How just a few makes a lot: Speciation via reticulation and apomixis on example of European brambles (Rubus subgen. Rubus, Rosaceae)

Sochor, Michal; Vašut, Radim J.; Sharbel, Timothy F.; Trávníček, Bohumil

doi:10.1016/j.ympev.2015.04.007

Cited by 83 publications

(134 citation statements)

References 88 publications

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“…Already Gustafsson (1943) and Richards (1973) hypothesised this origin in apomict Rubus and Taraxacum species respectively, and recent molecular studies of the evolutionary background of species in Rubus subgen. Rubus largely confirmed this hypothesis (Sochor et al 2015). As was reviewed by Hörandl (2006), geographical parthenogenesis has a more complex background though, and also includes advantages of polyploidy and/or hybrid origin, better colonisation abilities because of uniparental reproduction, introgression of apomixis into sexuals, niche differentiation of clones, and biotic interactions.…”

Section: Phytogeographical Aspectsmentioning

confidence: 69%

“…Gustafsson (1943) hypothesized that apomixis in Rubus subg. Rubus originated as a result of hybridization events between (now extinct) ancestral species and subsequent polyploidisation after the last glaciation, a hypothesis that was largely confirmed by a recent broad-scale molecular study of European brambles (Sochor et al 2015). In that study, it was shown that the European apomictic brambles probably originated from only six ancestral species, largely after the retreat of the Pleistocene ice sheets.…”

Section: Introductionmentioning

confidence: 82%

“…All other European taxa in the subgenus are considered allopolyploid facultative apomict derivates of only a few parental species. In a recent study, Sochor et al (2015) could detect six parental gene-pools in their study of the evolution of Rubus subgen. Rubus.…”

Section: Diversity Taxonomy and Systematicsmentioning

confidence: 99%

“…They concluded that the current diversity of the subgenus is a result of the hybridisation and subsequent polyploidisation of R. ulmifolius, R. canescens, R. caesius, Rubus idaeus L. 1753, and two unknown and extinct sexual species, one of which belonged to series Glandulosi (Wimmer & Grabowski) Focke 1877, the other to series Rubus. Sochor et al (2015) sketched a highly complex reproduction system in subgen. Rubus.…”

Section: Diversity Taxonomy and Systematicsmentioning

confidence: 99%

“…The florulas differ in minimum temperature in January, mean precipitation in August, and elevation. Although a clear view of the relationship between the bramble flora in the British Isles and the continental flora is obscured by the lack of data from Belgium and France, the major biogeographical patterns coincide with the genetic structure of the genus as published by Sochor et al (2015). Other factors forming the basis for the observed patterns are isolation (especially in the British Isles), and arguably also landscape history and landscape patterns.…”

Section: Introductionmentioning

confidence: 97%

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Concealed diversity : taxonomical, phytogeographical and phytosociological notes on brambles (Rubus L. subgen. Rubus) in north-west Europe

Haveman¹

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Section: Phytogeographical Aspectsmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 82%

Section: Diversity Taxonomy and Systematicsmentioning

confidence: 99%

Section: Diversity Taxonomy and Systematicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

See 3 more Smart Citations

Concealed diversity : taxonomical, phytogeographical and phytosociological notes on brambles (Rubus L. subgen. Rubus) in north-west Europe

Haveman¹

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Spannungsfeld Forstwirtschaft und Naturschutz

Schulze

Ammer

2015

Biologie in unserer Zeit

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Die Arbeit gibt einen Überblick über die zeitliche Entwicklung der Flora in Deutschland mit besonderer Berücksichtigung der an Waldstandorte gebundenen Arten. Die Zahl der Pflanzenarten hat über die Zeit kontinulierlich zugenommen. Dies ist vor allem eine Folge der Landnutzung, durch die auch einige gefährdete Arten erhalten werden. In forstlich bewirtschafteten Wäldern ist der Pflanzenartenvielfalt größer in als in Wäldern unter Naturschutz. Keine der obligaten Waldarten ist in den letzten 250 Jahren durch die Waldbewirtschaftung verloren gegangen. Für Arten mit besonderen Habitat‐Ansprüchen sind alternative Schutzprogramme zu einer Nicht‐Bewirtschaftung nötig, um spezielle Lebensräume zu erhalten.

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Global shortfalls in threat assessments for endemic flora by country

Gallagher

Allen

Govaerts

et al. 2023

Plants People Planet

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Societal Impact StatementPlants are fundamental to terrestrial and aquatic ecosystems and are key to human livelihoods. To protect plant diversity, systematic approaches to conservation assessment are needed. Many nations have legislation or other policy instruments that seek to protect biodiversity (including plants), and species‐level assessments are essential for identifying the most threatened species that require special and immediate protection measures. Some plants occur in only one place (for instance, a single country) and here we have estimated how many of these ‘endemic’ species have had their threats assessed in each country or close country‐equivalent worldwide. We show that the level of assessment completion is only weakly related to the income of countries or the likely level of threat that species face.Summary The Global Strategy for Plant Conservation ambitiously called for an assessment of the conservation status of all recognised plant taxa by 2020. This target was not met in the short term. Nevertheless, the need for conservation assessments remains urgent as plants go extinct and face increasing threats from human impacts on the biosphere. Here, the completeness of threat assessments for endemic flora in 179 countries or their close equivalents was assessed. To do so, distribution information from the World Checklist of Vascular Plants was combined with assessments collated in the ThreatSearch database. The completeness of assessments was expected to be associated with the objective affluence of countries (measured using inequality‐adjusted Human Development Index (IHDI)) and/or the exposure of their plant species to threats associated with human impacts (measured using Global Human Modification index (GHM)). The number of endemic species per country was also hypothesised to influence the completion of assessments. Overall, 58% of all country‐based endemic species examined have no conservation assessment (127,643 species). Countries' progress toward the completion of threat assessments for endemic plants could not be confidently predicted by IHDI, GHM or the richness of endemic plant flora. The shortfall in threat assessments identified here restricts national regulation of actions which imperil plant species, with particular consequences for endemic plant species subject to local laws. Some nations with high IHDI scores (i.e. wealthier nations) are not systematically assessing extinction risk in their endemic species. Scarce funding should be directed to global hotspots of endemism with few available resources for assessment.

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How just a few makes a lot: Speciation via reticulation and apomixis on example of European brambles (Rubus subgen. Rubus, Rosaceae)

Cited by 83 publications

References 88 publications

Concealed diversity : taxonomical, phytogeographical and phytosociological notes on brambles (Rubus L. subgen. Rubus) in north-west Europe

Concealed diversity : taxonomical, phytogeographical and phytosociological notes on brambles (Rubus L. subgen. Rubus) in north-west Europe

Spannungsfeld Forstwirtschaft und Naturschutz

Global shortfalls in threat assessments for endemic flora by country

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