2) Discretitheca and Glossocarya, which have not been included in any previous molecular analysis, are members of Ajugoideae and closely related to Karomia and Rotheca. (3) Expanded Schnabelia is monophyletic, sister to Rubiteucris, and consists of two morphologically distinct clades, recognized here as sect. Cylindricaulis and sect. Schnabelia. (4) Traditionally defined Caryopteris is confirmed to be polyphyletic, with several segregate genera. (5) Recircumscribed Caryopteris was found to be monophyletic, but intrageneric relationships were not fully resolved. Synapomorphies of Caryopteris include boat–shaped nutlets that are winged along the edge, fimbriate anterior corolla lobes, and suprareticulate pollen sculpturing. Caryopteris forrestii var. minor was elevated to species rank based on molecular and morphological evidence.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…(2010) focused on Clerodendrum, Huang & al. (2008) on Trichostema, Barrabé & al. (2015) on Oxera, and Salmaki & al.…”

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Molecular systematics of Caryopteris (Lamiaceae) and its allies with reference to the molecular phylogeny of subfamily Ajugoideae

Xiang

Zhao

Drew

et al. 2018

TAXON

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A large-scale chloroplast phylogeny of the Lamiaceae sheds new light on its subfamilial classification

Cantino

Olmstead

et al. 2016

Sci Rep

157

190

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Lamiaceae, the sixth largest angiosperm family, contains more than 7000 species distributed all over the world. However, although considerable progress has been made in the last two decades, its phylogenetic backbone has never been well resolved. In the present study, a large-scale phylogenetic reconstruction of Lamiaceae using chloroplast sequences was carried out with the most comprehensive sampling of the family to date (288 species in 191 genera, representing approximately 78% of the genera of Lamiaceae). Twelve strongly supported primary clades were inferred, which form the phylogenetic backbone of Lamiaceae. Six of the primary clades correspond to the current recognized subfamilies Ajugoideae, Lamioideae, Nepetoideae, Prostantheroideae, Scutellarioideae, and Symphorematoideae, and one corresponds to a portion of Viticoideae. The other five clades comprise: 1) Acrymia and Cymaria; 2) Hymenopyramis, Petraeovitex, Peronema, and Garrettia; 3) Premna, Gmelina, and Cornutia; 4) Callicarpa; and 5) Tectona. Based on these results, three new subfamilies—Cymarioideae, Peronematoideae, and Premnoideae—are described, and the compositions of other subfamilies are updated based on new findings from the last decade. Furthermore, our analyses revealed five strongly supported, more inclusive clades that contain subfamilies, and we give them phylogenetically defined, unranked names: Cymalamiina, Scutelamiina, Perolamiina, Viticisymphorina, and Calliprostantherina.

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Phylogeny, biogeography and ecological diversification of New Caledonian palms (Arecaceae)

Pérez-Calle,

Bellot,

Kuhnhäuser

et al. 2024

Annals of Botany

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Background and Aims The geographic origin and evolutionary mechanisms underpinning the rich and distinctive New Caledonian flora remain poorly understood. This is due to the complex geological past of the island and to the scarcity of well-resolved species-level phylogenies. Here, we infer phylogenetic relationships and divergence times of New Caledonian palms, which comprise 40 species. We use this framework to elucidate the biogeography of New Caledonian palm lineages, and to explore how extant species may have formed. Methods A phylogenetic tree including 37 New Caledonian palm species and 77 relatives from tribe Areceae was inferred from 151 nuclear genes obtained by targeted sequencing. Fossil-calibrated divergence times were estimated, and ancestral ranges were inferred. Ancestral and extant ecological preferences in terms of elevation, precipitation and substrate were compared between New Caledonian sister species to explore their possible roles as drivers of speciation. Key Results New Caledonian palms form four well-supported clades, inside which relationships are well resolved. Our results support the current classification, but suggest that Veillonia and Campecarpus should be resurrected, and fail to clarify whether Rhopalostylidinae is sister to or nested in Basseliniinae. New Caledonian palm lineages derive from New Guinean and Australian ancestors, which reached the island through at least three independent dispersal events between the Eocene and Miocene. Palms then dispersed out of New Caledonia at least five times, mainly towards Pacific islands. Geographic and ecological transitions associated with speciation events differed across time and genera. Substrate transitions were more frequently associated with older than younger events. Conclusions Neighbouring areas and a mosaic of local habitats shaped New Caledonia’s palm flora, and the island played a significant role in generating palm diversity across the Pacific region. This new spatio-temporal framework will enable population-level ecological and genetic studies to further unpick the mechanisms underpinning New Caledonian palm endemism.

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Recircumscription ofOxera(Lamiaceae: Ajugoideae) to includeFaradayabased on molecular and anatomical data

Cited by 8 publications

References 59 publications

Molecular systematics of Caryopteris (Lamiaceae) and its allies with reference to the molecular phylogeny of subfamily Ajugoideae

Molecular systematics of Caryopteris (Lamiaceae) and its allies with reference to the molecular phylogeny of subfamily Ajugoideae

A large-scale chloroplast phylogeny of the Lamiaceae sheds new light on its subfamilial classification

Phylogeny, biogeography and ecological diversification of New Caledonian palms (Arecaceae)

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