Weed resistance is a complex problem with incredible ramifications for agricultural production. It also provides an outstanding opportunity to examine how resistance happens– is it continual development of new mutations, new mutations in the same genes, or is it simply spread of already resistant material? Genome sequencing and comparative genomics indicates that it is all of the above. A recent paper by Kreiner et al tells the story of Amaranth resistance and its origins, particularly with presence in Canadian agriculture.  Follow Julia on Twitter  @jmkreinz And here is Julia’s website # COLABRATalking Biotech is brought to you by Colabra – an R&D platform that brings your lab’s world-changing research together in one shared space. Learn more at https://www.colabra.app/# TALKING BIOTECHTwitter: https://twitter.com/talkingbiotechWebsite: https://www.colabra.app/podcasts/talking-biotech/Instagram: https://www.instagram.com/colabrahqThe Talking Biotech podcast is distinct from Dr. Kevin Folta's teaching and research roles at the University of Florida. The views expressed on the show are those of Dr. Folta and his guests, and do not reflect the opinions of the university or Colabra.