Biol Reprod Email Content Delivery
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

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 HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by JAGIELLO, G. M.
Right arrow Articles by LIN, J. S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by JAGIELLO, G. M.
Right arrow Articles by LIN, J. S.
Agricola
Right arrow Articles by JAGIELLO, G. M.
Right arrow Articles by LIN, J. S.

Biology of Reproduction, Vol 10, 354-363, Copyright © 1974 by Society for the Study of Reproduction

Chiasma Frequency and Disjunctional Behavior of Ewe and Cow Oocytes Matured In Vitro

G. M. JAGIELLO 1, W. A. MILLER 1, M. B. DUCAYEN 1, , and J. S. LIN 1

1 Departments of Obstetrics and Gynecology, Human Genetics and Development, and International Institute for the Study of Human Reproduction, Columbia University College of Physicians and Surgeons, New York 10032


Oocytes obtained from adult female sheep and cattle were studied during in vitro meiotic maturation for cytogenetic data. Ninety-three diakinesis/first-metaphase ewe preparations obtained afer 16-24 hr of culture had an average chiasma frequency per bivalent of 1.30. One hundred and seventy-seven ewe second-metaphase ova obtained at 23-48 hr of culture contained 27 symmetrical chromosomes. One possible heterozygote was seen at second metaphase, but was not reflected in appropriate first-metaphase configurations. One hundred and nine diakinesis/first-metaphase cow preparations obtained after 8-26 hr of culture had an average chiasma frequency per bivalent of 1.19. Ninety-nine cow second-metaphase ova obtained at 19-48 hr of culture contained 30 chromosomes plus 3 which were diploid. Comparisons with in vivo findings for these species and in vitro data for other species are made.

Accepted on August 7, 1973




This article has been cited by other articles:


Home page
 ReproductionHome page
T. Somfai, M. Ozawa, J. Noguchi, H. Kaneko, K. Ohnuma, N. W. K. Karja, M. Fahrudin, N. Maedomari, A. Dinnyes, T. Nagai, et al.
Diploid porcine parthenotes produced by inhibition of first polar body extrusion during in vitro maturation of follicular oocytes.
Reproduction, October 1, 2006; 132(4): 559 - 570.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1974 by the Society for the Study of Reproduction.