Phylogenetic Affinities of South American Anemone (Ranunculaceae), including the Endemic Segregate Genera, Barneoudia and Oreithales

Meyer, Kyle; Hoot, Sara B.; Arroyo, Mary T. K.

doi:10.1086/650153

Cited by 28 publications

(26 citation statements)

References 25 publications

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“…has been suggested to include Barneoudia , Hepatica , Knowltonia , Oreithales , and Pulsatilla , because this group is strongly supported as monophyletic by the combined nrITS and atpB-rbcL dataset [25, 26, 41, 65]. Our phylogenetic analyses also recovered the monophyly of Anemone s.l.…”

Section: Discussionmentioning

confidence: 52%

“…According to molecular phylogenies [25, 26, 41, 65], Barneoudia , Hepatica , Knowltonia , Oreithales , and Pulsatilla were suggested to subsumed with Anemone . When Anemoclema has transferred to subtribe Clematidinae [38], current subtribe Anemoninae includes Anemone s.l.…”

Section: Discussionmentioning

confidence: 99%

“…The genus Anemone contained more than 150 species, and it is distributed throughout the world. Molecular phylogenetic studies recognized that Hepatica , Pulsatilla and Knowltonia are nested within Anemone , and that they should be subsumed within Anemone [23–25]. Then, Hoot et al [26] and Mayer et al [25] revealed that two South American endemic genera Barneoudia and Oreithales should be also included in Anemone .…”

Section: Introductionmentioning

confidence: 99%

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Phylogenetic reassessment of tribe Anemoneae (Ranunculaceae): Non-monophyly of Anemone s.l. revealed by plastid datasets

et al. 2017

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Morphological and molecular evidence strongly supported the monophyly of tribe Anemoneae DC.; however, phylogenetic relationships among genera of this tribe have still not been fully resolved. In this study, we sampled 120 specimens representing 82 taxa of tribe Anemoneae. One nuclear ribosomal internal transcribed spacer (nrITS) and six plastid markers (atpB-rbcL, matK, psbA-trnQ, rpoB-trnC, rbcL and rps16) were amplified and sequenced. Both Maximum likelihood and Bayesian inference methods were used to reconstruct phylogenies for this tribe. Individual datasets supported all traditional genera as monophyletic, except Anemone and Clematis that were polyphyletic and paraphyletic, respectively, and revealed that the seven single-gene datasets can be split into two groups, i.e. nrITS + atpB-rbcL and the remaining five plastid markers. The combined nrITS + atpB-rbcL dataset recovered monophyly of subtribes Anemoninae (i.e. Anemone s.l.) and Clematidinae (including Anemoclema), respectively. However, the concatenated plastid dataset showed that one group of subtribes Anemoninae (Hepatica and Anemone spp. from subgenus Anemonidium) close to the clade Clematis s.l. + Anemoclema. Our results strongly supported a close relationship between Anemoclema and Clematis s.l., which included Archiclematis and Naravelia. Non-monophyly of Anemone s.l. using the plastid dataset indicates to revise as two genera, new Anemone s.l. (including Pulsatilla, Barneoudia, Oreithales and Knowltonia), Hepatica (corresponding to Anemone subgenus Anemonidium).

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Section: Discussionmentioning

confidence: 52%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Phylogenetic reassessment of tribe Anemoneae (Ranunculaceae): Non-monophyly of Anemone s.l. revealed by plastid datasets

et al. 2017

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“…A. multifida is hypothesized to be an allotetraploid based on observations of two distinct chromosome sets, one of which is similar to chromosomes from a clade of alpine specialist species, whereas the other set is more similar to chromosomes from a lowland clade [52], [53]. Therefore, A. multifida may possess alternate copies of alleles that are advantageous in alpine environments (from the “alpine” chromosome set) and lowland environments (from the “lowland” chromosome set), which may explain its wide habitat range [52], [53]. Both sympatric and allopatric populations of A. multifida exhibit extensive morphological variation [52], [53].…”

Section: Methodsmentioning

confidence: 99%

“…Therefore, A. multifida may possess alternate copies of alleles that are advantageous in alpine environments (from the “alpine” chromosome set) and lowland environments (from the “lowland” chromosome set), which may explain its wide habitat range [52], [53]. Both sympatric and allopatric populations of A. multifida exhibit extensive morphological variation [52], [53]. Throughout its North American distribution there are white, red and pink flowers, whereas only white flowers occur in South America.…”

Section: Methodsmentioning

confidence: 99%

Natural Selection and Neutral Evolution Jointly Drive Population Divergence between Alpine and Lowland Ecotypes of the Allopolyploid Plant Anemone multifida (Ranunculaceae)

2013

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Population differentiation can be driven in large part by natural selection, but selectively neutral evolution can play a prominent role in shaping patters of population divergence. The decomposition of the evolutionary history of populations into the relative effects of natural selection and selectively neutral evolution enables an understanding of the causes of population divergence and adaptation. In this study, we examined heterogeneous genomic divergence between alpine and lowland ecotypes of the allopolyploid plant, Anemone multifida. Using peak height and dominant AFLP data, we quantified population differentiation at non-outlier (neutral) and outlier loci to determine the potential contribution of natural selection and selectively neutral evolution to population divergence. We found 13 candidate loci, corresponding to 2.7% of loci, with signatures of divergent natural selection between alpine and lowland populations and between alpine populations (Fst = 0.074–0.445 at outlier loci), but neutral population differentiation was also evident between alpine populations (FST = 0.041–0.095 at neutral loci). By examining population structure at both neutral and outlier loci, we determined that the combined effects of selection and neutral evolution are associated with the divergence of alpine populations, which may be linked to extreme abiotic conditions and isolation between alpine sites. The presence of outlier levels of genetic variation in structured populations underscores the importance of separately analyzing neutral and outlier loci to infer the relative role of divergent natural selection and neutral evolution in population divergence.

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

Wei

Xiao

et al. 2010

TAXON

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Calathodes and Megaleranthis are two eastern Asian endemic genera of Ranunculaceae with controversial tribal position and/or taxonomic status. In this study, we used matK sequences to determine the tribal position of Calathodes and Megaleranthis within the family, and three molecular loci (matK, trnL‐F, ITS) and morphological data to further clarify their phylogenetic relationships and taxonomic status. All analyses show that Calathodes and Megaleranthis belong in the tribe Adonideae, and that Calathodes is monophyletic and closely related to Trollius. The latter two genera share rhizomes not well developed and pollen grains with striate exine ornamentation, but markedly differ in petals, follicles, receptacles, pollen grains, and chromosomes. Trollius contains two major clades with different geographical distributions. Megaleranthis is embedded in clade I and sister to Trollius macropetalus, with which it shares fruits with long beaks and a 7 bp deletion in the trnL‐F dataset. Adonideae are redelimited as consisting of three genera, Adonis, Calathodes and Trollius. Morphological synapomorphies for the tribe are lacking.

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Phylogenetic Affinities of South American Anemone (Ranunculaceae), including the Endemic Segregate Genera, Barneoudia and Oreithales

Cited by 28 publications

References 25 publications

Phylogenetic reassessment of tribe Anemoneae (Ranunculaceae): Non-monophyly of Anemone s.l. revealed by plastid datasets

Phylogenetic reassessment of tribe Anemoneae (Ranunculaceae): Non-monophyly of Anemone s.l. revealed by plastid datasets

Natural Selection and Neutral Evolution Jointly Drive Population Divergence between Alpine and Lowland Ecotypes of the Allopolyploid Plant Anemone multifida (Ranunculaceae)

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

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