Journal ArticleDOI
Spermatogonial and meiotic chromosomes of the Armenian hamster, Cricetulus migratorius.
K. S. Lavappa,G. Yerganian +1 more
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TLDR
In this paper, two distinct types of spermatogonial metaphase complements are described on the basis of staining affinities and sex chromosome polymorphism of the dwarf hamster Cricetulus migratorius.About:
This article is published in Experimental Cell Research.The article was published on 1970-07-01. It has received 34 citations till now. The article focuses on the topics: Bivalent (genetics) & Chiasma.read more
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Book ChapterDOI
The behavior of the XY pair in mammals.
TL;DR: Analysis of thick and thin sections of each stage in the cycle of the seminiferous epithelium of the mouse show that after leptonema the chromosomes become strongly condensed during zygonema, and that zygotene nuclei are relatively small and strongly stained.
Journal ArticleDOI
Synaptonemal complex karyotyping in spermatocytes of the Chinese hamster (Cricetulus griseus). I. Morphology of the autosomal complement in spread preparations.
TL;DR: Using the Counce-Meyer spreading technique, in over 70 spermatocytes it was possible consistently to obtain whole, flattened nuclei containing complete sets of pachytene SCs, suggesting regularity of SC morphology implies structural stability sufficient to withstand the stresses imposed by the procedure.
Book ChapterDOI
Sister Chromatid Exchanges
TL;DR: Analysis of sister chromatid exchange formation in cytological systems has already provided information about chromosome structure and has been used to detect the effects of clastogens and to differentiate between chromosome fragility diseases.
Journal ArticleDOI
Bromodeoxyuridine tablet methodology for in vivo studies of DNA synthesis.
TL;DR: In this paper, the same authors measured the in vivo sister chromatid exchange frequencies in mouse spleen, marrow, and thymus and found that they were significantly greater than those in spermatogonia.
Journal ArticleDOI
Three hamster species with different scrapie incubation times and neuropathological features encode distinct prion proteins.
D H Lowenstein,Darel A. Butler,David Westaway,Michael P. McKinley,Stephen J. DeArmond,Stanley B. Prusiner +5 more
TL;DR: Differences within the PrP open reading frame that uniquely distinguish the three hamster species are within a hydrophilic segment of 11 amino acids that includes polymorphisms linked to scrapie incubation times in inbred mice and an inherited prion disease of humans.
References
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Journal ArticleDOI
An air-drying method for meiotic preparations from mammalian testes.
TL;DR: The air-drying method gives improved spreading of the chromosomes and less cell breakage compared with squash techniques, suitable for stages of male meiosis in which the chromosomes are condensed.
Journal ArticleDOI
Synthetic activities during spermatogenesis in the mouse, rna and protein.
TL;DR: A number of evidences suggest that this “arginine-rich” spermatid histone is effectively synthesized within the nucleus, although the alternative interpretation of a cytoplasmic synthesis followed by transfer of the newly synthesized histone into the nucleus cannot be actually rejected.