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Sequential study of synaptonemal complexes in mouse spermatocytes by light and electron microscopy

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Abstract

Synaptonemal complex (SC) studies in male mice from the beginning of meiosis to its completion (7–40 days of age) indicate: (1) the existence of a leptotene stage with fragmented and completely unpaired axial elements; (2) that synapsis begins at several different initiation points of the axial elements, resulting in X-shaped and Y-shaped configurations; (3) that interlocking of axial elements at zygotene is a normal phenomenon; and (4) that zygotene (presynaptic) and diplotene (postsynaptic) configurations are different from each other.

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Author notes

  1. M. Guitart

    Present address: Departament de Biologia Cellular. Facultat de Ciències, Universitat Autònoma de Barcelona, Bellaterra (Barcelona), Spain

Authors and Affiliations

  1. Department of Cell Biology, Faculty of Science, Campus Universitari, Bellaterra (Barcelona), Spain

    M. Guitart, M. D. Coll, M. Ponsà & J. Egozcue

  2. Institut de Biologia Fondamental ‘V. Villar Palasi’ da Universitat Autònoma de Barcelona, Campus Universitari, Bellaterra (Barcelona), Spain

    M. D. Coll, M. Ponsà & J. Egozcue

Authors
  1. M. Guitart
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  2. M. D. Coll
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  3. M. Ponsà
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  4. J. Egozcue
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Additional information

This investigation received financial support from the special Programme of Research, Development and Research Training in Human Reproduction, World Health Organization.

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Guitart, M., Coll, M.D., Ponsà, M. et al. Sequential study of synaptonemal complexes in mouse spermatocytes by light and electron microscopy. Genetica 67, 21–30 (1985). https://doi.org/10.1007/BF02424457

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  • DOI: https://doi.org/10.1007/BF02424457

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