Conservation status of<i>Eryngium viviparum</i>Gay

Romero, M. I.; Ramil, Pablo; Rubinos, Marco

doi:10.1080/12538078.2004.10516020

Cited by 12 publications

(8 citation statements)

References 4 publications

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“…This population is nowadays strongly isolated, whereas in the 80's, about 40 populations were known (Magnanon et al, 2013). The North Iberian populations also experienced a decline in the last decades, due to habitat modification (Romero, Ramil & Rubinos, 2004).…”

Section: Study Speciesmentioning

confidence: 99%

Genetic consequences of long-term isolation for the last French population of Eryngium viviparum (Apiaceae)

Rascle

Flaven

Bioret

et al. 2019

Botanical Journal of the Linnean Society

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Eryngium viviparum (Apiaceae) is an endangered endemic plant of the Atlantic region of Europe, growing in seasonally flooded sites, and is characterized by a highly disjunct distribution. It occurs in just a few sites in the north-western part of the Iberian Peninsula and in a single locality in France. To improve the conservation status of E. viviparum in France, a conservation programme has been implemented to reintroduce the species. Before considering such an operation, genetic studies were conducted to determine the genetic status of the last French population and to identify the genetic source that should be considered for the best reintroduction strategy. Using microsatellite markers, we documented the genetic structure of the last French population and compared its genetic diversity with that of ten Iberian populations, which cover the three geographical regions where the species occurs. As expected, the French population of E. viviparum shows low genetic diversity due to a bottleneck and geographical isolation. The evolutionary potential appears low, with no private alleles in this population. Furthermore, this population is highly differentiated from the Iberian populations in terms of genetic variation and ecological niche. These results bring new questions regarding the conservation of E. viviparum in France, especially for management and reintroduction aimed at favouring genetic diversity and avoiding extinction.

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Section: Study Speciesmentioning

confidence: 99%

Genetic consequences of long-term isolation for the last French population of Eryngium viviparum (Apiaceae)

Rascle

Flaven

Bioret

et al. 2019

Botanical Journal of the Linnean Society

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“…Eryngium viviparum is a small biennial aquatic plant that belongs to Apiaceae family, endemic to the European Atlantic region and with distribution in NW France, NW Portugal and NW Spain (Romero et al, 2004 ). Their natural habitat is flat areas subjected to seasonal flooding, living submerged for 7–9 months of the year.…”

Section: Introductionmentioning

confidence: 99%

Computer-Assisted Recovery of Threatened Plants: Keys for Breaking Seed Dormancy of Eryngium viviparum

Ayuso

Rego²,

Landín

et al. 2017

Front. Plant Sci.

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Many endangered plants such as Eryngium viviparum (Apiaceae) present a poor germination rate. This fact could be due to intrinsic and extrinsic seed variability influencing germination and dormancy of seeds. The objective of this study is to better understand the physiological mechanism of seed latency and, through artificial intelligence models, to determine the factors that stimulate germination rates of E. viviparum seeds. This description could be essential to prevent the disappearance of endangered plants. Germination in vitro was carried out under different dormancy breaking and incubation procedures. Percentages of germination, viability and E:S ratio were calculated and seeds were dissected at the end of each assay to describe embryo development. The database obtained was modeled using neurofuzzy logic technology. We have found that the most of Eryngium seeds (62.6%) were non-viable seeds (fully empty or without embryos). Excluding those, we have established the germination conditions to break seed dormancy that allow obtaining a real germination rate of 100%. Advantageously, the best conditions pointed out by neurofuzzy logic model for embryo growth were the combination of 1 mg L−1 GA3 (Gibberellic Acid) and high incubation temperature and for germination the combination of long incubation and short warm stratification periods. Our results suggest that E. viviparum seeds present morphophysiological dormancy, which reduce the rate of germination. The knowledge provided by the neurofuzzy logic model makes possible not just break the physiological component of dormancy, but stimulate the embryo development increasing the rate of germination. Undoubtedly, the strategy developed in this work can be useful to recover other endangered plants by improving their germination rate and uniformity favoring their ex vitro conservation.

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“…1), and was previously present in north‐west Portugal (Dupont, 1962). At the present time, there is a single known population in France (Annezo, Lesouef & Riviere, 1995) and the remaining examples (more than 93% of E. viviparum of the world) are all located in north‐west Spain (Romero & Rubinos, 2003; Romero, Ramil & Rubinos, 2004).…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity among genotypes ofEryngium viviparum(Apiaceae): a plant threatened throughout its natural range

Rodríguez-Gacio

Jesús

Romero

et al. 2009

Botanical Journal of the Linnean Society

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Eryngium viviparum (Apiaceae) is an endangered aquatic plant, listed as threatened in several European documents. The genotypes are distributed patchily in various wetlands in the north-west of Spain and one is located in north-west France. The study of the genetic diversity of a small population of a rare species is important for conservation and studies aimed at recovery programmes. Random amplified polymorphic DNA (RAPD) markers were used to assess the genetic diversity among five Spanish and one French genotype. This technique has contributed to the knowledge of the genetic diversity in E. viviparum, showing a greater genetic distance between the Spanish cluster formed by S1, S4 than the second cluster formed by S2, S3, S5 and the French genotype. Mantel testing did not show a significant correlation between genetic and geographical distances, but a significant correlation was found between altitude, habitat and genetic distance. The French genotype showed the highest level of polymorphism (28.16) and the highest percentage of exclusive markers (32%). One of these was isolated, purified, cloned and sequenced, revealing a high homology to a protein mainly expressed in roots. This could represent, for the F genotype, an adaptation to a specific habitat near the sea compared with the Spanish genotypes which grow inland.

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Conservation status ofEryngium viviparumGay

Cited by 12 publications

References 4 publications

Genetic consequences of long-term isolation for the last French population of Eryngium viviparum (Apiaceae)

Genetic consequences of long-term isolation for the last French population of Eryngium viviparum (Apiaceae)

Computer-Assisted Recovery of Threatened Plants: Keys for Breaking Seed Dormancy of Eryngium viviparum

Genetic diversity among genotypes ofEryngium viviparum(Apiaceae): a plant threatened throughout its natural range

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