A5062045176- Plant Diversity and Evolution
- Botanical Research and Applications
- Plant and animal studies
- Botany, Ecology, and Taxonomy Studies
- Plant and Fungal Species Descriptions
- Ecology and Vegetation Dynamics Studies
- Plant Taxonomy and Phylogenetics
- Species Distribution and Climate Change
- Mediterranean and Iberian flora and fauna
- Fern and Epiphyte Biology
- Plant Virus Research Studies
- Plant tissue culture and regeneration
- Botany and Geology in Latin America and Caribbean
- Genomics and Phylogenetic Studies
- Genetic diversity and population structure
- Biological Control of Invasive Species
- Plant Surface Properties and Treatments
- Archaeology and Natural History
- Botany and Plant Ecology Studies
- Surface Modification and Superhydrophobicity
- Plant Disease Management Techniques
- Insect-Plant Interactions and Control
- Chromosomal and Genetic Variations
- Remote Sensing in Agriculture
- Animal and Plant Science Education
Florida Museum of Natural History
2016-2025
University of Florida
2016-2025
Desert Botanical Garden
2015-2023
Louisiana State University
2021
Arizona State University
2016
American Museum of Natural History
2015
Mississippi State University
2007-2008
The opuntias (nopales, prickly pears) are not only culturally, ecologically, economically, and medicinally important, but renowned for their taxonomic difficulty due to interspecific hybridization, polyploidy, morphological variability. Evolutionary relationships in these stem succulents have been insufficiently studied; thus, delimitation of Opuntia s.s. major subclades, as well the biogeographic history this enigmatic group, remain unresolved.We sequenced plastid intergenic spacers...
The Caryophyllales contain ~12,500 species and are known for their cosmopolitan distribution, convergence of trait evolution, extreme adaptations. Some relationships within the Caryophyllales, like those many large plant clades, remain unclear, phylogenetic studies often recover alternative hypotheses. We explore utility broad dense transcriptome sampling across order resolving evolutionary in Caryophyllales.We generated 84 transcriptomes combined these with 224 publicly available to perform...
This data paper presents a largely phylogeny-based online taxonomic backbone for the Cactaceae compiled from literature and sources using tools of EDIT Platform Cybertaxonomy. The will form contribution Caryophyllales Network World Flora Online serve as base further integration research results systematic community. final aim is to treat all effectively published scientific names in family. checklist includes 150 accepted genera, 1851 species, 91 hybrids, 746 infraspecific taxa (458...
Several plant lineages have evolved adaptations that allow survival in extreme and harsh environments including many families within the clade Portulacineae (Caryophyllales) such as Cactaceae, Didiereaceae, Montiaceae. Here, using newly generated transcriptomic data, we reconstructed phylogeny of examined potential correlates between molecular evolution adaptation to environments. Our phylogenetic results were largely congruent with previous analyses, but identified several early diverging...
Background In the past three decades, several studies have predominantly relied on a small sample of plastome to infer deep phylogenetic relationships in species-rich Melastomataceae. Here, we report first full plastid sequences this family, compare general features sampled plastomes other sequenced Myrtales, and survey for highly informative regions phylogenetics. Methods Genome skimming was performed 16 species spread across Plastomes were assembled, annotated compared eight plastids...
Recent availability of biodiversity data resources has enabled an unprecedented ability to estimate phylogenetically based metrics over broad scales. Such approaches elucidate ecological and evolutionary processes yielding a biota help guide conservation efforts. However, the choice appropriate phylogenetic underlying input uncertainties may affect interpretation. Here, we address how differences among source trees levels uncertainty these test existing hypotheses regarding geographic...
Chloroplast genomes are frequently treated as highly conserved among plants. However, many lineages of vascular plants have experienced structural rearrangements, including inversions and modifications to the size content genes. Cacti one these lineages, containing smallest plastome known for an obligately photosynthetic angiosperm, loss copy inverted repeat ndh gene suite, but only a few cacti from subfamily Cactoideae been characterized. Here, we investigated variation sequences across...
Premise Although numerous phylogenetic studies have been conducted in Cactaceae, whole‐plastome datasets not employed. We used the chollas to develop a plastome dataset for phylogeny reconstruction test species relationships, biogeography, clade age, and morphological evolution. Methods developed most known diploid members of (42 taxa) as well other Cylindropuntieae. Paired‐end, raw reads from genome skimming were reference‐mapped onto de novo assembly one cholla, Cylindropuntia bigelovii ,...
The invasion of Opuntioideae (cacti) was assessed at national, European, and global levels >14 years ago requires an urgent update. At present, only three species this subfamily are retained in the official list Swiss Federal Bureau Environment, two them being potentially invasive. About 550 new observations Opuntia Mill. Cylindropuntia (Engelm.) F. M. Knuth Cantons Valais, Vaud, Ticino have been entered Info Flora database. Our include revision previously registered stations, using a...
Abstract Premise Pteridophytes—vascular land plants that disperse by spores—are a powerful system for studying plant evolution, particularly with respect to the impact of abiotic factors on evolutionary trajectories through deep time. However, our ability use pteridophytes investigate such questions—or capitalize ecological and conservation‐related applications group—has been impaired relative isolation neo‐ paleobotanical research communities absence large‐scale biodiversity data sources....
In plants, polyploidy has been a significant evolutionary force on both recent and ancient time scales. 1950, Ownbey reported two newly formed Tragopogon allopolyploids in the northwestern United States. We have made first synthetic lines of T. mirus miscellus using dubius, porrifolius, pratensis as parents colchicine treatment F(1) hybrids. also produced allotetraploids between porrifolius pratensis, which are not known from nature. report crossability diploids, well inflorescence...
Ploidy has been well studied and used extensively in the genus Opuntia to determine species boundaries, detect evidence of hybridization, infer evolutionary patterns. We carried out chromosome counts for all members Humifusa clade ascertain whether geographic patterns are associated with differences ploidy. then related chromosomal data observed morphological variability, polyploid formation, consequently history clade. counted chromosomes 277 individuals from throughout ranges taxa included...
The Humifusa clade represents a recent radiation that originated in the late Pliocene or early Pleistocene and consists of about 10 species widely distributed North America from northern Mexico north to Ontario, Canada, south Florida Keys. This likely edaphically subxeric regions southwestern United States, there it later spread southeastern States ultimately produced small eastern States. Hybridization among evolutionarily divergent diploid (SE) (SW) subclades led origin many polyploid...
The family Cactaceae contains some of the most iconic species succulent plants, many which are valued for their cultural, economic, and ecological value. However, over 75% all cacti in decline, largely because effects global environmental changes (GEC), including climate change. Mitigating impacts GEC on will require a coordinated effort that combines conservation, research, education. Botanical gardens uniquely positioned to lead such an living collections programs focus conservation...
The amount and patterns of phylodiversity in a community are often used to draw inferences about the local historical factors affecting assembly can be prioritize communities locations for conservation. Because measures based on topology branch lengths phylogenetic trees, which affected by number diversity taxa tree, these analyses may sensitive changes taxon sampling tree reconstruction methods.To investigate effects methods phylodiversity, we investigated phylogenetics Ordway-Swisher...
Abstract To resolve more than 150 years of taxonomic confusion regarding the genus Mammillaria , molecular phylogeny Mammilloid clade, including genera Cochemiea Coryphantha Cumarinia Escobaria Neolloydia and Ortegocactus is reconstructed. We included broad sampling as well a regionally nearly complete taxon from Baja California region. Employing large single‐copy region plastid genome sequence data, we conducted maximum likelihood, parsimony Bayesian inference to reconstruct clade. The...
Premise The Caribbean islands are in the top five biodiversity hotspots on planet; however, biogeographic history of seasonally dry tropical forest (SDTF) there is poorly studied. Consolea consists nine species dioecious, hummingbird‐pollinated tree cacti endemic to West Indies, which form a conspicuous element SDTF. Several threatened by anthropogenic disturbance, disease, sea‐level rise, and invasive conservation concern. However, no comprehensive phylogeny yet exists for clade. Methods We...
Chromosome counts of members the Opuntieae were carried out to further our understanding ploidal levels, species boundaries, and evolutionary patterns within this group stem succulents, which has been well-studied cytologically is well known for hybridization polyploidy. Here we counted chromosomes 53 taxa in 4 genera (Consolea Lem., Nopalea Salm-Dyck, Opuntia Mill., Tacinga Britton & Rose). Thirty these are first a given taxon, six represent different ploidy taxon than reported previously....