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National Institutes of Natural Sciences

National Institute for Basic Biology

International Cooperation

NIBB Conferences - Conference

The 64th NIBB Conference "Evolution of Seasonal Timers"

Organizers Andrew Loudon (University of Manchester, UK)
David Burt (The Roslin Institute, UK)
David Hazlerigg (UiT – The Arctic University of Norway, Norway)
Takashi Yoshimura (National Institute for Basic Biology, Japan)
Venue Okazaki Conference Center, Okazaki, Japan
Date Apr. 22 - 24, 2016
Link Official Website (http://www.nibb.ac.jp/conf64/)
Poster The 64th NIBB Conference

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    Until now how animals recognize and adapt to seasonal changes in the environment has remained a mystery that has long fascinated human beings. In addition, the impact of sudden climate change caused by global warming etc. on the ecosystem is also a concern, and societal interest in this mystery is great.

     With recent research understanding of the mechanisms by which plants and animals perceive seasons has progressed, and both the universality and diversity of the seasonal sensing mechanisms of living organisms has come to light. With this background, the 64th NIBB Conference entitled “Evolution of seasonal timers” was held with the aim of promoting in-depth understanding of the design principles and evolution of the seasonal sensing mechanisms of living things.

     Although the keyword of the conference was "season", topics ranged from “mathematical analysis of the flowering of wild plants in the field”, “mechanisms of migratory behavior and spawning activity of eels”, “hibernation of squirrels”, and “chromatin remodeling and chemical genetics”. Leading researchers in their respective fields came together from across the world. The approximately 100 participants made for an ideal size for the meeting, and facilitated deep discussions in face-to-face settings for every participant throughout the three day period. Members who would normally never have a chance to meet face to face at a usual academy gathered together for an opportunity to deeply consider seasonal sensation from an interdisciplinary point of view, and we were able to obtain a lot of inspiration toward future research. We received kind acknowledgements such as “the most stimulating symposium I ever had” and “an unforgettable symposium”

     I’d like to express my gratitude to the members of the Office of International Cooperation and the Division of Seasonal Biology for the efforts they made to the conference, and I very much appreciate the support from National Institute for Basic Biology and Daiko foundation, and the Human Frontier Science Program.

Takashi Yoshimura (On behalf of the organizers)
 

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Program

 

 April 22 (Fri) at the Okazaki Conference Center (OCC) 
08:45 - 09:15 Registration
   
Opening Remarks  
09:15 - 09:30 Masayuki Yamamoto (Director General, National Institute for Basic Biology, Japan)
  Andrew Loudon (University of Manchester, UK)
   
Plenary lecture 1  
Chair: Norihito Nakamichi  
09:30 - 10:30 "Natural Variation in Plant Circadian Clocks"
  C. Robertson McClung (Dartmouth College, USA)
   
10:30 - 10:45 Coffee Break
   
Session 1: The measurement of seasonal time in invertebrates
Chair: David Hazlerigg  
10:45 - 11:15 "Sea, Sun and Moon: Marine Models for the Study of Endogenous Timers"
  Kristin Tessmar-Raible (University of Vienna, Austria)
   
11:15 - 11:45 "Seasonal Time Measurement by the Circannual Clock in a Beetle"
  Hideharu Numata (Kyoto University, Japan)
   
11:45 - 12:15 "Neuroendocrine Control of Development Plasticity in Drosophila: Implication for Seasonal Adaptation in Insects"
  Ryusuke Niwa (University of Tsukuba, Japan)
   
12:15 - 12:30 Short Talk from Poster No. 1
  "Functional Connections among Neurons Involved in Photoperiodic Control of Diapause in the Blow Fly, Protophormia terraenovae"
  Sakiko Shiga (Osaka City University, Japan)
   
12:30 - 12:40 Group Photo
   
12:40 - 14:00 Lunch
   
Session 2: The measurement of seasonal time in a plant model
Chair: Takashi Yoshimura  
14:00 - 14:30 "Synthetic Molecules Changing Plant Circadian Clock"
  Norihito Nakamichi (Nagoya University, Japan)
   
14:30 - 15:00 "Photoperiodic Control of Flowering in Rice"
  Takeshi Izawa (National Institute of Agrobiological Sciences, Japan)
   
15:00 - 15:30 "Molecular Phenology in Plants: Seasonal Responses of Gene Expression under Natural Environments"
  Hiroshi Kudoh (Kyoto University, Japan)
   
15:30 - 16:00 "Flowering Phenology under Seasonal and Aseasonal Environments: Gene Expression Assessment in the Temperate and Tropical Zones"
  Akiko Satake (Kyushu University, Japan)
   
16:00 - 16:15 Short Talk from Poster No. 5
  "The Modulation of Circadian Periods is Linked to a Local Adaptation of Critical Day-lengths for Flowering in a Japanese Short-day Duckweed"
  Tomoaki Muranaka (Nagoya University, Japan)
   
Data-blitz and Poster (Odd numbers)
16:15 - 18:00 Data-blitz and Poster (Odd numbers)   Poster Title (PDF 63KB)
   
18:30 - 20:00 Mixer
   
 April 23 (Sat) at OCC   
Plenary lecture 2  
Chair: David Hazlerigg  
09:00 - 10:00 "Revisiting the Bunning Hypothesis"
  Michael Menaker (University of Virginia, USA)
   
10:00 - 10:15 Coffee Break
   
Session 3: The measurement of seasonal time in non-mammalian models I
Chair: Nicholas Foulkes  
10:15 - 10:45 "Measuring Light and Time in Fish"
  Nicholas S. Foulkes (Karlsruhe Institute of Technology, Germany)
   
10:45 - 11:15 "Evolution of Seasonal Timekeeping in Salmonids"
  David Hazlerigg (UiT – The Arctic University of Norway, Norway)
   
11:15 - 11:45 "Genetic Mechanisms Underlying Variation in Seasonal Reproduction between Stickleback Ecotypes"
  Jun Kitano (National Institute of Genetics, Japan)
   
11:45 - 12:00 Short Talk from Poster No. 8
  "Expression of Photosignal Transduction-related Genes in the Saccus Vasculosus of Fishes"
  Masayuki Iigo (Utsunomiya University, Japan)
   
12:00 - 13:30 Lunch
   
Session 4: The measurement of seasonal time in non-mammalian models II
Chair: David Burt  
13:30 - 14:00 "Dual Photoperiodic Control Hypothesis of Avian Breeding Cycles"
  Alistair Dawson (Centre for Ecology & Hydrology, UK)
   
14:00 - 14:30 "Binary Switching of Calendar Cells"
  Andrew Loudon (University of Manchester, UK)
   
14:30 - 15:00 "Transcriptional and Epigenetic Regulation of Seasonal Timing"
  David W. Burt (The Roslin Institute/University of Edinburgh, UK)
   
15:00 - 15:15 Coffee Break
   
Plenary lecture 3  
Chair: Masayuki Iigo  
15:15 - 16:15 "Evolution of Seasonality in Migration of Freshwater eels"
  Katsumi Tsukamoto (Nihon University, Japan)
   
Data-blitz and Poster (Even numbers)
16:15 - 18:00 Data-blitz and Poster (Even numbers)   Poster Title (PDF 63KB)
   
 April 24 (Sun) at OCC   
Plenary lecture 4  
Chair: Andrew Loudon  
09:00 - 10:00 "Circannual Rhythms of Reproduction and Heterothermy in Hibernating Ground Squirrels"
  Brian M. Barnes (University of Alaska, USA)
   
10:00 - 10:15 Coffee Break
   
Session 5: The measurement of seasonal time in a mammalian model
Chair: Valérie Simonneaux  
10:15 - 10:45 "Circadian Clock Neurons in the SCN Encode Seasonal Time"
  Jihwan Myung and Toru Takumi (RIKEN Brain Science Institute, Japan)
   
10:45 - 11:15 "RFRP neurons, a Hypothalamic Doorway for Seasonal Cues"
  Valérie Simonneaux (Institut des Neurosciences Cellulaires et Intégratives, France)
   
11:15 - 11:45 "Towards Understanding the Mechanism of Seasonal Time Measurement:
an Interdisciplinary Approach
"
  Takashi Yoshimura (National Institute for Basic Biology, Japan)
   
11:45 - 12:00 Short Talk from Poster No. 19
  "Orchestration of Hypothalamic Gene Expression in Natural Photoperiod over the Course of One Year in The Siberian Hamster"
  Perry Barrett (Rowett Institute for Nutrition and Health, UK)
   
12:00 - 12:15 Short Talk from Poster No. 20
  "Evidence for Systemic Remodeling prior to Hibernation in the Syrian Hamster  (Mesocricetus auratus)"
  Yoshifumi Yamaguchi (The University of Tokyo, Japan)
   
Closing Remarks  
12:15 Takashi Yoshimura (National Institute for Basic Biology, Japan)

 

Conference