| Title: | Fitness consequences of altering floral circadian oscillations for Nicotiana attenuata |
| Author(s): | Yon F; Kessler D; Joo Y; Cortes Llorca L; Kim SG; Baldwin IT; |
| Address: | "Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knoll-Strasse 8, D-07745 Jena, Germany. Center for Genome Engineering, Institute for Basic Science, Yuseong-gu, 34047 Daejeon, South Korea" |
| ISSN/ISBN: | 1744-7909 (Electronic) 1672-9072 (Linking) |
| Abstract: | "Ecological interactions between flowers and pollinators are all about timing. Flower opening/closing and scent emissions are largely synchronized with pollinator activity, and a circadian clock regulates these rhythms. However, whether the circadian clock increases a plant's reproductive success by regulating these floral rhythms remains untested. Flowers of Nicotiana attenuata, a wild tobacco, diurnally and rhythmically open, emit scent and move vertically through a 140 degrees arc to interact with nocturnal hawkmoths. We tethered flowers to evaluate the importance of flower positions for Manduca sexta-mediated pollinations; flower position dramatically influenced pollination. We examined the pollination success of phase-shifted flowers, silenced in circadian clock genes, NaZTL, NaLHY, and NaTOC1, by RNAi. Circadian rhythms in N. attenuata flowers are responsible for altered seed set from outcrossed pollen" |
| Keywords: | Circadian Rhythm/physiology Flowers/*physiology Pollen/physiology Pollination/physiology Tobacco/*physiology; |
| Notes: | "MedlineYon, Felipe Kessler, Danny Joo, Youngsung Cortes Llorca, Lucas Kim, Sang-Gyu Baldwin, Ian T eng 293926/ERC_/European Research Council/International China (Republic : 1949- ) 2016/12/14 J Integr Plant Biol. 2017 Mar; 59(3):180-189. doi: 10.1111/jipb.12511. Epub 2017 Feb 17" |
