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Related Experiment Videos

Purifying human Y chromosomes by flow cytometry and sorting.

J A Fantes, D K Green, H J Cooke

    Cytometry
    |July 1, 1983
    PubMed
    Summary

    Researchers developed a novel method to isolate human Y chromosomes from blood lymphocytes using flow cytometry. This technique successfully enriched Y chromosome samples, enabling DNA library construction for further genetic research.

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    Area of Science:

    • Genetics
    • Molecular Biology
    • Cytometry

    Background:

    • Enriching specific chromosomes like the Y chromosome is crucial for genetic studies and the construction of specialized DNA libraries.
    • Traditional methods for chromosome isolation can be inefficient and may not yield sufficient quantities for downstream applications.

    Purpose of the Study:

    • To describe a new method for producing an enriched sample of human Y chromosomes from peripheral blood lymphocytes.
    • To assess the efficiency and yield of Y chromosome isolation using flow cytometry.

    Main Methods:

    • Peripheral blood lymphocytes from normal male donors were used to prepare metaphase chromosomes.
    • Chromosomes were stained with Hoechst 33258 and analyzed using a flow cytometer and sorter.
    • A single donor yielding a distinct Y chromosome peak was identified for sorting.

    Main Results:

    • Flow cytometry sorting successfully isolated a population of chromosomes with 70% identified as Y chromosomes.
    • Large batches (millions) of Y chromosomes were obtained from relatively small blood donations (40 ml).
    • The sorted Y chromosomes were suitable for assessing DNA content and constructing a DNA library.

    Conclusions:

    • The described method provides an effective means of enriching human Y chromosomes from peripheral blood lymphocytes.
    • This technique facilitates the production of substantial quantities of Y chromosomes for genetic research and library construction.
    • The optimized flow cytometry approach offers a valuable tool for advancing Y chromosome-related studies.

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