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Cleaning The Variable Mess: A Population Genomics Approach To Understanding The Evolutionary History Of A Complicated Plant Group, Claire Marino
Cleaning The Variable Mess: A Population Genomics Approach To Understanding The Evolutionary History Of A Complicated Plant Group, Claire Marino
Honors Theses
The Solanum dioicum clade is a group of Australian bush tomatoes consisting primarily of species native to Western Australia and the Northern Territory whose species delimitations tend to be quite unclear. Since David Symon’s monograph A Revision of the Genus Solanum in Australia was published in 1981, little additional progress has been made in clarifying these relationships. In this project, a population genomics approach was used to analyze the relationships and delimitations between three species within the S. dioicum clade: Solanum dioicum, S. carduiforme, and S. ossicruentum. The use of population genomics methods is advantageous to understanding …
Heading For A Breakdown: Assessing Evolution Through The Hybridization Of Two Sexual Systems, Diamanda A. Zizis
Heading For A Breakdown: Assessing Evolution Through The Hybridization Of Two Sexual Systems, Diamanda A. Zizis
Honors Theses
Hybridization is an important evolutionary pathway that has contributed to the world’s vast biodiversity. In plants, especially angiosperms, hybridization is known to be an important mechanism for speciation, phenotypic divergence, and changes in reproductive systems. Solanum species present an ideal system to investigate how hybridization between two different sexual systems impacts the reproductive and phenotypic biology of the hybrid progeny. Hybrid seeds were acquired from crosses between Australian Solanum species Solanum dioicum (dioecious) and S. ultraspinosum (andromonoecious) in order to track what happens when you cross two plants with different sexual systems. Vegetative and floral morphological measurements were conducted, and …