Tom Viaene, VIB / Ghent University, Belgium
Eva Sundberg, VBSG, SLU
Lecture hall A281, Uppsala BioCentre, Ultuna
14:00 - 15:00
Functional evolution of PIN auxin transporters in the green lineage

The emergence and radiation of multicellular land plants was driven by a series of crucial innovations to their body plans. The directional transport of the phytohormone auxin by PIN auxin efflux carriers asymmetrically localized at the plasma membrane plays a critical role in establishing organ complexity and developmental flexibility of advanced land plants. The impact of PIN-mediated polar auxin transport on the development of non-seed plant species and green algal lineages is largely unknown. Using recently available sequence information from these plant species, we constructed a preliminary phylogenetic framework and tested several hypotheses on PIN protein evolution in vivo.