Phylogenetic placements of <i>Calathodes</i> and <i>Megaleranthis</i> (Ranunculaceae): Evidence from molecular and morphological data

Wei, Wang; Hu, Hao; Xiao, Xiang; Yu, Sheng‐Xiang; Chen, Zhiduan

doi:10.1002/tax.596006

Cited by 22 publications

(25 citation statements)

References 40 publications

(42 reference statements)

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“…3: A; Fig. S4), which is congruent with the result of Wang et al (). Kumlienia , Arcteranthis , and Trautvetteria form a subclade according to our matK / trnK (not sampling Arcteranthis ), ITS, and three‐ and five‐marker datasets (Fig.…”

Section: Discussionsupporting

confidence: 91%

“…The tribe Ranunculeae consists of 19 genera with approximately 650 species (Tamura, ; Emadzade et al, ); most of these genera are monotypic or internationally disjunctly distributed. Various DNA sequence datasets have been used in elucidating phylogenetic relationships within the tribe, including nuclear ribosomal internal transcribed spacer (nrITS) (Hörandl et al, ; Hoot et al, ), cp matK (Lehnebach et al, ; Wang et al, ), combined ITS and matK / trnK (Paun et al, ; Gehrke & Linder, ; Hoffmann et al, ), and combined ITS and matK / trnK and psbJ‐petA (Emadzade et al, , ; Emadzade & Hörandl, ). Emadzade & Hörandl () also provided a hypothesis on the biogeographic history of Ranunculeae at the generic level.…”

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confidence: 99%

“…Emadzade & Hörandl () also provided a hypothesis on the biogeographic history of Ranunculeae at the generic level. However, the generic level phylogenetic framework obtained from the above‐combined three marker data (Emadzade et al, , ; Emadzade & Hörandl, ) differs markedly from that built from the results of the matK data (Wang et al, ), including the positions of Beckwithia – Cyrtorhyncha , Kumlienia , and Peltocalathos . The ITS tree has relatively low resolution at the generic level within Ranunculeae (Emadzade et al, ).…”

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confidence: 99%

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Revisiting the phylogeny of Ranunculeae: Implications for divergence time estimation and historical biogeography

Wang

Xiao

et al. 2014

J of Sytematics Evolution

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Previous studies based on different molecular datasets have generated conflicting topologies for Ranunculeae. Here, we revisit the phylogeny of Ranunculeae by analyzing the individual matK/trnK, psbJ-petA, and internal transcribed spacer (ITS) data, the combined matK/trnK, psbJ-petA, and ITS dataset, and the combined rbcL, trnL-F, matK/trnK, psbJ-petA, and ITS dataset. Based on the tree-based comparisons, BLAST searches against NCBI of the sequences, and close examination of the alignment, we found that 10 psbJ-petA sequences previously used were questionable (erroneous or problematic) and responsible for previous conflicting topologies. After omitting these questionable sequences, we provide a new phylogeny for Ranunculeae, in which Beckwithia-Cyrtorhyncha, Kumlienia, and Peltocalathos were replaced. These new replacements are supported by corresponding morphological characters. Moreover, three previously proposed intercontinental disjunct distributions within Ranunculus were also refuted. In our framework, our divergence time and biogeographic analyses indicate that divergence time estimates and the ancestral areas reconstructed for 10 of the 15 nodes in the genus-level phylogeny were influenced by elimination of the questionable sequences. The most recent common ancestor of Ranunculeae was inferred to be present in Europe and North America during the late Eocene. Clades I and II began to diversify in Europe and North America, respectively, and subsequently migrated to other continents. This study shows that it is necessary to analyze individual chloroplast DNA region datasets separately to detect questionable sequences early in the study. The combined dataset including the questionable sequences resulted in an erroneous phylogenetic tree, and the use of this tree subsequently affected age estimates and biogeographic analyses.

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Section: Discussionsupporting

confidence: 91%

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confidence: 99%

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confidence: 99%

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Revisiting the phylogeny of Ranunculeae: Implications for divergence time estimation and historical biogeography

Wang

Xiao

et al. 2014

J of Sytematics Evolution

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“…The existing family‐level phylogenetic analyses are surprisingly sparse, often have poor taxon sampling and are based on a single gene only (e.g. Ro et al ., ; Cai et al ., ; Wang et al ., ), which may compromise the current taxonomies, although these issues have recently been addressed by Cossard et al . ().…”

Section: Introductionmentioning

confidence: 97%

Sensitive phylogenetics ofClematisand its position in Ranunculaceae

Lehtonen

Christenhusz

Falck³

2016

Bot. J. Linn. Soc.

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Ranunculaceae are a nearly cosmopolitan plant family with the highest diversity in northern temperate regions and with relatively few representatives in the tropics. As a result of their position among the early diverging eudicots and their horticultural value, the family is of great phylogenetic and taxonomic interest. Despite this, many genera remain poorly sampled in phylogenetic studies and taxonomic problems persist. In this study, we aim to clarify the infrageneric relationships of Clematis by greatly improving taxon sampling and including most of the relevant subgeneric and sectional types in a simultaneous dynamic optimization of phenotypic and molecular data. We also investigate how well the available data support the hypothesis of phylogenetic relationships in the family. At the family level, all five currently accepted subfamilies are resolved as monophyletic. Our analyses strongly imply that Anemone s.l. is a grade with respect to the Anemoclema + Clematis clade. This questions the recent sinking of well‐established genera, including Hepatica, Knowltonia and Pulsatilla, into Anemone. In Clematis, 12 clades conceptually matching the proposed sectional division of the genus were found. The taxonomic composition of these clades often disagrees with previous classifications. Phylogenetic relationships between the section‐level clades remain highly unstable and poorly supported and, although some patterns are emerging, none of the proposed subgenera is in evidence. The traditionally recognized and horticulturally significant section Viorna is both nomenclaturally invalid and phylogenetically unsupported. Several other commonly used sections are likewise unjustified. Our results provide a phylogenetic background for a natural section‐level classification of Clematis.

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“…of subfamily Helloboroideae Hutch (Tamura, , , ), or tribe Trollieae Langlet of subfamily Helloboroideae (Wang, ). However, the molecular phylogenetic studies showed a relatively isolated position of Caltha in Ranunculaceae and that its sister genus was not inferred with certainty (Hoot, ; Jensen et al, ; Johansson, ; Kosuge et al, ; Ro et al, ; Wang et al, , , ), and the tribe Caltheae Bercht. & J. Presl.…”

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confidence: 99%

Molecular phylogeny and historical biogeography of Caltha (Ranunculaceae) based on analyses of multiple nuclear and plastid sequences

Cheng

Xie

2013

J of Sytematics Evolution

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Caltha is a widely distributed genus in the buttercup family (Ranunculaceae) showing interesting distribution patterns in both hemispheres. Evolutionary history of Caltha was examined by means of phylogenetic, molecular dating, and historical biogeographic analyses with a more comprehensive sampling than previous studies. The internal transcribed spacer from the nuclear genome and trnL‐F and atpB‐rbcL regions from the plastid genome were used and analyzed using parsimony and Bayesian methods. Divergence time was estimated using Bayesian dating analyses with multiple fossil calibrations. Historical biogeography was inferred using the Bayes‐DIVA method implemented in RASP. We obtained a well‐resolved and well‐supported phylogeny within the Caltha lineage. Caltha natans Pall. diverged first from the genus and the other species grouped into two clades. Our expanded sampling scheme revealed a complicated evolutionary pattern in the C. palustris complex. Caltha sinogracilis W. T. Wang was resolved to be a member of the C. palustris complex, rather than closely related to C. scaposa Hook. f. & Thomson. Caltha rubriflora B. L. Burtt & Lauener was also revealed to be not just a red‐flower form of C. sinogracilis. The diversification of the genus began at 50.5 mya (95% high posterior density: 37.1–63.9 mya), and its ancestral range was very probably in the Northern Hemisphere. The South American species may derive from western North American ancestors that dispersed along the western American Cordillera during the Cenozoic era. The vicariance model of the Southern Hemisphere species proposed by a previous study was rejected in this study.

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Phylogenetic placements of Calathodes and Megaleranthis (Ranunculaceae): Evidence from molecular and morphological data

Cited by 22 publications

References 40 publications

Revisiting the phylogeny of Ranunculeae: Implications for divergence time estimation and historical biogeography

Revisiting the phylogeny of Ranunculeae: Implications for divergence time estimation and historical biogeography

Sensitive phylogenetics ofClematisand its position in Ranunculaceae

Molecular phylogeny and historical biogeography of Caltha (Ranunculaceae) based on analyses of multiple nuclear and plastid sequences

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