Nadja Korotkova

Nadja Korotkova
Freie Universität Berlin | FUB · Botanischer Garten und Botanisches Museum

Dr. rer. nat.
Coordinator of the Global Caryophyllales Initiative; Research data curator

About

37
Publications
57,912
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
903
Citations
Additional affiliations
July 2011 - present
Freie Universität Berlin
Position
  • Coordinator of the Caucasus Plant Biodiversity Initiative
May 2005 - July 2011
University of Bonn

Publications

Publications (37)
Article
Full-text available
The Caryophyllales TEN is one of the Taxonomic Expert Networks for the World Flora Online (WFO, worldfloraonline.org). It was initiated in 2011 with the aim to create a global taxonomic synthesys of the angiosperm order Caryophyllales (about 6% of the angiosperm species). The network currently includes about 170 scientists from 36 countries. The fi...
Article
Full-text available
In this study, we present an overall phylogenetic framework for Dianthus using four plastid regions (matK-trnK-psbA, rpl32-trnL, trnQ-rps16) and nuclear ITS and a species-level checklist for the genus developed by using all available databases and the literature. The trees from the plastid dataset depict a clade of Dianthus that also includes Velez...
Article
Full-text available
This data paper presents a largely phylogeny-based online taxonomic backbone for the Cactaceae compiled from literature and online sources using the tools of the EDIT Platform for Cybertaxonomy. The data will form a contribution of the Caryophyllales Network for the World Flora Online and serve as the base for further integration of research result...
Article
Rhipsalis rhombea is common in living collections, but the name has been used ambiguously in recent decades and has never been typified. We review the taxonomic history of this species and conclude that the name can be applied unambiguously. We therefore establish a neotype for Rhipsalis rhombea Pfeiff. and give a detailed morphological characteriz...
Article
Full-text available
This is the twelfth of a series of miscellaneous contributions, by various authors, where hitherto unpublished data relevant to both the Med-Checklist and the Euro+Med (or Sisyphus) projects are presented. This instalment deals with the families Asparagaceae (incl. Hyacinthaceae), Boraginaceae, Cactaceae, Caryophyllaceae, Chenopodiaceae, Compositae...
Article
Full-text available
The Hylocereeae is a monophyletic group in which eight genera are recognized based on molecular data. However, relationships between the genera remain partially resolved. In this study, combined analyses of molecular and structural characters for Hylocereeae were carried out with the aims of fnding structural synapomorphies that support the genera...
Article
Campanula is one of the species-rich genera of the bellflower family (Campanulaceae), in a wider sense with ∼600 species, growing in a wide range of habitats in the northern hemisphere. The Caucasus is one of the areas with especially many endemic Campanula species. The Scapiflorae group comprises alpine and subalpine perennial rocky plants, which...
Article
Full-text available
The ongoing paradigm shift in taxonomy from individual contributions to a truly collaborative and forward-looking endeavour results in a number of challenges related to distributed data management. Examination of physical specimens remains a key task, but searching for specimen data, literature, and name information is now mostly done online. In th...
Article
Jurinea (Asteraceae: Cardueae) is a large Eurasian genus of about 180 species with centres of diversity in Central and Southwest Asia and the eastern Mediterranean. The genus includes many species with adaptations to xero‐ and chasmophytic habitats and comprises numerous endemics, especially in the Caucasus. Generic delimitations between Jurinea an...
Article
Full-text available
The Caryophyllales Network strives to assemble an online dynamic synthesis of the order Caryophyllales, uniting the current knowledge about the phylogeny of the order with up-to-date information on the individual taxa contained. Capturing taxonomic data and the decision processes involved in the definition and circumscription of the taxa requires h...
Article
With approximately 25 endemic species, the genus Pyrus (pears) is highly diverse in the Caucasus ecoregion. The majority of Caucasian pears inhabit xerophytic open woodlands or similar habitats, to which they display morphological adaptations, such as narrow leaves. The other species, both Caucasian and non-Caucasian taxa, mainly inhabit mesophytic...
Article
Full-text available
The tribe Hylocereeae are represented by mainly Central American-Mexican epiphytic, hemi-epiphytic and climbing cacti. They are popular due to their spectacular nocturnal flowers and have some importance as crops grown for their edible fruits. We present the first comprehensive phylogenetic study of the Hylocereeae sampling 60 out of the 63 current...
Chapter
Full-text available
Euro+Med: Cactaceae. - Published on the internet at (please copy and paste the URL into your browser window): http://ww2.bgbm.org/EuroPlusMed/PTaxonDetail.asp?NameId=94373&PTRefFk=7500000
Article
Full-text available
Campanula s.l. is one of the most speciose flowering plant lineages of the Holarctic (ca. 600 species). In the present study we sequenced three regions of the plastid genome (petD, rpl16 and trnK/matK) across a broad sample of Campanula s.l., which markedly improved phylogenetic resolution and statistical support compared to previous studies. Based...
Article
Full-text available
The Caryophyllales constitute a major lineage of flowering plants with approximately 12500 species in 39 families. A taxonomic backbone at the genus level is provided that reflects the current state of knowledge and accepts 749 genera for the order. A detailed review of the literature of the past two decades shows that enormous progress has been ma...
Article
Full-text available
The Cactaceae with c. 1,435 species are the most important plant family of the arid regions of the Americas. Recent revisions and molecular studies resulted in an improved knowledge of the phylogeny and taxonomy of this group. Due to their high value as ornamental plants, countless publications with data on ecological preferences and geographic occ...
Article
Full-text available
Plastid genomes exhibit different levels of variability in their sequences, depending on the respective kinds of genomic regions. Genes are usually more conserved while noncoding introns and spacers evolve at a faster pace. While a set of about thirty maximum variable noncoding genomic regions has been suggested to provide universally promising phy...
Article
Full-text available
Premise of the study: The current study aimed at developing nuclear microsatellite markers for the relict tree species Zelkova carpinifolia , which is threatened in its natural range in the South Caucasus. Methods and Results: Pyrosequencing of an enriched microsatellite library on the Roche FLX platform using the 454 Titanium kit produced 86,058 s...
Book
Full-text available
The Orchidaceae with some 22 000 species is one of the two largest plant families. Despite of the vast literature on orchids, rather little is known about their seeds, which are generally considered as wind dispersed, small and reduced “dust seeds”. Based on some 1400 collections of orchid seeds analysed by SEM and other methods over the last four...
Article
Amborella trichopoda Baill., the most ancestral angiosperm, has been successfully cultivated in the Botanic Gardens of the University of Bonn in Germany (BG Bonn) for more than a decade. The distribution of this plant – limited to the South Pacific island of New Caledonia – and its cultivation has so far only been achieved in a few botanic gardens....
Article
Full-text available
• The Cactaceae are a major New World plant family and popular in horticulture. Still, taxonomic units and species limits have been difficult to define, and molecular phylogenetic studies so far have yielded largely unresolved trees, so relationships within Cactaceae remain insufficiently understood. This study focuses on the predominantly epiphyti...
Article
Full-text available
Pfeiffera is a genus of epiphytic, terrestrial and epilithic cacti. Its acceptance, circumscription and closest relatives have been debated. In the context of a phylogenetic survey of epiphytic cacti, we have studied relationships in Pfeiffera, sampling eight of nine species and using sequence data from three group II introns (trnK, rpl16, trnG) ,...
Article
Full-text available
For more up to date information regarding our Cactus distribution dataset please compare: https://www.researchgate.net/publication/270476747_Biogeography_and_Biodiversity_of_Cacti
Article
Full-text available
The Titan arum (Araceae) produces the largest bloom of all flowering plants. Its flowering period of two days is divided into a female flowering phase in the first night and a male flowering phase in the second night. Recently, we have documented thermogenesis in the spadix of the Titan arum during the female flowering phase. Here, we document a se...
Article
Full-text available
Malpighiales are one of the most diverse orders of angiosperms. Molecular phylogenetic studies based on combined sequences of coding genes allowed to identify major lineages but hitherto were unable to resolve relationships among most families. Spacers and introns of the chloroplast genome have recently been shown to provide strong signal for infer...
Article
An outstanding flagship species in the plant kingdom is the Titan arum (Amorphophallus titanum), which produces a fountain-like bloom up to 3 m high. The unique appearance of three simultaneous inflorescences in May 2006 was a chance to analyse the flowering behaviour and thermogenesis of this giant. For the first time, the heating of the central c...
Article
Full-text available
Chloroplast introns have a high potential as tools for phylogeny inference and DNA barcoding. This study examines the molecular evolution of the petD group II intron in Campanulaceae based on a sequence data set of 114 ingroup taxa. Three small mutational hotspots had to be excluded from phylogenetic analysis, the two most variable being located in...

Network

Cited By

Projects

Projects (2)
Project
MAIN GOAL: Building an expert network to create a dynamic monographic synthesis of the order Caryophyllales. Caryophyllales constitute about 6% of global flowering plant diversity, with an estimated number of 12,500 species in more than 30 families. The Caryophyllales are ecologically very diverse and also include many economically important species. The Caryophyllales initiative (http://caryophyllales.org/) uses a network approach towards building a modern monographic synthesis of this group of plants. FURTHER INFORMATION: Specific objectives of the initiative are: • to bring together Caryophyllales specialists from all over the world and to facilitate collaborations (Caryophyllales Network and Caryophyllales conferences) • to develop an open access online information system on the species diversity in the Caryophyllales (Caryophyllales portal powered by the EDIT Platform for Cybertaxonomy) Caryopyllales Network. Currently, more than 150 individual scientists from 20 countries are involved. The Network was started in 2011 on the basis of an institutional partnership of the Botanic Garden and Botanical Museum Berlin (including herbarium B), the Universidad Nacional Autónoma de México’s Instituto de Biología (including herbarium MEXU) and the Instituto de Botánica Darwinion in Argentina (including herbarium SI). All three institutions are committed to contribute their existing expertise in Caryophyllales research into a larger initiative based on a dynamic workflow (see Borsch & al. 2015, Persp. Plant Ecol. Evol. Syst 17, 284-300 for more details). The Network contributes the Caryophyllales to the “World Flora Online” (WFO, http://worldfloraonline.org/). Caryophyllales conferences. – In the past decades, scientific meetings focusing on Caryophyllales were hosted by different colleagues: Leningrad (1975), Heidelberg (1992), Moscow (2012), Berlin (2015, Caryophyllales 2015), and in Mexico City (2018, Caryophyllales 2018). Dynamic generic checklist of Caryophyllales. — As a first result of collaborative efforts of the network, a taxonomic backbone at the family and genus levels was published in 2015 in print (Hernández-Ledesma & al. 2015) and online (http://caryophyllales.org/checklist). The checklist includes all currently accepted genus names in Caryophyllales, as well as nomenclatural references, type names and synonymy. The checklist is dynamically updated to incorporate newly published results and corresponding changes in classification. Further developments. — The generic backbone is gradually expanded to cover the species-level (including complete synonymy, nomenclatural references, distribution data, descriptions etc.). The vision is a dynamic monograph for all Caryophyllales taxa integrating the work of numerous specialists around the world. Species-level checklists are work in progress - the checklist for Cactaceae is already accessible (http://caryophyllales.org/cactaceae/), the Nepenthaceae serve as an example of a monographic treatment in progress (http://caryophyllales.org/nepenthaceae/).
Project
The Hylocereeae are a mainly central American-Mexican tribe of epiphytic, hemiepiphytic and climbing cacti. They are well known and popular due to their spectacular nocturnal flowers (the "Queen of the Night") and have some importance as crop plants grown for their edible fruits, known as pitahaya. The Hylocereeae are one of the last large Cactaceae tribes that have not been yet examined in detail phylogenetically. The aims of this project are therefore were to evaluate the delimitation of the Hylocereeae and to create a phylogenetic framework for the genera based on plastid DNA sequences.