A5001045520- Plant Diversity and Evolution
- Plant and Fungal Species Descriptions
- Plant and animal studies
- Botany, Ecology, and Taxonomy Studies
- Botany and Plant Ecology Studies
- Ecology and Vegetation Dynamics Studies
- Mycorrhizal Fungi and Plant Interactions
- Genetic diversity and population structure
- Genomics and Phylogenetic Studies
- Identification and Quantification in Food
- Lichen and fungal ecology
- Sesquiterpenes and Asteraceae Studies
- Yeasts and Rust Fungi Studies
- Fish biology, ecology, and behavior
- Plant Pathogens and Fungal Diseases
- Botanical Research and Chemistry
- Fish Biology and Ecology Studies
- Botanical Studies and Applications
- Evolution and Paleontology Studies
- Plant Taxonomy and Phylogenetics
- Bryophyte Studies and Records
- Mediterranean and Iberian flora and fauna
- Phytochemistry and Biological Activities
- Environmental DNA in Biodiversity Studies
- Fern and Epiphyte Biology
Uppsala University
2022-2025
University of Gothenburg
2009-2021
Swedish Museum of Natural History
2013-2017
University of California, Los Angeles
2013
Bangor University
2013
KU Leuven
2013
Australian National Herbarium
2013
Natural History Museum of Bern
2013
Museum für Naturkunde
2013
Humboldt-Universität zu Berlin
2013
The phylum Ascomycota is by far the largest group in fungal kingdom. Ecologically important mutualistic associations such as mycorrhizae and lichens have evolved this group, which are regarded key innovations that supported evolution of land plants. Only a few attempts been made to date origin lineages using molecular clock methods, primarily due lack satisfactory fossil calibration data. For reason we evaluated all oldest available ascomycete fossils from amber (Albian Miocene) chert...
The internal transcribed spacer (ITS) region of the nuclear ribosomal repeat unit holds a central position in pursuit taxonomic affiliation fungi recovered through environmental sampling. Newly generated fungal ITS sequences are typically compared against International Nucleotide Sequence Databases for species or genus name using sequence similarity software suite blast. Such searches not without complications however, and one them is presence chimeric entries among query reference...
Understanding factors driving diversity across biodiversity hotspots is critical for formulating conservation priorities in the face of ongoing and escalating environmental deterioration. While encompass a small fraction Earth's land surface, more than half world's plants two-thirds terrestrial vertebrate species are endemic to these hotspots. Tropical Southeast (SE) Asia displays extraordinary richness, encompassing four hotspots, though disentangling multiple potential drivers richness...
Biogeographical patterns and diversification processes in Andean Patagonian flora are not yet well understood. Calceolaria is a highly diversified genus of these areas, representing one the most specialized plant-pollinator systems because flowers produce nonvolatile oils, very unusual floral reward. Phylogenetic analyses with molecular (ITS matK) morphological characters from 103 species were conducted to examine relationships, understand biogeographic patterns, detect evolutionary...
Next-generation sequencing technology has increased the capacity to generate molecular data for plant biological research, including phylogenetics, and can potentially contribute resolving complex phylogenetic problems. The evolutionary history of Medicago L. (Leguminosae: Trifoliae) remains unresolved due incongruence between published phylogenies. Identification processes causing this genealogical is essential inference a correct species phylogeny genus requires that more data, preferably...
Abstract Aim Panbiogeographers suggest that the biome in New Caledonia is of vicariant origin, dating from Cretaceous – rather than being result repeated dispersal since c . 37 Ma, when area postulated to have re‐emerged after 15 million years submergence. Distributions plant family Sapotaceae were used as a model system test this, and elucidate probabilities ancestral areas, all phrased six hypotheses. Location Australasia Pacific. Methods We recently published dataset with extensive...
Abstract Generic limits within subfamily Chrysophylloideae (Sapotaceae) from Oceania and Southeast Asia are reconciled based on a molecular phylogeny. We analysed sequences of nuclear ribosomal DNA (ETS, ITS) the gene RPB2 with BEAST parsimony jackknifing, using sample 168 terminals. Eight morphological characters were traced condensed majority–rule consensus tree to identify diagnostic character combinations for genera. Accepted genera support Magodendron, Pichonia, Planchonella, Pycnandra,...
Reconstructing the biogeographic history of groups present in continuous arid landscapes is challenging due to difficulties defining discrete areas for analyses, and even more so when species largely overlap both terms geography habitat preference. In this study, we use a novel approach estimate ancestral small plant genus Centipeda. We apply diffusion by relaxed random walk where each sampled from its extant distribution on an empirical time-calibrated species-trees. Using previously...
Recent phylogenetic studies in Sapotaceae have demonstrated that many genera need to be redefined better correspond natural groups. The Neotropical genus Pradosia is believed monophyletic and includes 26 recognized species. Here we reconstruct the generic phylogeny by a species-tree approach using (∗)BEAST, 21 species (36 accessions), sequence data from three nuclear markers (ITS, ETS, RPB2), relaxed lognormal clock model, fossil calibration. We explore evolution of five selected...
With 149 currently recognized species, Hypostomus is one of the most species-rich catfish genera in world, widely distributed over Neotropical region. To clarify evolutionary history this genus, we reconstructed a comprehensive phylogeny based on four nuclear and two mitochondrial markers. A total 206 specimens collected from main rivers were included present study. Combining morphology Bayesian multispecies coalescent (MSC) approach, recovered 85 previously species plus 23 putative new...
Generic limits of Chrysophyllum and Pouteria (Chrysophylloideae, Sapotaceae) have been found to be untenable. We here search for natural lineages in Neotropical Chrysophylloideae by sampling 101 terminals molecular sequences nuclear ribosomal DNA (external internal transcribed spacer), the gene RPB2 17 morphological characters. Data were analysed with Bayesian inference parsimony jackknifing. Morphological traits finally optimized onto tree identify most coherent The resulting phylogenetic...
Abstract Aim To infer the biogeographical history of avian clade Paridae (tits and chickadees) using methods based on discrete, a priori defined, geographical areas method that uses actual species distributions relaxed random walk in Bayesian context. We compared their relative performances how different area codings influenced outcome discrete analyses. Location Holarctic, Indomalaya, Afrotropics. Methods The phylogeny was reconstructed inference time‐calibrated published substitution rates...
Abstract Classifications of the pantropical plant family Sapotaceae based solely on morphology have historically recognized between 125 and 53 genera. Phylogenetic analyses using molecular data repeatedly demonstrated that broad concepts two large genera belonging to subfamily Chrysophylloideae, Chrysophyllum Pouteria , are untenable their narrowed delimitations restricted them Neotropics. A recent phylogenetic study proposed further amendments by resurrecting Achrouteria Cornuella Lucuma...
Abstract Pottiaceae is the largest known moss family, with one of most complex taxonomies among bryophytes. The circumscription genera within challenging. Here, we elucidate relationships four related traditional Pottiaceae: Chionoloma , Oxystegus Pachyneuropsis and Pseudosymblepharis all sharing a taxonomic history. In order to resolve phylogenetic genera, phylogeny derived from nuclear ITS plastid markers atpB-rbcL trnG trnL-F inferred. Putative monophyly these investigated using maximum...
Abstract Phylogenetic relationships in the tribe Inuleae (Asteraceae, sunflower family) are elucidated based on a concatenated set of nuclear (ETS, ITS), and chloroplast data ( ndhF , trnL ‐ F trnH psbA ), analysed by Bayesian parsimony methods. Extensive sampling representatives from both subtribes Inuleae‐Inulinae Inuleae‐Plucheinae establish their reciprocal monophyly, result first‐ever resolved molecular phylogeny with new insights into morphological character distributions between...
Abstract Planchonella is the largest genus in subfamily Chrysophylloideae (Sapotaceae), believed to circumscribe about 110 species, occurring throughout tropical Asia, Australia, and Oceania, as well Seychelles Hawaii. Previous studies have confirmed monophyly of but also identified problems such species limits name‐bringing taxon P. obovata , paraphyly widespread chartacea confusion between large‐leaved often cultivated maclayana pomifera variable torricellensis . Species duclitan are...
Recognizing the need for practical guidance in implementing FAIR Data Principles, a collaborative effort involving over 50 contributors led to development of Lesson Plan Handbook. The handbook serves as framework assist trainers building effective data training programs within life sciences research organizations. Through series hackathons and sessions, lesson plans were created. cover key aspects practices, including generics, Findable data, Accessible Interoperable Reusable software,...
Abstract The genus Jovellana is the sister group to larger Calceolaria, together composing family Calceolariaceae. Four species are currently recognised, two in New Zealand (J. sinclairii, J. repens) and Chile punctata, violacea). distribution disjunct across Pacific Ocean has long been believed be a remnant of an ancient vicariance following breakup Gondwana. In this study we infer tree phylogeny using three chloroplast four nuclear DNA sequences. By exploring modes estimating stem crown...
Abstract The phylogeny of Rutaceae subfamily Aurantioideae has previously been estimated only using plastid and repetitive nuclear sequences. We added sequences two low copy loci to allow further diagnosis phenomena that may mislead phylogenetic inference. After testing for patterns expected under recombination, positive selection, hybridization, we excluded data sets or accordingly then inferred the species tree multispecies coalescent. reconstructed ancestral area parsimony...
Biogeography of Sideroxylon (Sapotoideae) and whether the satellite genera Argania Spiniluma merit recognition are revisited. The hypothesis an African origin with a subsequent migration to Central America via Europe North Atlantic landbridge is challenged. We analysed 58 accessions trnH-psbA ITS sequences in fossil-calibrated, relaxed lognormal clock model BEAST for phylogenetic biogeographic inference. spinosa (L.) Skeels from Morocco must be united Sideroxylon, whereas S. discolor...
Pycnandra (Sapotaceae), the largest endemic genus in New Caledonia, comprises 66 species classified six subgenera. We tested phylogenetic relationships and a proposed infrageneric classification by sampling 60 for sequences of nuclear ribosomal DNA (ETS, ITS, RPB2) plastid (trnH–psbA) nine morphological characters. Data were analysed with Bayesian inference, parsimony jackknifing lineage through time. recovered tree supporting recognition subgenera (Achradotypus, Leptostylis, Pycnandra,...
Abstract Direct Sanger sequencing of polymerase chain reaction (PCR)‐amplified nuclear genes leads to polymorphic sequences when allelic variation is present. To overcome this problem, most researchers subclone the PCR products separate alleles. An alternative directly sequence alleles using allele‐specific primers. We tested two methods enhance specificity primers for use in direct sequencing: short and amplification refractory mutation system (ARMS) technique. By shortening primer 15–13...
Oceanic islands originate from volcanism or tectonic activity without connections to continental landmasses, are colonized by organisms, and eventually vanish due erosion subsidence. Colonization of oceanic occurs through long-distance dispersals (LDDs) metapopulation vicariance, the latter resulting in lineages being older than they inhabit. If vicariance is valid, island ages cannot be reliably used provide maximum age constraints for molecular dating. We explore relationships between...