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The Stability Of Epigenetic Variants That Can Act As Loci Causing Phenotypic Change, Raul Faburrieta May 2024

The Stability Of Epigenetic Variants That Can Act As Loci Causing Phenotypic Change, Raul Faburrieta

Biology Theses

Epigenetic variations are a possible source of heritable phenotypic variation. In this study I focus on phenotypic alterations seen in epigenetic Recombinant Inbred Lines (epiRILs) of Arabidopsis thaliana. These epiRILs allow me to study the effects differentially methylated regions (DMRs) have on phenotypic variance. In a study performed in 2014 by Cortijo et al., they found that DMR’s affect flowering time and root length when grown under greenhouse conditions. In this study, I replicated the Cortijo et al. (2014) study, with some changes, to see whether the same significant eQTL regions are found. I found that, some of the eQTLs …


Ecological Niche Modeling Of Endemic Texas Crayfish Species Under Current Conditions, Sarah A. Burgett Apr 2024

Ecological Niche Modeling Of Endemic Texas Crayfish Species Under Current Conditions, Sarah A. Burgett

Biology Theses

Crayfish play many important roles in freshwater ecosystems such as ecosystem engineering, bioindicator, and food resource. Even though they are important to ecosystems, they are highly understudied. There has been previous work done on ecological niche modeling on Texas crayfish species, but this study takes it a step further by combining soil, climate, and hydrology variables to model the ecological niches of three endemic species: Procambarus texanus, Procambarus nueces, and Procambarus fayettei. Ecological niche models were created for the three species of interest using the program Maxent. I found that P. texanus and P. fayettei have indistinguishable …