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Articles 1 - 6 of 6
Full-Text Articles in Genetics and Genomics
Characterization Of Pathological Tau Mutants, Charles J. Mcdonald
Characterization Of Pathological Tau Mutants, Charles J. Mcdonald
Dissertations, Theses, and Capstone Projects
Tau is a protein expressed exclusively in glia and neurons in the central nervous system and implicated in several neurogenerative diseases called “tauopathies”. Among all the tauopathies, one third is characterized by the presence of genetic mutations leading to the synthesis of tau proteins with single amino acid substitutions at specific locations and affecting protein function. While most of the initial studies have emphasize the functional role of tau as modulator of the axonal cytoskeleton, it has recently been well accepted that tau is also an intrinsically disordered protein that tends to form membraneless organelles called coacervates, due to a …
Population Genomics, Ecology And Conservation Of Asterias Sea Stars In The North Atlantic, Melenia I. Giakoumis
Population Genomics, Ecology And Conservation Of Asterias Sea Stars In The North Atlantic, Melenia I. Giakoumis
Dissertations, Theses, and Capstone Projects
Uncovering how species respond to environmental change is a central question in biology (Ehrlén & Morris 2015; Habibullah et al. 2022). It is the key to elucidating the past, understanding the present and predicting the future of species’ population dynamics. This dissertation investigates the influence of environmental change on intertidal species’ distributions and genomics at several timescales, with implications for conservation.
Environmental changes have occurred throughout history, on a geological scale, and have shaped the global patterns of species’ distributions and population sizes. Biologists have long studied how geological history has shaped species distributions (Sanmartín 2012) in both terrestrial (Liu …
Illuminating The Drivers Of Genomic Diversification In Lamprologine Cichlids Of The Lower Congo River, Naoko P. Kurata
Illuminating The Drivers Of Genomic Diversification In Lamprologine Cichlids Of The Lower Congo River, Naoko P. Kurata
Dissertations, Theses, and Capstone Projects
Freshwater fishes are extraordinarily diverse, considering their available habitats represent a tiny proportion of the earth’s surface. Rivers connect heterogeneous habitats in a linear form and provide excellent simplified models to understand how aquatic biodiversity evolves. In particular, the lower Congo River (LCR) in west Central Africa consists of a dynamic hydroscape exhibiting extraordinary aquatic biodiversity, endemicity, and morphological and ecological specialization. This system is thus an excellent natural laboratory for understanding complex speciation and population diversification processes. In my research, I explore various drivers of diversification, and adaptive evolution in rheophilic lamprologine cichlids endemic to the LCR, including Lamprologus …
Validating A New In Vivo Model To Study Als, Izabela J. Cimachowska
Validating A New In Vivo Model To Study Als, Izabela J. Cimachowska
Student Theses and Dissertations
Buildup of oxidative stress and mitochondrial dysfunction are well known characteristics of both sporadic and hereditary amyotrophic lateral sclerosis (ALS). While both forms of the disease seem to arise from common cellular dysfunction, the genetic disease is studied to a much greater extent. Engineering novel animal models of the sporadic form of the disease is crucial for development of druggable targets to treat ALS and understand the underlying mechanisms. Interestingly, accumulation of oxidative stress by exacerbated emission of reactive oxygen species (ROS) from presynaptic mitochondria is a hallmark of both hereditary and sporadic ALS. Previous work by our laboratory showed …
American Eel (Anguilla Rostrata) And Other Fishes As Surveyed By Environmental Dna In The Bronx River And Hudson River Watershed, Sam C. Chin
Dissertations, Theses, and Capstone Projects
Mounting an effective response to the threats faced by freshwater fish may require expansions to aquatic biomonitoring in excess of what is feasible using the capture-based survey techniques currently relied upon by natural resource managers. Methods for analyzing environmental DNA (eDNA) are emerging as a minimally invasive and cost-effective approach for surveying fish and other organisms. By detecting taxon-specific DNA sequences recovered from environmental samples (e.g. water, sediment), eDNA methods are able to infer species presence from samples that can be collected rapidly with simple equipment. In many cases, eDNA detection rates of fish species have been shown to meet …
Effects Of The Otx2ecr2 Enhancer & Prox1 Overexpression In Murine Retina Development, Erick J. Subillaga
Effects Of The Otx2ecr2 Enhancer & Prox1 Overexpression In Murine Retina Development, Erick J. Subillaga
Dissertations and Theses
There is a large subset of retinal progenitor cells that upregulate the OTX2 gene in the developing retina of the mouse. OTX2 is a homeobox transcription factor important for the development of photoreceptors and bipolar cells. If OTX2 is knocked out, photoreceptors and bipolar cells fail to differentiate. In order for OTX2 to be activated in certain retinal populations, it requires the activity of an enhancer called OTX2ECR2. Past studies demonstrated that retinal progenitor cells that had activity of OTX2ECR2 turned into horizontal cells, which require OTX2 for cell genesis and survival, and photoreceptors which require OTX2 for cell …