Occurrence of amitotic division of trophoblast cell nuclei in blastocysts of the western spotted skunk (Spilogale putorius latifrons)

A cytogenetic examination of spreaded cells of diapausing and early activated blastocysts obtained from 7 female western spotted skunks was performed. Mitosis was not observed in 1626 cells obtained from 9 diapausing blastocysts; however, 12 (1.5%) figures of diploid mitosis were seen in 851 cells f...

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Bibliographic Details
Published in:Hereditas 2004-06, Vol.140 (3), p.177-184
Main Authors: ISAKOVA, GALINA K., MEAD, RODNEY A.
Format: Article
Language:English
Subjects:
Animals
Blastocyst - cytology
Cell Division
Cell Nucleus
Female
Mephitidae - embryology
Spilogale putorius
Trophoblasts - cytology
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Summary:A cytogenetic examination of spreaded cells of diapausing and early activated blastocysts obtained from 7 female western spotted skunks was performed. Mitosis was not observed in 1626 cells obtained from 9 diapausing blastocysts; however, 12 (1.5%) figures of diploid mitosis were seen in 851 cells from 5 early activated embryos. Diameter of the cell nuclei varied from 4 to 29 μm during diapause, and from 5 to 40 μm in activated blastocyst, and the heterogeneity in nuclear size was significantly different between diapausing and activated embryos (P
ISSN:0018-0661
1601-5223
DOI:10.1111/j.1601-5223.2004.01749.x