Nuphar Sm.

Heslop‐Harrison, Y.

doi:10.2307/2257147

Cited by 37 publications

(31 citation statements)

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“…The European representatives belong to the typical subspecies (subsp. pumila) (Heslop-Harrison 1955;Meusel et al 1965;Dezhi and Padgett 2001;Padgett 2007). In the Alps it has been described from very scattered localities in Switzerland (Northern Alps), Austria (Kärnten, Tirol) and Germany (Bavaria and eastern Baden-Württemberg).…”

Section: Study Speciesmentioning

confidence: 99%

“…Nuphar pumila is a typical climate relict with only few isolated populations surviving in central Europe, the Alps and neighbouring mountain systems (Heslop-Harrison 1955;Meusel et al 1965;Roweck 1988). The main distribution area stretches between Northern Europe and eastwards through central and southern Russia to Manchuria and probably Japan.…”

Section: Study Speciesmentioning

confidence: 99%

“…N. pumila shares a common ancestor with the widespread lowland species Nuphar lutea, and both taxa form a fertile hybrid, named Nuphar 9 spenneriana Gaudin (Padgett et al 1999;Roweck and Reinöhl 1986;Roweck 1988), that usually occurs in areas where the distributions of both parental species overlap (Heslop-Harrison 1953, 1955. The hybrid Nuphar 9 intermedia is diploid and has the same chromosome number (2n = 34) as both parental species and all other Nuphar spp.…”

Section: Introductionmentioning

confidence: 99%

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Hybridization as a threat in climate relict Nuphar pumila (Nymphaeaceae)

Arrigo

Bétrisey

Graf³

et al. 2016

Biodivers Conserv

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Field studies and conceptual work on hybridization-mediated extinction risk in climate relicts are extremely rare. Nuphar pumila (Nymphaeaceae) is one of the most emblematic climate relicts in Europe with few isolated populations in the Alpine arc. The extent of introgression with related lowland and generalist species Nuphar lutea has never been studied using molecular methods. All biogeographical regions where N. pumila naturally occurs in the neighbourhood of the Alpine arc were sampled and studied using nuclear microsatellite markers. Furthermore, we used forward-in-time simulations and Approximate Bayesian Computation to check whether an introgression scenario fits with the observed admixture patterns and estimated the demographic parameters associated with this process. Our study confirms ongoing hybridization between N. pumila and N. lutea and validates it by the use of population models. More than 40 % of investigated N. pumila individuals were admixed and hybrids were found in over 60 % of studied populations. The introgression is bidirectional and is most likely a result of very recent gene flow. Our work provides strong evidence for rapid extinction risk and demographic swamping between specialized climatic relicts and closely related generalists. The remaining pure populations of N. pumila are rare in the Alpine arc and deserve high conservation priority.

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Section: Study Speciesmentioning

confidence: 99%

Section: Study Speciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hybridization as a threat in climate relict Nuphar pumila (Nymphaeaceae)

Arrigo

Bétrisey

Graf³

et al. 2016

Biodivers Conserv

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“…Aus den wichtigsten Publikationen und Schlüsseln zur Schweizer Flora und zur Nuphar-Gattung wurden möglichst alle morphologischen Unterschiede ermittelt (Heslop-Harrison 1953, 1955Meusel et al 1965;Hess et al 1980;Roweck und Reinöhl 1986;Roweck 1988;Aeschimann und Burdet 1989;Binz und Heitz 1990;Oberdorfer 1994;Lauber und Wagner 2003). Die ausführlichsten Informationen und Schlussfolgerungen sind in den Werken von Roweck und Reinöhl (1986) und Roweck (1988) zu finden.…”

Section: Identifikation Von Nuphar Pumilaunclassified

“…B. für die endemische N. x saijoensis in West-Japan, Padgett et al 2002). Solche Schutzmassnahmen sind nur dort begründet, wo N. pumila bereits ausgestorben ist, und nur noch Hybride vorkommen (Heslop-Harrison 1955;Roweck 1988).…”

Section: Diskussionunclassified

Vorkommen der Kleinen Teichrose Nuphar pumila und des Hybrids N. x intermedia in der Schweiz

Kozlowski

Eggenberg

2005

Bot. Helv.

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Kozlowski G. and Eggenberg S. 2005. Distribution of the least water-lily (Nuphar pumila) and the hybrid N. x intermedia in Switzerland. Bot. Helv. 115: 125-136.The least water-lily (N. pumila (TIMM.) DC) is very rare and endangered in Switzerland and Central Europe. To provide a basis for its conservation, we present a distribution map with all natural, re-introduced and extinct populations in Switzerland. Only four natural populations of N. pumila still exist in Switzerland: Lac de Lussy and Lac des Joncs (FR), Gräppelensee (SG), and Kämmoosteich (ZH). These populations and their sites (lakes) are described, and the co-occurring plant species are listed. Results suggest that the populations from Kämmoosteich and Lac de Lussy are affected by hybridisation and competition with N. lutea. In these two lakes, the hybrid N. x intermedia was very abundant. The presence of N. lutea and N. intermedia in Kämmoosteich and Lac de Lussy should be regarded as one of the most serious threats of pure N. pumila populations. To facilitate further investigation and conservation field work, a detailed morphological description of the two taxons is presented and illustrated by original drawings. To escape extinction in Switzerland, N. pumila needs further appropriate action plans for all natural and newly re-introduced sites as well as an improved knowledge of its genetic structure and habitat preferences.Key words: Conservation biology, distribution map, endangered plant species, hybridisation, Nupharetum pumili, Nympheaceae. EinleitungWährend des letzten Jahrhunderts hat sich unsere Landschaft in vielen Regionen stark verändert; damit wurde auch die Pflanzenwelt erheblich beeinträchtigt. Besonders bedroht sind Arten feuchter Standorte, deren natürliche Lebensgrundlagen durch Entwässerung, Torfausgrabungen und Intensivierung der Landwirtschaft weitgehend 1 Published in "Botanica Helvetica 115(2): 125 -136, 2005" which should be cited to refer to this work.

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Phylogeny and evolutionary patterns in Nymphaeales: integrating genes, genomes and morphology

Borsch

Löhne

Wiersema³

2008

TAXON

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The Nymphaeales (water lilies) clade has diverged as the second branch in the tree of angiosperms and is composed of the three families Cabombaceae, Nymphaeaceae and Hydatellaceae. Extant species diversity is constituted by 82 species, about half of which belong to the nearly globally distributed genus Nymphaea. DNA sequence datasets of multiple non‐coding and rapidly evolving regions from all three genomic compartments (ca. 8 kb of sequence per taxon) for a dense sampling of Nymphaeales, Austrobaileyales and Amborella were examined. In an attempt to review the literature on water lilies of the past decades a matrix comprising 62 morphological characters was generated. The crown group of extant Nymphaeales is supported by a series of synapomorphies, several of which have evolved in line with the acquisition of herbaceous habits and adaptations to an aquatic lifestyle such as the loss of cambium and sclerenchyma. Further innovations evolved subsequently within the diversification of the water lily crown group such as hydropotes, or an aril as floating device for the seeds in core Nymphaeaceae that have evolved fruits ripening under water. Both Hydatellaceae and Cabombaceae exhibit many derived features that in part may be explained as adaptations to anemophily. The Nymphaeaceae are supported as monophyletic by most character partitions, including morphology, as are Nuphar and Barclaya as successive sisters to the core Nymphaeacae (Nymphaea, Ondinea, Euryale, Victoria). Parsimony analysis of the morphological dataset alone yielded a well resolved and statistically supported tree. Ondinea appears as a close relative of the Australian subg. Anecphya clade within Nymphaea by all genomic compartments and morphology. Earlier hypotheses of Nymphaea being paraphyletic to the Euryale‐Victoria clade are inferred in nuclear trees, albeit with low support. Different morphological characters equivocally support a position of the Euryale‐Victoria clade as sister to the subg. Hydrocallis‐Lotus clade within Nymphaea or as sister to all species of Nymphaea. The diversification of the water lily clade is further characterized by a trend towards increased complexity in floral architecture.

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Nuphar Sm.

Cited by 37 publications

References 0 publications

Hybridization as a threat in climate relict Nuphar pumila (Nymphaeaceae)

Hybridization as a threat in climate relict Nuphar pumila (Nymphaeaceae)

Vorkommen der Kleinen Teichrose Nuphar pumila und des Hybrids N. x intermedia in der Schweiz

Phylogeny and evolutionary patterns in Nymphaeales: integrating genes, genomes and morphology

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