Headshot of Michael Petersen

Michael Petersen
Senior Scientist
University of Wisconsin-Madison
Crop Innovation Center
SPEAKER
CULTIVATION

Transformation and CRISPR Knockout of the CBDAS Gene in Type III Cannabis sativa L.
Meristem-based, genotype independent transformation systems have been established at the Wisconsin Crop Innovation Center (WCIC) for soybean (Glycine max L.), cow pea (Vigna unguiculata L.), dry bean (Phaseolus vulgaris L.), alfalfa (Medicago sativa L.), and Chickpea (Cicer arietinum L.) among others. DNA delivery in these systems is primarily via Agrobacterium tumefaciens, however a biolistics approach has also been demonstrated. Germline transformation with transmission of transgenes to T1 progeny have been confirmed empirically via RFP imaging, RUBY expression, GUS staining of T1 progeny and further validated via PCR assays. We have modified these methods to successfully engineer and edit Cannabis sativa, an otherwise recalcitrant species. Hundreds of independent T0 events have been produced along with their T1 progeny. Multiple genotypes have been engineered using this process at the WCIC and the methodology, results, and future direction will be discussed. Data will focus on a CRISPR knockout of the CBDAS gene in a Type III cannabis plant and its effects on chemotype, collaborations with key industry partners, and a path for potential new clients to use our technology to enable gene editing and engineering to alter traits of interest to them.
BIO
Michael Petersen obtained his BS in Bacteriology at the University of Wisconsin-Madison. With over 35 years of experience and 5 years as the Associate Director of the Wisconsin Crop Innovation Center (WCIC), Mike has become recognized as a leading researcher and mentor within the plant biotech space. Mike has led numerous innovative projects and built many winning teams within Monsanto (Bayer) before coming to WCIC. Mike’s expertise is in driving research projects from inception through pre-commercialization. His work in plant transformation and gene expression is a passion and has resulted in over 50 patents and key inventions for Monsanto (Bayer) and the UW-Madison. Recently Mike stepped back from his Associate Director role to focus part time on improving his recent patent around cannabis transformation and creating new traits for improved yield, fiber, cannabinoids, terpenes, and other key interests for the UW and our nation’s agricultural industry.

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ATTENDANCE IS LIMITED. THE OPPORTUNITIES ARE NOT.

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