Spermatid Dissection
Spermatid Dissection - Related Videos
06:31
Step-specific Sorting of Mouse Spermatids by Flow Cytometry
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Cited by 11 •
2015
We describe a sorting strategy for mouse spermatids using flow cytometry. Spermatids are sorted into four highly pure populations, including round (spermiogenesis steps 1-9), early elongating (spermiogenesis steps 10-12), late elongating (spermiogenesis steps 13-14) and elongated spermatids (spermiogenesis steps 15-16). DNA staining, size and granulosity are used as selection parameters.
08:41
Mouse Round Spermatid Injection
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Cited by 1 •
2024
Here, we introduce a method for performing round spermatid injection (ROSI) in mice, a technique with promising clinical applications and utility for investigating the mechanisms underlying embryonic development.
10:18
Dissection of Organs from the Adult Zebrafish
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Cited by 167 •
2010
This protocol describes a procedure for identifying and dissecting organs from the adult zebrafish.
10:22
Enrichment of Pachytene Spermatocytes and Spermatids from Mouse Testes Using Standard Laboratory Equipment
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Cited by 29 •
2019
Presented here is a protocol for enriching pachytene spermatocytes, round spermatids, and elongating spermatids from adult mouse testes using a discontinuous bovine serum albumin density gradient with standard laboratory equipment.
07:40
Dissection of the Adult Zebrafish Kidney
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Cited by 38 •
2011
The zebrafish kidney is home to both renal and hematopoietic adult stem/progenitor cells, and represents an outstanding opportunity to study these cell types and their progeny in a vertebrate model organism. Here, we demonstrate a detailed dissection procedure that enables the researcher to identify and surgically remove the adult zebrafish kidney, which can be used for applications such as cell isolation, transplantation, and expression studies of kidney and/or blood cell populations.
FAQs
High-resolution microscopy allows investigators to distinguish individual spermatids within tissue or cell suspensions and select cells for further handling. Visual assessment supports examination of morphology and developmental progression, helping researchers relate cellular appearance to stages of sperm formation. This selective approach is important when analysis requires material from a particular cell rather than a mixed population.
Preserving cellular structures and genetic material maintains the features needed for reliable analysis after isolation. Structural integrity supports examination of morphology and nuclear organization, while retained genetic material enables molecular investigations. Careful micromanipulation therefore connects the isolated cell to downstream imaging, molecular analysis, or functional studies without losing key biological information.
Individual spermatids provide material for examining how the nucleus is organized and how chromatin changes during development. Chromatin remodeling refers to alterations in the organization of genetic material as germ cells progress toward sperm formation. Studying these features in selected cells can clarify developmental progression and the cellular events associated with spermatid differentiation.
A typical workflow begins with tissue or a cell suspension placed under high-resolution microscopy. The material is carefully separated so individual cells can be identified. A selected spermatid is then released and transferred with fine tools, while the operator works to preserve its cellular structures and genetic material for subsequent examination or analysis.
This technique is useful when researchers need to study individual germ cells during sperm formation rather than examine an undifferentiated sample. Its applications include investigating spermatid morphology, germ-cell differentiation, developmental progression, and male fertility. By isolating selected cells, the approach can connect specific cellular features with broader questions about how spermatozoa develop.
After transfer, an isolated spermatid can provide material for imaging, molecular analysis, or functional studies. Imaging can document morphology and nuclear organization, whereas molecular analysis can examine retained genetic material and chromatin-related features. Functional studies extend the investigation toward cellular mechanisms involved in sperm formation, making the method useful across several biological research goals.