Biology Commons^™

Larval Chondrocranial And Internal Oral Morphology Of The Neotropical Treefrog Boana Crepitans (Wied-Neuwied, 1824; Amphibia, Anura, Hylidae), Marianna Isabella Rosa Rodrigues De Oliveira, Luiz Norberto Weber, Johnny Sousa Ferreira, Anna Evelin Coimbra Liborio, André Masahide Guimaraes Takazone, Rafael O. De Sá

Biology Faculty Publications

We describe the internal oral morphology and chondrocranial anatomy for Boana crepitans tadpoles, and compare them with available descriptions for other species in the subfamily Cophomantinae. Among species of the Boana faber group, the chondrocranial anatomy has been reported only for one species internal oral morphology and cranial anatomy are similar to other described species of Boana and Cophomantinae. B. crepitans lacks unique features in the oral cavity and chondrocranium that would distinguish it from other congeneric species. We identify six characters from the internal oral anatomy of tadpoles unique for Cophomantinae. In addition, Boana has infralabial papillae projections, buccal …

Research Towards Understanding Hox Regulation By Cdx, Joshua M. Fisher

Honors Theses

In this project, we aim to functionally test the contribution that individual Cdx binding sites have in hox gene regulation. We will achieve this by individually blocking Cdx binding sites using CRISPR/dCas9 in the zebrafish and then analyzing changes in the time, distribution, and levels of hox gene transcription.

We will focus our analysis in only one of the seven zebrafish hox clusters, the hoxca cluster. We are focusing on the hoxca gene cluster because it has lost the least number of genes relative to other clusters and is involved in specifying the axial identity of cells in …

Investigation Of The Effects Of Curcumin On Woodsmoke-Induced Inflammation, Melissa Lewis

Honors Theses

Inflammatory diseases caused by biomass smoke exposure and indoor air pollution affect millions of people worldwide. These diseases can be caused by the burning of biomass (plastic, wood, rubber, tobacco, etc.) for light or heat. Acrolein is a common indoor and outdoor pollutant from tobacco smoke or organic combustion. Wood smoke is hypothesized to cause inflammation since it contains high concentrations of particulate matter and gaseous compounds and are similar in size to other well-known damaging particles. Natural remedies, like curcumin, are hypothesized to be a natural remedy for combating inflammation. The goal of this research was to investigate the …

The Effect Of Color Morph On Behavior Interactions In Red-Backed Salamanders (Plethodon Cinereus), Taylor M. Aliferis

Honors Theses

Studies in behavioral ecology provide critical information regarding a species’ territoriality, predator-prey interactions, and reproduction. Red-backed salamanders (Plethodon cinereus) are a polymorphic terrestrial amphibian whose behavioral interactions have long been studied to provide insights on the processes that structure salamander populations, which are often cryptic and difficult to study. However, research regarding the effect of coloration on these interactions is more limited, but potentially extremely important for studies of population dynamics and speciation in terrestrial salamanders. In this study, aggressive and submissive behaviors of adult male red-backed salamanders in five different color morph treatment pairings were observed to …

Characterization Of A Myo19 Knockdown Phenotype In A Cultured Neuron-Like Cell Line, Adelaide Masterson, Bridget Wolters

Arts & Sciences Student Symposium

We will be characterizing and analyzing properties related to neurite outgrowth, including neurite length & mitochondrial dynamics, in order to understand how MYO19 activity and mitochondrial distribution play a role in neurite development. We aim to observe if loss of MYO19 expression alters these properties, and if reintroducing specific aspects of MYO19 function can “rescue” any observed defects in cells where normal MYO19 expression has been lost. Our studies and hypothesis are based on the previous work of Dr. Quintero and his students, where they have observed differences in the behavior of neuron-like CAD cells when MYO19 expression has been …

Larval Anatomy Of Monotypic Painted Ant Nest Frogs Lithodytes Lineatus Reveals Putative Homoplasies With The Leptodactylus Pentadactylus Group (Anura: Leptodactylidae), Filipe A.C Do Nascimento, Rafael O. De Sá, Paulo C. De A. Garcia

Biology Faculty Publications

The morphological diversity of anuran larvae made them an important source of information for evolutionary and systematic studies. For the monotypic frog genus Lithodytes, which has an interesting taxonomic history, including its past synonymizing with Adenomera and its placement as a subgenus of Leptodactylus, the information provided from its larvae can help to understand its systematics interrelationships and also provide insights about its evolutionary trajectories. Herein, we provide a detailed description of the larval morphology of Lithodytes lineatus, including novel data of internal morphology (buccopharyngeal cavity and skeleton), and discuss some morphological and evolutionary aspects in relation …