The case:  2005: No production Continued sampling  2006: Detected plants expressing transgene - demonstrated pollen transfer and seed dispersal (Reichman.

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Presentation transcript:

The case:  2005: No production Continued sampling  2006: Detected plants expressing transgene - demonstrated pollen transfer and seed dispersal (Reichman et al Mol. Ecology 15: ) Gene flow documented via using TraitChek, PCR, and sequencing  2007: Issue settled with civil penalty  2011: Transgenic plants in central and southeastern Oregon  2012: Transgenic plants in Oregon and Idaho  2013, 2014, ……monitoring and reporting

What is and what is not a transgenic plant?

“Our work suggests that cisgenic insertion of additional copies of native genes involved in growth regulation may provide tools to help modify plant architecture, expand the genetic variance in plant architecture available to breeders and accelerate transfer of alleles between difficult-to-cross species.”

Transcription Activator Like Effector Nucleases - TALENs Use TALEs to bind to a particular DNA region Double Strand Break Non-Homologous End Joining repair – error can alter function Introduce new sequence – Exogenous DNS – Homology Directed Repair

Clustered Regularly Interspaced Short Palindromic Repeats (CRISPRs) RNA guided nucleases with custom specificities for genome editing Modify endogenous genes rapidly and efficiently Approved technology?

Genome Editing Examples