A5073243893- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Genetic diversity and population structure
- Microbial Community Ecology and Physiology
- Protist diversity and phylogeny
- Coastal wetland ecosystem dynamics
- Diatoms and Algae Research
- Echinoderm biology and ecology
- Bryophyte Studies and Records
- Environmental DNA in Biodiversity Studies
- Genomics and Phylogenetic Studies
Ohio University
2023-2025
University of Virginia's College at Wise
2018
Abstract Temporal population genetic studies have investigated evolutionary processes, but few characterized reproductive system variation. Yet, temporal sampling may improve our understanding of evolution through the assessment relative rates selfing, outcrossing, and clonality. In this study, we focused on monoicous, haploid‐diploid freshwater red alga Batrachospermum gelatinosum . This species has a perennial, microscopic diploid phase (chantransia) that produces an ephemeral, macroscopic...
Nitzschia palea is a common freshwater diatom used as bioindicator because of its tolerance polluted waterways. There also evidence it may be the tertiary endosymbiont within “dinotom” dinoflagellate Durinskia baltica . A putative strain N. was collected from pond on University Virginia's College at Wise campus and cultured. For initial identification, three markers were sequenced—nuclear 18S rDNA , chloroplast 23S rbc L. Morphological characteristics determined using light scanning electron...
Abstract The relative frequency of sexual versus asexual reproduction governs the distribution genetic diversity within and among populations. Most studies on consequences reproductive variation focus mating system (i.e., selfing vs. outcrossing) diploid‐dominant taxa (e.g., angiosperms), often ignoring reproduction. Although systems are hypothesized to be correlated with life‐cycle types, in rates remains poorly characterized across eukaryotes. This is particularly true three major lineages...
Abstract Life cycles with a prolonged haploid phase are thought to be correlated greater rates of selfing and asexual reproduction. In red algae, recent population genetic studies have aimed test this prediction but mostly focused on marine species separate sexes. We characterized the reproductive system obligately monoicous (i.e., hermaphroditic) freshwater alga Batrachospermum gelatinosum predicted that we would find signatures uniparental reproduction because its haploid‐diploid life...
The purpose of our study was to survey the freshwater planktonic protists within an inland natural preserve in Ridge and Valley physiographic province Appalachian Region using metabarcoding. Microbial eukaryotes are essential primary producers predators small ecosystems, yet they often overlooked due difficulty identification. This has been remedied, part, by cost reduction high throughput DNA sequencing growth barcode databases, making identification analysis microorganisms way...
Abstract The freshwater red alga Batrachospermum gelatinosum has a well‐documented distribution spanning historically glaciated and unglaciated eastern North America. This no known desiccation‐resistant propagule; thus, long‐distance dispersal events are likely rare. We predicted strong genetic structure among drainage basins admixture sites within basins. greater diversity at lower latitude because they serve as refugia the origin of northward, post‐Pleistocene range expansion. used 10...
Temporal population genetic studies have investigated evolutionary processes, but few characterized the temporal patterns of reproductive system variation. Yet, sampling may improve our understanding evolution through assessing relative rates selfing, outcrossing, and clonality. In this study, we focus on monoicous, haploid-diploid freshwater red alga Batrachospermum gelatinosum. This species has a perennial, microscopic diploid phase (chantransia) that produces an ephemeral, macroscopic...