A5061054875- Bryophyte Studies and Records
- Botany and Plant Ecology Studies
- Lichen and fungal ecology
- Fern and Epiphyte Biology
- Fossil Insects in Amber
- Collembola Taxonomy and Ecology Studies
- Plant Diversity and Evolution
- Plant and Fungal Species Descriptions
- Plant and animal studies
- Botany, Ecology, and Taxonomy Studies
- Plant Taxonomy and Phylogenetics
- Species Distribution and Climate Change
- Paleontology and Stratigraphy of Fossils
- Protist diversity and phylogeny
- Mediterranean and Iberian flora and fauna
- Ecology and Vegetation Dynamics Studies
- Peatlands and Wetlands Ecology
- Marine and coastal plant biology
- Plant Ecology and Soil Science
- Geology and Paleoclimatology Research
- Plant Pathogens and Resistance
- Genetic diversity and population structure
- Polar Research and Ecology
- Forest Ecology and Biodiversity Studies
University of Koblenz and Landau
2023-2024
University of Bonn
2018-2023
Institute for Biodiversity
2018-2023
Botanische Staatssammlung München
2019
Ludwig-Maximilians-Universität München
2015-2018
Abstract Premise Bryophytes form a major component of terrestrial plant biomass, structuring ecological communities in all biomes. Our understanding the evolutionary history hornworts, liverworts, and mosses has been significantly reshaped by inferences from molecular data, which have highlighted extensive homoplasy various traits repeated bursts diversification. However, timing key events phylogeny, patterns, processes diversification across bryophytes remain unclear. Methods Using GoFlag...
The signatories of this letter request significant changes to the common practices in palaeontology.With our present, multi-authored comment, we aim argue why these suggestions will not lead improvement both practice and ethics palaeontological research but, conversely, hamper its further development.Although disagree with most contents SVP letter, appreciate initiative discuss scientific underlying ethics.Here, consider different aspects by Rayfield et al. ( 2020) which see weaknesses dangers.
Abstract Lepidolejeunea is a largely epiphytic, pantropical genus of leafy liverworts. While the phylogenetic position has been subject recent molecular investigations, relationships within this have little studied. We employed sequences two chloroplast regions (trnL–trnF, rbcL) and nuclear ribosomal ITS region from 32 accessions to reconstruct its phylogeny. Two Rectolejeunea were used as outgroup. Maximum parsimony likelihood analyses indicate that diversity underestimated by current...
Abstract The evolutionary history and classification of epiphyllous cryptogams are still poorly known. Leptolejeunea is a largely pantropical liverwort genus with about 25 species characterized by deeply bilobed underleaves, elliptic to narrowly obovate leaf lobes, the presence ocelli, vegetative reproduction cladia. Sequences three chloroplast regions ( rbc L, trn L‐F, psb A) nuclear ribosomal ITS region were obtained for 66 accessions six outgroup explore phylogeny, divergence times,...
Abstract Aim How disjunct distributions arise and why organisms differ in diversification patterns remain some of the most compelling fundamental questions biogeography. We carry out phylogeographical analyses pantropical liverwort genus Ceratolejeunea to identify its geographical origin dispersal routes by which it gained Neotropical‐African disjunction. Furthermore, we investigate whether there is structure on islands island diversity a result radiations or recurrent migration. Location...
Cambay amber originates from the warmest period of Eocene, which is also well known for appearance early angiosperm-dominated megathermal forests. The humid climate these forests may have triggered evolution epiphytic lineages bryophytes; however, Eocene fossils bryophytes are rare. Here, we present evidence lejeuneoid liverworts and pleurocarpous mosses in amber. preserved morphology moss fossil inconclusive a detailed taxonomic treatment. liverwort is, distinctive; its zig-zagged stems,...
With more than 1,000 species in some 70 genera, Lejeuneaceae represent the largest family of liverworts. Although much progress has been made recent years, supraspecific classification not yet satisfactorily solved. Maximum likelihood and Bayesian analyses a three marker dataset (nrITS, cp DNA rbcL trnL-trnF) derived from 85 accessions Lejeuneeae 13 outgroup revealed Pictolejeunea picta sister relationship to remainder Lejeuneeae, most speciose tribe Lejeuneaceae. Based on outcome...
Abstract. DNA-based divergence time estimates suggested major changes in the composition of epiphyte lineages liverworts during Cretaceous; however, evidence from fossil record is scarce. We present first Cretaceous predominantly epiphytic leafy liverwort genus Radula ca. 100 Myr old Burmese amber. The fossil's exquisite preservation allows insights into morphology early crown group representatives occurring gymnosperm-dominated forests. Ancestral character state reconstruction aligns with...
Selaginella (Selaginellales, Selaginellaceae) is the most speciose genus of lycophytes and, with approximately 750 recognized present-day species, also one largest genera vascular plants. However, evolutionary history this species richness remains largely unresolved. Recent research suggests that was diverse already in mid-Cretaceous and shows S. subg. Stachygynandrum dates back at least to incipient Angiosperm Terrestrial Revolution some 100 million years ago. Here, we describe 20 new...
Abstract Aim The processes that shaped the West Indian fern flora remain poorly understood. We attempt to investigate earlier biogeographical patterns described for region using genus Adiantum as model. These propose has (1) an essentially continental rather than insular character, having a rich representation of species occurring in tropical America; (2) Greater Antilles have higher diversity and endemism Lesser Antilles, (3) adaptive speciation been important process shaping Antilles....
Unlike other nuclear genes in eukaryotes, rDNA (5S and 35S loci) are present numerous copies per cell and, when stained, can therefore provide basic information about genome organization. In tracheophytes (vascular plants), they usually located on separate chromosomes, the so-called S-type An analysis of 1791 species land plants suggested that arrays might be ancestral plants, while linked (L-type) organization may derived. However, no outgroup only a handful ferns bryophytes were...