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Article
Localization of SCP2 and SCP3 protein molecules within synaptonemal complexes of the rat
SCP2 and SCP3 are major protein components of the lateral elements (LEs) of synaptonemal complexes (SCs) of the rat, with M rs of 173,000 and 30,000. We performed a detailed immunocytochemical comparison of the l...
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Article
A change in the phosphorylation pattern of the 30000–33000 M r synaptonemal complex proteins of the rat between early and mid-pachytene
The lateral elements (LEs) of synaptonemal complexes (SCs) of the rat contain major components with relative electrophoretic mobilities (M r , s) of 30000–33000, which are the p...
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Article
Development of the first meiotic prophase stages in human fetal oocytes observed by light and electron microscopy
The development of the first meiotic prophase stages was studied in two series of human female embryos and fetuses aborted for social reasons. The first series (64 embryos or fetuses aborted at 6–24 weeks of g...
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Article
The influence of hypotonic treatment on the morphology of meiotic stages II. Prophase of the first meiotic division of female mice up to dictyotene
Various investigations of prophase of the first meiotic division of female mice showed different results with respect to the appearance of those stages during ovarian development. It was not clear up to now wh...
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Article
The influence of hypotonic treatment on the morphology of meiotic stages I. Prophase of the first meiotic division of male mice, man and Locusta migratoria
Male mice were treated with hydroxyurea (HU) to obtain a restricted germ cell population and a sequential analysis of the first meiotic prophase was performed. The results from HU-treated mice were compared wi...
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Abstracts of Selected Posters
The analysis of chromosomes of mouse embryos permits detection of transmitted chromosome damage. The protocol involves the treatment of one parent (usually the male) with a clastogen, recovery of embryos and p...
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Article
The behaviour and structure of the sex chromosomes in spermatocytes of Microtus oeconomus
The meiotic behaviour and structure of the sex chromosomes of Microtus oeconomus (2n=30) in Giemsa stained preparations are described. The X-Y pair appears as a sex vesicle at late zygotene. At late pachytene an ...
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Article
A sequential analysis of the development of the synaptonemal complex in spermatocytes of the mouse by electron microscopy using hydroxyurea and agar filtration
A method is presented for sequential analysis of the development and behaviour of the Synaptonemal Complex (SC) in primary spermatocytes of male mice, using agar filtration for electron microscope grid prepara...
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Article
Absence of an effect of lead acetate on sperm morphology, sister chromatid exchanges or on micronuclei formation in rabbits
The influence of lead on sperm morphology, sister chromatid exchanges or on micronuclei formation was studied on male rabbits after exposure to doses of 0, 0.25, and 0.50 mg lead acetate/kg body weight subcuta...
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Article
A light microscopic study of the development and behaviour of the synaptonemal complex in spermatocytes of the mouse
A method is presented for the sequential analysis of male meiosis using hydroxyurea (HU). HU produces a gap in the spermatogenic line. The front of surviving cells behind the gap was examined day by day using ...
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Article
Location and variation of the constitutive heterochromatin in Petunia hybrida
The location of heterochromatin in the chromosomes of Petunia hybrida (2n=14) is presented. C-banded mitotic metaphase chromosomes and carmine-stained pachytene bivalents have been studied. It is shown that the h...
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Article
Dosage effect of a gene with a regulating effect on anthocyanin synthesis in a trisomic Petunia hybrida
A Petunia hybrida inbred line (W 28) has white flowers with red spots on the corolla. These spots are the result of back mutations of an unstable allele of the gene Anl for anthocyanin synthesis. Among the progen...
