abstract = "Much laboratory work has been carried out to determine
the gene regulatory network (GRN) that results in plant
cells becoming flowers instead of leaves. However, this
also involves the spatial distribution of different
cell types, and poses the question of whether
alternative networks could produce the same set of
observed results. This issue has been addressed here
through a survey of the published intercellular
distribution of expressed regulatory genes and
techniques both developed and applied to Boolean
network models. This has uncovered a large number of
models which are compatible with the currently
available data. An exhaustive exploration had some
success but proved to be unfeasible due to the massive
number of alternative models, so genetic programming
algorithms have also been employed. This approach
allows exploration on the basis of both data-fitting
criteria and parsimony of the regulatory processes,
ruling out biologically unrealistic mechanisms. One of
the conclusions is that, despite the multiplicity of
acceptable models, an overall structure dominates, with
differences mostly in alternative fine-grained
regulatory interactions. The overall structure confirms
the known interactions, including some that were not
present in the training set, showing that current data
are sufficient to determine the overall structure of
the GRN. The model stresses the importance of relative
spatial location, through explicit references to this
aspect. This approach also provides a quantitative
indication of how likely some regulatory interactions
might be, and can be applied to the study of other
developmental transitions.",
notes = "'genetic programming algorithm has been employed to
find suitable [graphical GRN] models that explain all
observed data.'
also known as
\cite{oai:eprints.nottingham.ac.uk:46904}",