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Molecular biology of embryo development and germination

Reference	BBS/E/C/00004155
Principal Investigator / Supervisor	Professor Michael Holdsworth
Co-Investigators / Co-Supervisors	Dr Ajit Kurup
Institution	Rothamsted Research
Department	Rothamsted Research Department
Funding type	Research
Value (£)	828,980
Status	Completed
Type	Institute Project
Start date	01/04/1999
End date	31/03/2004
Duration	60 months

Abstract

For seed development to proceed the expression of a large number of genes is co-ordinately controlled in response to an array of developmental signals. These signals control embryogenesis, embryo maturation and germination and the transition from one phase of development to another. Of particular interest is the transition from the embryo maturation phase to the germination phase, and the separation of embryogenic and vegetative development. Our objective is to identify loci essential for germination, which would potentially be involved in the regulation of dormancy, desiccation tolerance, the initiation of vegetative development, and the mobilisation of energy reserves. To this end we have screened for germination mutants in a population of Arabidopsis seeds subjected to fast neutron bombardment. Eight mutant lines with a reduced germination potential were selected for further study. One line, mutated at the locus we have called COMATOSE (CTS), has been partially characterised. Genetic analysis of CTS indicates that the phenotype is only expressed in the embryo (Development 127: 3769-3767 (2000)).

Summary

unavailable

Committee	Closed Committee - Plant & Microbial Sciences (PMS)
Research Topics	X – not assigned to a current Research Topic
Research Priority	X – Research Priority information not available
Research Initiative	X - not in an Initiative
Funding Scheme	X – not Funded via a specific Funding Scheme

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