Horse lymphocyte cell synchronization: improved technique for chromosome analysis.

Area of Science:

• Cytogenetics
• Molecular Biology
• Animal Science

Background:

• Accurate horse karyotyping requires methods revealing detailed cell cycle stages.
• Studying chromosomal abnormalities and replication patterns in horses is crucial for genetic research.

Purpose of the Study:

• To describe a novel method for horse lymphocyte cell synchronization.
• To facilitate detailed analysis of chromosomal replication patterns and karyotypes in horses.

Main Methods:

• Utilizing methotrexate for cell cycle synchronization and thymidine for DNA replication labeling.
• Treating horse lymphocyte cultures with colcemid and methotrexate for optimal cell cycle arrest.
• Harvesting cells 6 hours after releasing a 17-hour methotrexate block.

Main Results:

• The described method effectively synchronizes horse lymphocyte cells.
• This technique provides informative stages of the cell cycle for analysis.
• Optimal results for horse chromosome identification and analysis were achieved.

Conclusions:

• The methotrexate and thymidine method is a powerful tool for horse cytogenetics.
• This approach enables precise identification and analysis of horse chromosomes and their replication patterns.