A5035084459- Plant Diversity and Evolution
- Plant and animal studies
- Botany, Ecology, and Taxonomy Studies
- Plant and Fungal Species Descriptions
- Fern and Epiphyte Biology
- Plant Parasitism and Resistance
- Ecology and Conservation Studies
- Vector-borne infectious diseases
- Plant Taxonomy and Phylogenetics
- T-cell and B-cell Immunology
- Flowering Plant Growth and Cultivation
- Botany and Plant Ecology Studies
- Mediterranean and Iberian flora and fauna
- Phytochemical Studies and Bioactivities
- Plant Pathogens and Fungal Diseases
- Microbial infections and disease research
- Toxoplasma gondii Research Studies
- Diabetes and associated disorders
- Botanical Research and Chemistry
- Virology and Viral Diseases
- Animal Virus Infections Studies
- Viral Infections and Vectors
- HIV Research and Treatment
- Phytochemistry and Biological Activities
- vaccines and immunoinformatics approaches
University of Arkansas at Monticello
2018-2024
University of Arkansas at Fayetteville
2023
University of Florida
2005-2020
Missouri Botanical Garden
2012-2020
Florida Museum of Natural History
2010-2019
New York Botanical Garden
2007-2017
Eastern Illinois University
2010
Washington State University
1998-2005
University of Utah
1994
The pantropical flowering plant family Annonaceae is the most species-rich of Magnoliales. Despite long-standing interest in systematics Annonaceae, no authoritative classification has yet been published light recent molecular phylogenetic analyses. Here, using largest, representative, dataset compiled on to date, we present, for first time, a robust family-wide tree and subsequent classification. We used supermatrix up eight plastid markers sequenced from 193 ingroup seven outgroup species....
A checklist of the grasses India is presented, as compiled from survey all available literature. Of twelve subfamilies grasses, ten are represented in India. Most have been examined by taxonomic experts for up-to-date nomenclature. The list includes 1506 species plus infraspecific taxa and presents information on types, synonyms, distribution within India, habit. Twelve new combinations made, viz. Arctopoa tibetica (Munro ex Stapf) Prob. var. aristulata (Stapf) E.A. Kellogg, comb. nov.;...
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...
Phylogenomic studies employing large numbers of genes, including those based on plastid genomes (plastomes), are becoming common. Nonphotosynthetic plants such as mycoheterotrophs (which rely root-associated fungi for essential nutrients, carbon) tend to have highly elevated rates plastome evolution, substantial genome reduction, or both. Mycoheterotroph plastomes therefore provide excellent test cases investigating how extreme conditions impact phylogenomic inference.We used parsimony and...
This report presents 2 cases in which puppy fatalities were associated with canine coronavirus (CCV), but no evidence of concurrent parvovirus (CPV-2) disease was observed. Case 1 involved a 7-week-old, male short-haired Chihuahua, had become lethargic 24 hours after purchase from pet store. Within 72 hours, the began to vomit, diarrhea, and admitted veterinary clinic, where it placed on IV fluids. The Cite® test negative. died within 12 admission submitted for diagnostic workup. Gross...
ABSTRACT Goats which have recovered from acute Anaplasma ovis infection remain seropositive, although infected erythrocytes cannot be detected by microscopic examination. Persistence of A. 17 to 21 months following experimental was demonstrated PCR detection the msp-5 gene. Quantitative analysis persistent rickettsemia over time showed that all levels were below limit and ranged a low 10 2 organisms/ml peaks 6 organisms/ml. Two patterns observed: first characterized cyclic fluctuations at 6-...
Abstract In humans and ruminants infected with Anaplasma, the major surface protein 2 (MSP2) is immunodominant. Numerous CD4+ T cell epitopes in hypervariable conserved regions of MSP2 contribute to this immunodominance. Antigenic variation occurs throughout acute persistent infection, sequentially emerging variants are thought be controlled by variant-specific Ab. This study tested hypothesis that challenge cattle Anaplasma marginale expressing which animals had been immunized, would...
Abstract We estimated phylogenetic relationships of Polygala inferred from nrITS, matK‐trnK , trnL intron, trnL‐trnF intergenic spacer, and rbcL sequence data, with emphasis on the New World clade. Our results did not support Old clades as sister groups in . Relationships among allied genera are being discussed, recovered compared to those current taxonomic delimitations. A biogeographic analysis using an ultrametric tree calibrated fossil Paleosecuridaca well a reconstruction ancestral area...
ABSTRACT Previously, our laboratory showed that Holstein cattle experimentally infected with Neospora caninum develop parasite-specific CD4 + cytotoxic T lymphocytes (CTL) lyse infected, autologous target cells through a perforin-granzyme pathway. To identify specific parasite antigens inducing bovine CTL and helper T-lymphocyte responses for vaccine development against neosporosis, the tachyzoite major surface proteins NcSAG1 NcSRS2 were targeted. In whole antigen-expanded lines,...
Background Currently, sufficient data exist to support the use of lactobacilli as candidates for development new oral targeted vaccines. To this end, we have previously shown that Lactobacillus gasseri expressing protective antigen (PA) component anthrax toxin genetically fused a dendritic cell (DC)-binding peptide (DCpep) induced efficacious humoral and T cell-mediated immune responses against Bacillus anthracis Sterne challenge. Methodology/Principal Finding In present study, investigated...
Abstract— The diverse and spectacular Hibisceae tribe comprises over 750 species. No studies, however, have broadly sampled across the dozens of genera in tribe, leading to uncertainty relationships among genera. non-monophyly genus Hibiscus is infamous challenging, whereas monophyly most other has yet be assessed, including large Pavonia. Here we significantly increase taxon sampling complete phylogenetic study date. We assess currently recognized include three thirteen newly sections...
Organisms in the genus Anaplasma express an immunodominant major surface protein 2 (MSP2), composed of a central hypervariable region (HVR) flanked by highly conserved regions. Throughout marginale infection, recombination results sequential appearance novel MSP2 variants and subsequent control rickettsemia immune response, leading to persistent infection. To determine whether evasion selection for variant organisms is associated with predominant response against HVR epitopes, T-cell linear...
Primers were developed for a portion of the ycf1 plastid gene in magnoliid taxa to investigate utility phylogenetic analyses. •Twenty-six species across six families within group (Canellales, Piperales, Laurales, and Magnoliales) sampled examine ability amplify ycf1. Additionally, 29 accessions Asimina Deeringothamnus (Annonaceae) sequenced assess levels variation compared matK trnL-F. •Results indicate that is easily amplified sequenced. In Annonaceae, provides more informative characters...
Abstract Caamembeca (Polygalaceae) is a genus of 13 species endemic to South America. The morphologically distinctive, e.g. supported by the putative morphologic synapomorphy paired glands in stipular position and on rachis. However, its monophyly has not been robustly tested as only four have included previous phylogenetic analyses. We present analysis 11 based nrITS, matK, trnL intron, trnL-trnF intergenic spacer. Relationships among are discussed, three new combinations made, amazonensis,...
Three enigmatic lineages of the Polygalaceae endemic to semi‐arid region Argentina were sampled within framework a molecular phylogenetic study its genera. The regions nrITS, matK , trnL intron, trnL‐trnF intergenic spacer, and rbcL analyzed, history some morphological characters was reconstructed in family. Results our analyses support recognition three monotypic genera historically treated Bredemeyera Polygala . A new genus, Rhamphopetalum combination, R. microphyllum are proposed together...
Abstract Antigen (Ag)-specific tolerization prevents type 1 diabetes (T1D) in non-obese diabetic (NOD) mice but proved less effective humans. Several auto-Ags are fundamental to disease development, suggesting T1D etiology is heterogeneous and may limit the effectiveness of Ag-specific therapies distinct endotypes. Colonization factor antigen I (CFA/I) fimbriae from Escherichia coli can inhibit autoimmune diseases murine models by inducing bystander tolerance. To test if Ag-independent...
An adult, 817 g, male, wild-caught banded Gila monster (Heloderma suspectum cinctum) was evaluated during a quarantine examination. The lizard obtained from the Arizona Game and Fish Department...
Based on phylogenetic and morphological evidence, the New World clade of Polygala L. is here recognized as genus Senega Spach, with three subgenera: typical Senega, Clinclinia (DC.) J. F. B. Pastore & Agust. Martinez, Monninopsis (S. Blake) R. Abbott. The subgenera are based previous infrageneric delimitations Chodat Blake. subgenus further divided into 16 sections, seven new sections designated here: Cleistogamae Abbott, Cruciatae Cuspidatae Pastore, Exiguae Revolutae Sanguineae...