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Full-Text Articles in Genetics and Genomics
Epigenetics Of Host-Pathogen Interactions: The Effect Of Acetosyringone On Ti Plasmid Methylation Patterns In Agrobacterium Tumefaciens C58, Genevieve Roberts
Epigenetics Of Host-Pathogen Interactions: The Effect Of Acetosyringone On Ti Plasmid Methylation Patterns In Agrobacterium Tumefaciens C58, Genevieve Roberts
Honors Projects
The plant pathogen Agrobacterium tumefaciens C58 can transfer a portion of its tumor-inducing (Ti) plasmid to plant hosts in response to the plant wound signals, including Acetosyringone. The portion transferred is aptly titled Transfer DNA (T-DNA) which encode genes involved in tumor production and biosynthesis of a unique bacterial food source called opines that provide an advantage to the inducing Agrobacterium. The Ti plasmid contains a number of genes, including the virulence region that enables T-DNA transfer. Epigenetics investigates how chemical modifications to DNA that don’t alter sequence are used to control gene expression (for example, genes involved in pathogen …
Hybridization Dynamics Of A Newly Discovered Parrotfish Swarm In The Tropical Eastern Pacific, Robert Barron
Hybridization Dynamics Of A Newly Discovered Parrotfish Swarm In The Tropical Eastern Pacific, Robert Barron
Honors Projects
Hybrid zones and their dynamics are important in the understanding of the genetic basis of reproductive isolation and speciation. This study seeks to investigate the hybridization dynamics of a Scarus hybrid swarm within the Tropical Eastern Pacific (TEP) that includes four phenotypically distinct species: S. perrico, S. ghobban, S. rubroviolaceus, and S. compressus. Genetic and population structure analyses of four nuclear loci and a mitochondrial locus revealed that one of the four species, S. compressus, was the result of two different hybrid crosses: S. perrico ✕ S. rubroviolaceus and S. perrico ✕ S. ghobban. A …
Examining The Role Of Grp And Lik1 In Wall Associated Kinase (Wak) Perception Of Pectin In The Plant Cell Wall, Jack Ryan Mitchell
Examining The Role Of Grp And Lik1 In Wall Associated Kinase (Wak) Perception Of Pectin In The Plant Cell Wall, Jack Ryan Mitchell
Honors Projects
Wall associated kinases (WAKs) are cell membrane bound receptor kinases that bind pectin and pectin fragments (OGs).The binding of WAKs to pectin sends a growth signal required for cell elongation and plant development. WAKs bind OGs with higher affinity than native pectin and instead activate a stress response. Glycine rich proteins (GRPs) are secreted cell wall proteins of unknown function. Seven GRPs with 65% sequence similarity are coded on a 90kb locus of Arabidopsis chromosome 2. GRP3 and WAK1 have been shown to bind in vitro, but single null mutations have no discernible phenotype, suggesting that the GRPs are redundant. …