This week?s Bio seminar Friday, Feb. 13, DV2082?at 12pm Jarturo Alvarez-Buylla,?University of California. Embryonic origins of adult neural stem cells 1 Lecture 12: From water to land Ancient plants From water to land but how? Putting life cycles into a phylogenetic context Was water always that important? 2 When did you have popcorn the last time? 3 Corn is ancient Evolved from Teosinte 4 http://hila.webcentre.ca/research/teosinte/ Pop corn is ancient too 5 Huaca Prieta, Peru Grobman, A. & Bonavia, D. 2012. Preceramic maize from Paredones and Huaca Prieta, Peru. Proceedings of the National Academy of Sciences, It all began with green algae 6 http://www.astrobio.net/images/galleryimages_images/Gallery_Image_7263.jpg Green algae 725 mya