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In recent years a new field of study has arisen called
developmental biology. The term developmental biology is really a
new name for embryology; it is, however, used to denote the
molecular approach to the study of developing systems. In this book
we have tried wherever possible to blend the older information of
classical embryology and in particular organogeny with the newer
concepts of developmental biology. The original intention was to
cover all the tissues of the body in this book. However, it soon
became obvious that it was not possible to do this within one
volume. Therefore we decided to have two general chapters, one on
the basic concepts of cellular development and an other on the
ageing of cells (this being considered part of the normal growth
process). In addition to these two general chapters we have
included chapters on some of the major tissues. These were chosen
not just to illustrate the points made in the general chapters but
because there is enough information available on the development of
these tissues for the expert in that field to present a good,
readable account. It is hoped that at a later date when more
information is available, we will be able to extend this work,
probably as several volumes, and to include the other tissues of
the body which are not dealt with in this volume.
The techniques of molecular biology offer a powerful means of
investigating and controlling the genetic basis of mechanisms
operating in living organisms. The development of these techniques
in aquatic animals has now reached the stage where important
questions relating to growth, development and adaptation to the
environment can be addressed at the level of gene expression, and
the introduction and expression of novel genes achieved. This
volume presents some of the most exciting advances in this rapidly
expanding area, with contributions on the evolution of adaptation
to low temperature, adaptation to short-term fluctuations in
temperature and salinity, gene expression during growth and
development, myosin polymorphism and the generation of transgenic
fish. As such, it will be of interest to all those working in the
fields of marine and freshwater biology and also to those working
in aquaculture.
The techniques of molecular biology offer a powerful means of
investigating and controlling the genetic basis of mechanisms
operating in living organisms. The development of these techniques
in aquatic animals has now reached the stage where important
questions relating to growth, development and adaptation to the
environment can be addressed at the level of gene expression, and
the introduction and expression of novel genes achieved. This
volume presents some of the most exciting advances in this rapidly
expanding area, with contributions on the evolution of adaptation
to low temperature, adaptation to short-term fluctuations in
temperature and salinity, gene expression during growth and
development, myosin polymorphism and the generation of transgenic
fish. As such, it should be of interest to all those working in the
fields of marine and freshwater biology and also to those working
in aquaculture.
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