Molecular Phylogeny and Biogeographic Diversification of Linnaeoideae (Caprifoliaceae s. l.) Disjunctly Distributed in Eurasia, North America and Mexico

Wang, Huafeng; Landrein, Sven; Dong, Wenpan; Nie, Ze‐Long; Kondo, Katsuhiko; Funamoto, Tsuneo; Wen, Jun; Zhou, Shiliang

doi:10.1371/journal.pone.0116485

Cited by 34 publications

(81 citation statements)

References 73 publications

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“…Actually, relationships among Symphoricarpos , Triosteum and Leycesteria varied in earlier studies. Some studies showed that Symphoricarpos and Leycesteria formed a sister group (Pyck & Smets, ; Smith, ; Jacobs et al, ), others showed that Symphoricarpos grouped with Triosteum (Bell, ; Beaulieu & Donoghue, ; Wang et al, ). Thus, perhaps it is not strange that two Symphoricarpos species grouped with Leycesteria and Triosteum , respectively, in the current study.…”

Section: Discussionmentioning

confidence: 99%

Revisiting the phylogeny of Dipsacales: New insights from phylogenomic analyses of complete plastomic sequences

Xiang

Dong

Landrein

et al. 2019

J of Sytematics Evolution

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Phylogenetic relationships in Dipsacales have long been a major challenge. Although considerable progress has been made during the past two decades, questions remain; the uncertain systematic positions of Heptacodium, Triplostegia, and Zabelia, in particular, impede our understanding of Dipsacales evolution. Here we use 75 complete plastomic sequences to reconstruct the phylogeny of Dipsacales, of which 28 were newly generated. Two primary clades were recovered that form the phylogenetic backbone of Dipsacales. Seven of the primary clades correspond to the recognized families Adoxaceae, Caprifoliaceae s. str., Diervillaceae, Dipsacaceae, Linnaeaceae, Morinaceae, and Valerianaceae, and one corresponds to Zabelia, which was found to be the closest relative of Morinaceae in all analyses. Additionally, our results, with greatly increased confidence in most branches, show that Heptacodium and Triplostegia are members of Caprifoliaceae s. str. and Dipsacaceae, respectively. The results of our study indicate that the complete plastomic sequences provide a fully‐resolved and well‐supported representation of the phylogenetic relationships within Dipsacales.

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Section: Discussionmentioning

confidence: 99%

Revisiting the phylogeny of Dipsacales: New insights from phylogenomic analyses of complete plastomic sequences

Xiang

Dong

Landrein

et al. 2019

J of Sytematics Evolution

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“…(Wang et al, 2015). One of the most parsimonious trees from an analysis of plastid data (rbcL,matK,ndhA,.…”

Section: Nectary Ultrastructurementioning

confidence: 99%

“…Phylogenetics based on molecular markers have redefined circumscriptions in Linnaeeae (Landrein et al, 2012;Wang et al, 2015), and it is also important to characterize these new groups morphologically (Endress & Matthews, 2012).…”

Section: Nectary Morphologymentioning

confidence: 99%

“…It also emerged that Vesalea is sister to Linnaea (Wang et al, 2015). Zabelia (Rehder) Makino, which was segregated from the tribe on the basis of several morphological characters as well as chromosome number, is sister to the Morina L. and Linnaea clade (Wang et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Landrein. In this study, we provide a detailed analysis of the nectary in Linnaeeae using evidence from recent molecular work as a framework (Wang et al, 2015) (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

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Structure, ultrastructure and evolution of floral nectaries in the twinflower tribe Linnaeeae and related taxa (Caprifoliaceae)

Landrein

Prenner

2016

Bot. J. Linn. Soc.

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Linnaeeae is a small tribe of Caprifoliaceae consisting of six genera and c. 20 species. In Linnaeeae, floral nectaries are located on the corolla-filament-tube and nectar is produced from unicellular glandular hairs. We studied 23 taxa using scanning electron microscopy (SEM), light microscopy (LM) and transmission electron microscopy (TEM) and found two distinct nectary morphologies, zonate and gibbous types, and two distinct types of glandular hair, clavate and smooth base types. Plesiomorphic characters associated with the nectary and identified in the tribe include hypocrateriform corollas, dichogamous flowers, zonate nectaries, wet papillate stigmas, vestigial nectary disc and smooth pollen grains. Apomorphic characters include bilabiate corollas, homogamous flowers, bulging nectaries, dry papillate stigmas and echinulate pollen grains. The nectary structure is similar in Vesalea and Linnaea and differs from the rest of the tribe, in accordance with recent phylogenetic results. Nectar secretion is typically granulocrine with subcuticular accumulation of nectar, which we compared with the secretion in multicellular hairs of Adoxa moschatellina. The cuticle on the hair becomes detached from the cell wall and large subcuticular spaces filled with nectar are formed. Nectar is probably released in areas with a thin cuticle. In Zabelia, the smooth basal part of the hair could help to build up the hydrostatic pressure.

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Reconstructing Dipsacales phylogeny using Angiosperms353: issues and insights

Lee

Gilman

Srivastav

et al. 2021

American J of Botany

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Phylogenetic relationships within major angiosperm clades are increasingly well resolved, but largely informed by plastid data. Areas of poor resolution persist within the Dipsacales, including placement of Heptacodium and Zabelia, and relationships within the Caprifolieae and Linnaeeae, hindering our interpretation of morphological evolution. Here, we sampled a significant number of nuclear loci using a Hyb-Seq approach and used these data to infer the Dipsacales phylogeny and estimate divergence times.METHODS: Sampling all major clades within the Dipsacales, we applied the Angiosperms353 probe set to 96 species. Data were filtered based on locus completeness and taxon recovery per locus, and trees were inferred using RAxML and ASTRAL. Plastid loci were assembled from off-target reads, and 10 fossils were used to calibrate dated trees. RESULTS:Varying numbers of targeted loci and off-target plastomes were recovered from most taxa. Nuclear and plastid data confidently place Heptacodium with Caprifolieae, implying homoplasy in calyx morphology, ovary development, and fruit type. Placement of Zabelia, and relationships within the Caprifolieae and Linnaeeae, remain uncertain. Dipsacales diversification began earlier than suggested by previous angiosperm-wide dating analyses, but many major splitting events date to the Eocene. CONCLUSIONS:The Angiosperms353 probe set facilitated the assembly of a large, single-copy nuclear dataset for the Dipsacales. Nevertheless, many relationships remain unresolved, and resolution was poor for woody clades with low rates of molecular evolution. We favor expanding the Angiosperms353 probe set to include more variable loci and loci of special interest, such as developmental genes, within particular clades.

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Molecular Phylogeny and Biogeographic Diversification of Linnaeoideae (Caprifoliaceae s. l.) Disjunctly Distributed in Eurasia, North America and Mexico

Cited by 34 publications

References 73 publications

Revisiting the phylogeny of Dipsacales: New insights from phylogenomic analyses of complete plastomic sequences

Revisiting the phylogeny of Dipsacales: New insights from phylogenomic analyses of complete plastomic sequences

Structure, ultrastructure and evolution of floral nectaries in the twinflower tribe Linnaeeae and related taxa (Caprifoliaceae)

Reconstructing Dipsacales phylogeny using Angiosperms353: issues and insights

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