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Articles 1 - 3 of 3
Full-Text Articles in Genetics and Genomics
Evolutionary Genetics Of The Genus Zamia (Zamiaceae, Cycadales), Michael Calonje
Evolutionary Genetics Of The Genus Zamia (Zamiaceae, Cycadales), Michael Calonje
FIU Electronic Theses and Dissertations
The genus Zamia L. (Zamiaceae), consisting of 77 species, is the most species-rich and widely distributed cycad genus in the New World and is arguably the most morphologically and ecologically diverse genus in the Cycadales. We utilized a multilocus sequence dataset of 10 independent loci (9 single copy nuclear genes + 1 plastid) and extensive taxon sampling (over 90% of species) to infer phylogenetic relationships within Zamia. We infer a robust phylogenetic tree for the genus with a strong geographic delimitation of clades and find that four morphological characters typically used for diagnostic purposes in the genus exhibit a high …
The Genetics Of Olfactory And Visually Guided Attractive Behaviors In Aedes Aegypti Mosquito, Joshua Ibukun Raji
The Genetics Of Olfactory And Visually Guided Attractive Behaviors In Aedes Aegypti Mosquito, Joshua Ibukun Raji
FIU Electronic Theses and Dissertations
Mosquitoes detect their hosts and seek suitable resources crucial for survival by integrating chemosensory, thermal, and visual cues. The diversity of the cues involved in mosquito attractive behaviors has made the design of behavioral control strategies a challenge. The genetic basis of mosquito attractive behaviors can now be determined using genome editing. The contribution of the IR8a chemosensory pathway was uncovered by disrupting the IR8a co- receptor in Aedes aegypti using CRISPR/Cas9. Ir8a mutant female mosquitoes are not attracted to lactic acid, a behaviorally active component of human sweat, and lack odor-evoked responses to acidic volatiles. The loss of Ir8a …
Computational Analysis Of Large-Scale Trends And Dynamics In Eukaryotic Protein Family Evolution, Joseph Boehm Ahrens
Computational Analysis Of Large-Scale Trends And Dynamics In Eukaryotic Protein Family Evolution, Joseph Boehm Ahrens
FIU Electronic Theses and Dissertations
The myriad protein-coding genes found in present-day eukaryotes arose from a combination of speciation and gene duplication events, spanning more than one billion years of evolution. Notably, as these proteins evolved, the individual residues at each site in their amino acid sequences were replaced at markedly different rates. The relationship between protein structure, protein function, and site-specific rates of amino acid replacement is a topic of ongoing research. Additionally, there is much interest in the different evolutionary constraints imposed on sequences related by speciation (orthologs) versus sequences related by gene duplication (paralogs). A principal aim of this dissertation is to …