Kunihiko KANEKO
The University of Tokyo
To demonstrate that a biological system is
nothing but a kind of universal classes in
open dynamical systems, the problems listed
in the Table have been studied, both theoretically
and experimentally. After presenting general
standpoint of our approach, and surveying
the current status, I will talk about theoretical
studies on development and evolution. Irreversible
loss of dynamic plasticity through the developmental
process is discussed in terms of dynamical
systems, while sympatric speciation as a
compliance with interaction-induced phenotype
differentiation is proposed.
Table
| construction of | experiment | theory | question |
| replicating system | replication in vitro from chemical reactions | dynamics with few number of molecules | origin of information; evolvebility |
| cell system | replicating liposome with internal reaction | recursive growth of autocatalytic reaction network | condition for recursive growth |
| multi-cellular system | interaction-induced differentiation of an ensemble of cells | isologous diversification by inter-intra dynamics | robustness & irrevrsibility in development |
| development | artificial construction of tissues | stem cell dynamics; pattern formation | origin of positional information |
| generation | germ-line from a cell ensemble | recursive colony by adhesion difference | origin of individuality |
| memory | memory \& learning in a cell ensemble | memory \& learning in dynamical systems | irrevrsibility in control |
| evolution | relevance of phenotypic differentiation | symbiotic sympatric speciation | fixation to symbols |