Objective
Gametes are produced in reduction division called meiosis, in which cells undergo one round of DNA replication followed by two successive chromosome segregations. Homologue chromosomes are segregated in first meiosis whereas sister chromatids are separated in second meiosis. Actual chromosome segregation is preceded by recombination and exchange of genetic material. In human, meiosis is associated with a surprisingly high incidence of errors, leading to numerical chromosomal aberrations, which are more prevalent in female gametes and seem to increase with maternal age. Oocyte aneuploidy has severe consequences including pregnancy loss, birth defects and mental retardation. It was shown that the cohesin complex, holding together sister chromatids, is vital for faithful chromosome segregation in meiosis as well as in mitosis. In meiosis, the cohesin complexes have to be removed sequentially from chromosomes. The enzyme separase, responsible for cohesin cleavage, is temporarily activated in both divisions, cleaving the arm cohesion in first and centromeric cohesion in the second division. Centromeric cohesion, essential for accurate segregation of sister chromatids, is protected by proteins called shugoshin or Sgo1/Sgo1 and phosphatase 2A (PP2A) against cleavage by separase. The errors in sequential removal of cohesin might play a key role in mechanism of age-related aneuploidy in oocytes. We would like to develop a system, which would allow us to study the changes of expression and distribution of molecules involved in removal or protection of cohesin complexes during mammalian meiosis. Our results will greatly aid understanding to the molecular mechanisms underlying changes in chromosome segregation related to age in mammalian meiosis.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences biological sciences genetics DNA
- medical and health sciences clinical medicine obstetrics
- natural sciences biological sciences genetics heredity
- natural sciences biological sciences genetics chromosomes
- natural sciences biological sciences biochemistry biomolecules proteins enzymes
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP7-PEOPLE-2007-2-2-ERG
See other projects for this call
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
277 21 LIBECHOV
Czechia
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.