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1997-1998 Research Project

The research project for the 1997/1998 WSSP focused on which wild plant gave rise to domesticated onions, or to put it another way, which species is the Mother-Of-All-Onions?   The goal of this project was to construct a phylogenetic tree of the onion family using DNA sequences generated from the chloroplasts of different onion species.  Students first used a DNA extraction kit to isolate genomic DNA from different onions they found in the store or in the wild.  They then used Polymerase Chain Reaction (PCR) to amplify a specific fragment of the onion chloroplast genome, cloned the fragment into a plasmid vector, and then transformed bacteria.  Students then purified the plasmid DNA and the region containing the onion gene fragment was sequenced.  These sequences were used to search for matches in the NCBI database using the BLASTN program and the information from these analyses allowed students to determine the location of their sample on the onion phylogenetic tree. 

In the course of these studies, students, teachers, and research scientists worked together, using the basic principles of molecular biology and genetic engineering to try to solve this research problem. By actually doing science, teachers and students gained an understanding of how science operates.

 
School City State Teacher(s) # of students
Colonial High School Woodbridge NJ Ms. Chantal Greffer 1
East Brunswick High School East Brunswick NJ Ms. Lynne McLaughlin 2
Elizabeth High School Elizabeth NJ Mr. Paul Sekuler 2
Hillsborough High School Hillsborough  NJ Mr. Robert Richard 2
Hunterdon Central  High School  Flemington NJ Dr. Susan Bonitz 2
JF Kennedy Memorial High School Woodbridge NJ Ms. Christine Anderson 1
Middletown High School South Middletown NJ Ms. Jennifer DePreker 2
Monmouth Regional High School Tinton Falls NJ Mr. Marc Natanagara 2
Red Bank Regional High School Little Silver NJ Ms. Cindy Atkins 1
Ridge High School Basking Ridge NJ Dr. Graham Cleaves
Ms. Nancy DeLoach
2
Rutgers Preparatory School  Somerset NJ Mr. David Mazsa 2
Science High School Newark NJ Mr. Victor Micah 2
Scotch Plains-Fanwood High School Scotch Plains NJ Ms. Lynda Rosenbaum 2
Watchung Hills Regional High School  Warren NJ Dr. Jeff Charney 2
Weehawken High School Weehawken NJ Mr. Tom Russo 2
West Essex Regional High School North Caldwell NJ Ms. Anne Sanelli 2
West Orange High School West Orange NJ Ms. Georgina Hatziemanuel 3
Total number of students       32