Life Sciences Commons^™

The Evolving International Grassland Congress, L R. Humphreys

IGC Proceedings (1993-2023)

The locations of the International Grassland Congresses are listed. Analysis of the disciplinary themes of papers presented at five Congresses from 1937 to 1993 indicated a considerable homeostasis of content. The plant genetic base for grassland improvement received most attention, and this, together with plant physiology, plant ecology and soil science contributed 52 to 57 per cent of the subject matter at all five Congresses. Emergent topics are mentioned.

Multi-Type Branching Processes In Time-Varying Environments, Arash Jamshidpey

Biology and Medicine Through Mathematics Conference

No abstract provided.

Reaction-Diffusions System Simulated On Irregular Shapes And Surfaces Model Petal Spot Patterns In Monkeyflower Hybrids, Emily Simmons, Arielle M. Cooley, Joshua R. Puzey, Gregory D. Conradi Smith

Biology and Medicine Through Mathematics Conference

No abstract provided.

Exploring The Evolution Of Altruistic Punishment Using A Pde Model For Multilevel Selection, Daniel Cooney

Biology and Medicine Through Mathematics Conference

No abstract provided.

An Algorithm Of Aesthetics: The Mathematical Beauty Of Type-B Turing Pattern Development In Monkeyflowers, Clara A. Rinker, Emily S.G. Simmons, Joshua R. Puzey, Gregory D. Conradi Smith

Biology and Medicine Through Mathematics Conference

No abstract provided.

Decoding Immune Cell Navigation: Integrating Artificial Life Modeling With Tumor Microenvironment Dynamics, Sadegh Marzban

Biology and Medicine Through Mathematics Conference

No abstract provided.

Monotypic: Evolution And Adaptations Of The World's Most Distinctive Species, Emerson Harman, Amanda Almon

STEM Student Research Symposium Posters

"Monotypic: Evolution and Adaptations of the World’s Most Distinctive Species" is a BFA and Honors Capstone exhibition focused on introducing the public to the unique qualities of plants and animals that are the sole extant representative of their taxonomic family or higher classification. The exhibition is centered around the use of illustrative infographics to effectively deliver scientific information in an engaging manner to a wide audience. "Monotypic" explores the individual evolutionary adaptations that make each of these lineages so distinct from any of their living relatives while also touching on the interactions with their environments, relationships with other species, and …

Evolution In Segregating Genotype Mixtures Of Subterranean Clover, P.G. H. Nichols, P S. Cocks

IGC Proceedings (1993-2023)

A complex segregating mixture of subterranean clover (Trifolium subterraneum L.), was sown in 1978 at Nabawa and Mt Barker, two contrasting sites in Western Australia. Seed harvested from both sites from 1980-1994 was grown out at Shenton Park in 1995, along with seed of the original mixture. Populations diverged markedly for mean days to first flowering (DFF) within three seasons. No further trends in mean DFF occurred in plants derived from the next 14 years, although standard deviation declined significantly in plants from Mt Barker. Between season differences in mean DFF were correlated with estimated growing season length at …

Relationships Among Some Lolium And Festuca Species, G Charmet, F Balfourier, C Ravel

IGC Proceedings (1993-2023)

Molecular markers were used to investigate phylogenetic relationships among the 8 species of ryegrass (Lolium) and 11 species of fescue (Festuca). Nine sequences of non-coding chloroplastic or mitochondrial DNA were amplified through PCR, then digested by 20 restriction enzymes. Restriction sites data were used to draw an UPGMA tree. The main features are: 1) a clear-cut distinction between fine-leaved fescues (subg. Festuca) and broad-leaved fescues (subg. Schedonorus), which include the ryegrasses. 2) among the broad-leaved fescues, meadow fescue and tall fescue are very closely related, which may indicate that they share a common maternal …

Effect Of Stocking Rates On Plant Morphology In The Inner Mongolia Steppe Of China, Shiping Wang, Y. F. Wang, Z. Z. Chen, Bob Patton, Paul Nyren

IGC Proceedings (1993-2023)

During the long period of co-evolution with herbivores, range plants have adapted and developed resistant mechanisms in response to grazing (Briske, 1991). The objective of this experiment was to determine the morphological response of a number of the dominant plant species in the Inner Mongolia steppe of China to stocking rate.

Pde Model For Protocell Evolution And The Origin Of Chromosomes Via Multilevel Selection, Daniel B. Cooney, Fernando W. Rossine, Dylan H. Morris, Simon A. Levin

Biology and Medicine Through Mathematics Conference

No abstract provided.

Reaction-Diffusion System On Irregular Boundaries Reproduces Multiple Generations Of Petal Spot Patterns In Monkeyflower Hybrids, Emily Simmons

Biology and Medicine Through Mathematics Conference

No abstract provided.

De-Coupling Cell-Autonomous And Non-Cell-Autonomous Fitness Effects Allows Solution Of The Fokker-Planck Equation For The Evolution Of Interacting Populations, Steph J. Owen

Biology and Medicine Through Mathematics Conference

No abstract provided.

Genetically Explicit Model May Explain Multigenerational Control Of Emergent Turing Patterns In Hybrid Mimulus, Emily Simmons

Biology and Medicine Through Mathematics Conference

No abstract provided.

The Cofactor Specificity Of Nqo2, Shujun Dong

Undergraduate Student Research Internships Conference

NQO1 and NQO2 are closely related quinone reductases, which are FAD-linked enzymes that catalyze the 2-electron reduction of quinones. Whereas NQO1 has a well-defined role in cellular detoxification of quinones, NQO2’s function is less clear; it uses the conventional cofactors NADH/NADPH inefficiently compared to smaller nicotinamide cofactors, which are often present in low cellular amounts. This unique cofactor specificity suggests that NQO2 may have non-enzymatic functions, such as a role in intracellular signalling.

The goals of this research project include: 1) examining whether cofactor specificity is conserved in amniote NQO2 enzymes and 2) re-constructing ancient enzymes along the evolutionary pathway …

Statistical Inference Of Adaptation At Multiple Genomic Scales Using Supervised Classification And A Hidden Markov Model, Lauren A. Sugden

Biology and Medicine Through Mathematics Conference

No abstract provided.

The Ingredients Of Scientific Illiteracy, Marghuerite Crowell

Georgia College Student Research Events

As technology and medicine flourish in 21st century America through science, so does fear and opposition. This fear and opposition stems from the lack of an individuals understanding or education in the scientific field; simply called “Scientific Illiteracy”. Pressing issues involved with scientific illiteracy include vaccination, climate change, and evolution. Through extensive research in reading scientific papers, political pieces, statistics, and referencing other’s expertise, the culprits of this phenomenon prove to surpass just a lack of scientific education. Scientific Illiteracy forms from people’s religion, politics, core beliefs, and emotions. “Anti-vaxxers” lack of education of the chemical makeup of vaccines, prompts …

Phylogenetic Inference Of Multiscale Selection Pressures Using A Continuous State Birth-Death Process, Marco Hamins-Puertolas, David Rasmussen

Biology and Medicine Through Mathematics Conference

No abstract provided.

Topology And Dynamics Of Gene Regulatory Networks: A Meta-Analysis, Claus Kadelka

Biology and Medicine Through Mathematics Conference

No abstract provided.

Effects Of Evolution On Laboratory Sublines Of Myxococcus Xanthus Dk1622, Mackenzie Ryan, Francesca Scribano, Kimberly Murphy

Celebration of Learning

Microbes have served as effective models for studying evolution because of their ability to be easily replicated, stored, and manipulated. Myxococcus xanthus is a soil bacterium that has served as a model organism in many laboratories. The unique social and motile behaviors exhibited by this bacterium make it ideal for phenotypic assays. A wild-type strain of M. xanthus, DK1622, has been distributed to laboratories across the United States and therefore we now have DK1622 sublines. The genomes of a number of these sublines have been sequenced and their social and motile phenotypes have been analyzed. When nine of these sublines …

Modeling Stochastic Viral Evolution: A Multiscale Wright Fisher Model, Marco Hamins-Puertolas

Biology and Medicine Through Mathematics Conference

No abstract provided.

Geometry Of The Sample Frequency Spectrum And The Perils Of Demographic Inference, Zvi H. Rosen

Biology and Medicine Through Mathematics Conference

No abstract provided.