THE CHROMOSOME COMPLEMENT OF RABBIT BLASTOCYSTS IN RELATION TO THE TIME OF MATING AND OVULATION
| Autor: | David H. Carr, Evelyn L. Shaver |
|---|---|
| Rok vydání: | 1969 |
| Předmět: |
Male
Ovulation medicine.medical_specialty Time Factors media_common.quotation_subject Plant Science Biology Chorionic Gonadotropin Chromosomes Polyploidy Corpus Luteum Internal medicine Genetics medicine Animals Sex Ratio Mating Sex Chromosome Aberrations reproductive and urinary physiology media_common Chromosome Cell Biology Embryo Mammalian Endocrinology Fertilization Karyotyping embryonic structures Female Rabbits Sex ratio |
| Zdroj: | Canadian Journal of Genetics and Cytology. 11:287-293 |
| ISSN: | 0008-4093 |
| DOI: | 10.1139/g69-036 |
| Popis: | Six-day blastocysts were recovered from rabbits mated at various intervals from 0 to 10 hours after an ovulation-inducing injection of chronic gonadotrophin. Ten of eighty or 13% of the blastocysts from animals mated between 6 and 9 hours after injection were triploid in chromosome constitution. When karyotyped, seven of the triploids had an XXY and three an XXX sex chromosome complex. The incidence of chromosome abnormalities at delay intervals from 0 to 4 hours was 5%, approximately. No triploids were found at these times. The sex chromosome complex of 6-day blastocysts was XY in 54% and XX in 46% of the blastocysts. No difference in the sex ratio was noted with delayed mating. |
| Databáze: | OpenAIRE |
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