spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Friedlander, M.
Right arrow Articles by Hauschteck-Jungen, E.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Friedlander, M.
Right arrow Articles by Hauschteck-Jungen, E.

Journal of Cell Science, Vol 81, Issue 1 299-306, Copyright © 1986 by Company of Biologists

JOURNAL ARTICLES

Facultative heterochromatin in Locusta migratoria spermatogenesis: correlation between electron opacity and heteropycnosis

M Friedlander and E Hauschteck-Jungen

The unpaired X chromosome of Locusta migratoria males is facultatively heterochromatic in the spermatocytes and early spermatids, showing an alternating cycle of positive-negative-positive heteropycnosis. Discrimination between facultative heterochromatin and euchromatin was made using a modification of the Feulgen reaction. It was found that the differential stainability of the DNA of the X chromosome is correlated with the electron opacity of its chromatin. The corresponding differential stainability and electron opacity should reflect differences in protein content or in spatial rearrangement since the amount of DNA in the X chromosome that is transmitted by the spermatozoa to the next generation should remain constant.




© The Company of Biologists Ltd 1986