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Imaging Chromosome Separation in Mouse Oocytes by Responsive 3D Confocal Timelapse Microscopy
Simon I R Lane1, Stephen Crouch2, Keith T Jones3
1Centre for Biological Sciences, Faculty and Natural and Environmental Sciences, University of Southampton, Life Sciences Building 85, University Road, Southampton, SO17 1BJ, UK. simon.lane@soton.ac.uk.
Methods in Molecular Biology (Clifton, N.J.)
|March 29, 2017
Summary
Maturing oocytes often make chromosome segregation errors. This study presents a novel live-imaging method to track chromosome movement and identify causes of mis-segregation during oocyte maturation.
Area of Science:
- Cell Biology
- Genetics
- Developmental Biology
Background:
- Accurate chromosome segregation is crucial for genetic stability.
- Maturing mammalian oocytes are prone to segregation errors, impacting fertility.
- Previous studies faced challenges in live oocyte chromosome imaging.
Purpose of the Study:
- To develop and describe an advanced live-imaging technique for studying chromosome segregation in maturing oocytes.
- To provide a transferable method for detailed live observation of chromosome dynamics.
Main Methods:
- Utilizing fluorescently labeled chromosomes within live oocytes.
- Tracking the "center of brightness" of chromosomes to monitor their movement.
- Implementing the method on a Leica TCS SP8 confocal microscope with computer-aided microscopy.
Main Results:
- Successfully established a detailed live-imaging method for oocyte maturation.
- Demonstrated the feasibility of tracking chromosome dynamics in real-time.
- The described software and experimental setup are transferable to other microscopy systems.
Conclusions:
- The developed method offers a powerful tool for investigating chromosome segregation errors in oocytes.
- This technique facilitates the identification of factors contributing to mis-segregation during oocyte maturation.
- Advances in live imaging are essential for understanding reproductive cell biology.
