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Biology Commons

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Genetics and Genomics

Syracuse University

2010

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Full-Text Articles in Biology

A Molecular Basis For Craniofacial Laterality In Fishes, Karen Adams May 2010

A Molecular Basis For Craniofacial Laterality In Fishes, Karen Adams

Honors Capstone Projects - All

Laterality, the preference for development on one side of the body, is essential to the vertebrate body plan. While the vertebrate skeleton usually develops symmetrically, the processes underlying craniofacial laterality are not well understood. Using zebrafish and cichlids as model organisms, this study focuses on the molecular basis of symmetric craniofacial development. Fgf8, Retinoic Acid, and wnt11 were examined to analyze their involvement in regulating craniofacial laterality. Fgf8 is known to play a role in proper jaw development. Because fgf8 and Retinoic Acid interact to achieve laterality of the somites during somitogenesis, the role of Retinoic Acid in regulating …


Effect Of Inflorescence Size On Female Choice In Wild Radish, Raphanus Raphanistrum, Mylenne H. Salinas May 2010

Effect Of Inflorescence Size On Female Choice In Wild Radish, Raphanus Raphanistrum, Mylenne H. Salinas

Honors Capstone Projects - All

Sexual selection is an important mechanism of speciation. Originally studied in animals, researchers now argue that plants also exhibit characteristics that have been altered by sexual selection. Flower size, nectar production, pollen load, flower scent, and petal color are plant traits that participate in attracting mates through an intermediate pollinator. Although female choice has been demonstrated to enhance offspring quality in animals, a thorough analysis remains to be conducted in plants. In this study, I experimentally altered female choice by manipulating flower number on the hermaphroditic plant, Raphanus raphanistrum. Plants with smaller floral displays had reduced female choice; thus, allowing …