Program

Each oral paper has 15 min talk and 4 min question/discussion.
Your PC with VGA adapter is needed.
Each poster board measures 900 mm wide and 2000 mm high.

Friday July 26 2019

[Room#223, Lounge (2nd floor)]

13:00-17:00 Registration and poster set up

17:00-18:00 Poster view

18:00-20:00 Welcoming reception “Communications Biology Reception” with a sushi craftsman and foods/drink.

Saturday 27 July 2019

[Auditorium (4th floor)]

8:50-9:00 Opening: Local Organizing Committee, Volvox 2019

9:00-11:05 Diversity and Evolution - Chair: David R. Smith and Adrian Reyes-Prieto

9:00-9:05 Introduction: David R. Smith
9:05-9:25 7. Hisayoshi Nozaki, Ryo Matsuzaki, Benedicto Boniphace Kashindye, Charles Nyarongo Ezekiel, Masanobu Kawachi, Mitsuto Aibara and Masato Nikaido
Colonial volvocines from Lake Victoria, Tanzania
9:25-9:45 18. Wuttipong Mahakham, Nattaporn Sukseeta, Wipawan Jenjan, Kanyawee Haputon, Noppawan Nounjan and Hisayoshi Nozaki
Establishment of culture collection of volvocean algae from Northeast Thailand for biodiversity research, with note on their DNA barcode sequences
9:45-10:05 11. David R. Smith
Stranger things: chloroplast genome evolution in the Volvocales
10:05-10:25 5. Alexandra E. DeShaw, Francisco Figueroa-Martinez, Adrian Reyes-Prieto
DeShaw Loss of photosynthesis
Where are they now: plastids after adopting an alternative trophic lifestyle
10:25-10:45 14. Cecilio Valadez-Cano and Adrian Reyes-Prieto
Constraint-based analysis of the Chlamydomonas genome-scale metabolic reconstruction to investigate the loss of photosynthesis in free-living algae
10:45-11:05 24. Alexandra E. DeShaw, Thomas Pröschold, Maike Lorenz, Aurora Nedelcu, David R. Smith and Adrian Reyes-Prieto
The plastid genomes of Polytoma oviforme and Hyalogonium fusiforme: the loss of photosynthesis in Chlamydomonadales is a recurrent theme with many variations

11:05-12:30 Sex I - Chair: James Umen

11:05-11:10 Introduction: James Umen
11:10-11:30 10. Hiroko Kawai-Toyooka, Takashi Hamaji, Yoshiki Nishimura, Shin-ya Miyagishima, Takako Kato-Minoura, Hisayoshi Nozaki and Kawai-Tokooka
Sex pheromone-induced gametogenesis in anisogamous Eudorina
11:30-11:50 15. Kohei Takahashi, Shota Yamashita, Kayoko Yamamoto, Hiroko Kawai- Toyooka, Yuki Tsuchikane, Hiroyuki Sekimoto and Hisayoshi Nozaki
Three sexes in the anisogamous volvocine alga Pleodorina starrii
11:50-12:10 44. Kayoko Yamamoto, Takashi Hamaji, Hiroko Kawai-Toyooka, Hideki Noguchi, Yohei Minakuchi, Atsushi Toyoda and Hisayoshi Nozaki
Revealing mating type locus evolution based on comparative genomics of heterothallic and homothallic Volvox species
12:10-12:30 8. Sa Geng and James G. Umen
Discovery and characterization of a gene required for bipotential sexual differentiation of both male and female germ cells in Volvox carteri

12:30-13:30 Lunch

13:30-14:50 Sex II - Chair: Hiroyuki Sekimoto

13:30-13:50 23. Ryo Matsuzaki, Masanobu Kawachi, Hisayoshi Nozaki and Iwane Suzuki
Sexual reproduction in a snow alga, Chloromonas fukushimae (Volvocales, Chlorophyceae)
13:50-14:10 37. Pedram Samani, Katrin Schmidt, Charles R Lindsey, Frank Rosenzweig, Matthew Herron
Experimental Evolution of Anisogamy: An Inquiry into the Origins of the Sexes
14:10-14:30 4. Tomoyuki Takano and Hidetoshi Sakayama
First discovery of heterothallic sexuality in the genus Spirogyra using culture strains
14:30-14:50 27. Hiroyuki Sekimoto
The mating type determination in heterothallic strains of Closterium peracerosum-strigosum-littorale complex, a new model organism to study sexual reproduction in charophycean algae

14:50-15:55 Cell Function and Response - Chair: Takako Kato-Minoura

14:50-14:55 Introduction Takako Kato-Minoura
14:55-15:15 16. Ayat Alazab, Dwiyantari Widyaningrum, Yasuko Hayashi and Takeshi Ohama
Acutely induced burst ROS generation and cell death on board algal species by resin nanoparticle exposure
15:15-15:35 56. Noriko Ueki, Kresti Pecani, Daria Postavnaia, Michal Breker, Frederick Cross and Amy E. Ikui
Analysis of DNA Replication Mutants in the Green Alga Chlamydomonas reinhardtii
15:35-15:55 60. Takako Kato-Minoura, Yutaro Ogiwara, Ryosuke Suzuki, Mami Ishigaki, Yidong Tang and Ritsu Kamiya
Efficient isolation of Chlamydomonas tubulin mutants from strains lacking one each of its two α-tubulin and two β-tubulin genes

16:00-16:50 Special Lecture - Chair: Hiroko Kawai-Toyooka

0. Tetsuya Higashiyama
Evolution of Sexual Plant Reproduction and Its Key Molecules

[Room#223 (2nd floor)]

16:50-18:10: Poster session

18:30-20:30 Dinner
“Hibiya Matsumotoro” western style restaurant in the University of Tokyo Hongo campus

Sunday 28 July 2019

[Auditorium (4th floor)]

8:55-9:00 Remarks: Local Organizing Committee, Volvox 2019

9:00-11:05 Origin and Evolution of Cell Differentiation - Chair: Stephen M. Miller and Zach Grochau–Wright

9:00-9:05 Introduction: Stephen M. Miller
9:05-9:25 33. Rani M. Saggere and Aurora M. Nedelcu
From life-history trade-offs to somatic cell differentiation: Investigations into the adaptive and mechanistic role of Chlamydomonas RLS1
9:25-9:45 52. Dinah R Davison and Richard E Michod
Phenotype-first evolution of somatic cells in the volvocine green algae
9:45-10:05 30. Arthur Cousson, Zachariah Grochau-Wright, Dinah Davison, Régis Ferrière and Richard Michod
Investigating reg cluster expression in undifferentiated Eudorina sp. NIES-3984
10:05-10:25 32. Ravi N. Balasubramanian, Gavriel Y. Matt and James G. Umen
Analysis of Cell-Type-Specific Alternative Splicing in Volvox carteri
10:25-10:45 36. Jose Ortega-Escalante, James Williams, Antariksh Tyagi, Jundi Seah, Bradley J.S.C. Olson and Stephen M. Miller
Functional analysis of VARL genes rlsA and rlsD provides insights into the evolution of the somatic fate in Volvox carteri
10:45-11:05
38. Zachariah I. Grochau-Wright, Patrick J. Ferris, Lisa M. Nagy, Bradley J. S. C. Olson and Richard E. Michod
Exploring Genetic and Developmental Control Mechanisms of Cellular Differentiation in Volvox powersii

11:05-12:30 Multicellularity I - Chair: Stephanie S. M. H. Hoehn

11:05-11:10
Introduction: Stephanie S. M. H. Hoehn
11:10-11:30
6. Stephanie S.M.H. Hoehn, Pierre A. Haas, Kyriacos C. Leptos, Aurelia R. Honerkamp-Smith and Raymond E. Goldstein
Elastic properties of dynamic cellular monolayers
11:30-11:50
17. Shota Yamashita, Atsuki Suguchi, Kayoko Yamamoto, Ryo Matsuzaki, Masanobu Kawachi, Hideki Noguchi, Yohei Minakuchi, Atsushi Toyoda, Masafumi Hirono, Hiroyuki Sekimoto and Hisayoshi Nozaki
Unveiling the molecular bases involved in another evolution of multicellular complexity in Astrephomene gubernaculifera
11:50-12:10
39. Kimberly Chen, Frank Rosenzweig and Matthew Herron
Eco-Evo-Devo: origins of multicellularity in Chlamydomonas reinhardtii
12:10-12:30
42. Berenice Jimenez-Marin, Tara Marriage, Courtney Hill and Bradley JSC Olson
Cooption of genes for cell-cell adhesion results in multicellularity for colonial alga Gonium pectorale

12:30-13:30 Lunch

13:30-14:15 Multicellularity II - Chair: Sin-ya Miyagishima

13:30-13:35
Introduction: Sin-ya Miyagishima
13:35-13:55
43. Bradley JSC Olson, Antariksh Tyagi, Jessica B. Rakijas, Berenice Jimenez-Marin and Erik Hanschen
Reduced functional content in the Volvocales genomes during the evolution of multicellularity
13:55-14:15
51. Aurora M. Nedelcu
The evolution of multicellular complexity in the volvocine green algae

14:15-15:20 Motility - Chair: Ken-ichi Wakabayashi

14:15-14:20
Introduction: Ken-ichi Wakabayashi
14:20-14:40
20. Asuka Tanno, Yoko Arakaki, Noriko Ueki, Ryutaro Tokutsu, Jun Minagawa, Kenjiro Yoshimura, Hisayoshi Nozaki and Ken-ichi Wakabayashi
Photobehavior and photoprotection of Tetrabaena socialis
14:40-15:00
34. Noriyo Mitome, Kosaku Horinaga, Kazumo Wakabayashi, Hikaru Emoto, Airi Shintome, Kazutaka Fujita, Noriko Ueki, Ken-ichi Wakabayashi and Katsuya Shimabukuro
Direct Measurement of Swimming Force of Volvox Spheroids by Modified Atomic Force Microscopy
15:00-15:20
46. Akira Noga, Mao Horii and Masafumi Hirono
Bld10p/Cep135 determines the number of triplets in the centriole independently of the cartwheel

15:30-16:30
Award recognitions and round table

Refreshment and poster break up [Room#223]

18:30-21:00 Dinner
“ITAME Dining SURURI” Japanese style restaurant in the Tokyo Dome City Meets Port
[Outside the University of Tokyo, about 30 min on foot from the venue]

Monday 29 July 2019

Post-meeting excursion

Poster papers

Diversity and Evolution

22. Hani Susanti, Masaki Yoshida, Takeshi Nakayama, Takashi Nakada, Ryo Matsuzaki, Masanobu Kawachi and Makoto M Watanabe
Paludistella trianguloculus NIES-4318 gen. et sp. nov. (Volvocales, Chlorophyceae), the oleaginous green algae from acidic Wetland
57. Priscilla Cortez, Dinah R Davison and Richard E Michod
Changes in cellular survival in response to stress during the evolution of multicellularity
58. Atsuki Suguchi, Shota Yamashita, Ryo Matsuzaki, Shigekatsu Suzuki, Haruyo Yamaguchi, Masanobu Kawachi, Hideki Noguchi, Yohei Minakuchi, Atsushi Toyoda and Hisayoshi Nozaki
Toward molecular bases of photoheterotrophy in the colonial volvocine species Astrephomene gubernaculifera and Volvulina steinii
63. Hidetoshi Sakayama and Tomoaki Nishiyama
The genome and ecological evolution of Chara braunii (Charophyceae, Streptophyta)

Cell Function and Response

3. Naoe Ando, Yuko Mogi, Tetsuya Higashiyama and Yamato Yoshida
Intracellular Function of a Novel Organelle Division Protein in unicellular red alga Cyanidioschyzon merolae
28. Lin Wei Jong, Takayuki Fujiwara, Shunsuke Hirooka and Shin-ya Miyagishima
Relationship between threshold sizes for cell division and number of cell divisions in multiple fission cell cycle of cyanidialean red algae
62. Keron R. Kinara-Williams and Ichiro Nishii
Exploring nuclear transformation of Volvox carteri by electroporation

Motility

31. Fumio Takahashi, Sota Shirakabe, Miki Iwata, Hisayoshi Nozaki and Masahiro Kasahara
Comparative analysis of phototaxis and photophobic responses in Volvox kirkiorum from Lake Biwa and paddy field
45. Mikito Owa, Yuki Nakazawa, Toshiyuki Oda, Haru-aki Yanagisawa, Akira Noga, Takashi Yamano, Hiro Iguchi, Hideya Fukuzawa, Masahide Kikkawa and Masafumi Hirono
Poc1 scaffolds the projections on the luminal side of centriolar microtubules and stabilizes inter-triplets and triplet-cartwheel connections
54. Megumi Yoshida, Akiko Yoshida, Shigetoshi Kameda, Kosuke Anzai, Atsuko Isu, Ken-ichi Wakabayashi and Kenjiro Yoshimura
Behavioral response to gravity in Chlamydomonas reinhardtii

Bioresource

55. Masanobu Kawachi, Hisayoshi Nozaki, Ryo Matsuzaki, Fumi Mori, Kosei Yumoto, Miwa Ishimoto, Mary-Helene Noel, Mayumi Sato and Haruyo Yamaguchi
Activities of the NIES Microbial Culture Collection in Japan with introduction on the Volvocales species

Sex

66. Hisato Ikegaya
Detail observation of the conjugation in Spirogyra by Global-Local live Imaging Microscope system

Cell Differentiation

67. Anajose Reyes, Rose He, Stephan G. König, Adrian Reyes-Prieto and Aurora M. Nedelcu
Genetic and phenotypic characterization of three Volvox carteri somatic regenerator mutants