The chromosomes of the Cynomolgus macaque (Macaca fascicularis)
| Autor: | Jan Lindsten, R. Fernandez-Donoso, Erling Norrby |
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| Rok vydání: | 2009 |
| Předmět: |
Male
Secondary constriction Tritium Y chromosome Macaque Bivalent (genetics) biology.animal Testis Leukocytes Genetics Animals Metaphase X chromosome Blood Cells Sex Chromosomes biology Chromosome Haplorhini General Medicine Molecular biology Chiasma Karyotyping Autoradiography Macaca Female Colchicine Thymidine |
| Zdroj: | Hereditas. 65:269-275 |
| ISSN: | 0018-0661 |
| Popis: | The Cynomolgus or crab-eating macaque, Macaca fascicularis (M. irus) has 42 chromosomes. The X chromosome is submetacentric and about 5 % in length of the complement. One of the X chromosomes is very late replicating in the female somatic cells. The other X is also relatively late replicating. The Y chromosome is a minute acrocentric. A short metacentric chromosome was also found to be late replicating. Chromosome no. 20 has an obvious secondary constriction which often associates in a characteristic way. The sex bivalent is identified at pachytene as a characteristic “sex vesicle”. At diakinesis it shows an end-to-end association. The mean number of chiasmata per cell was 40 at diakinesis-first metaphase. |
| Databáze: | OpenAIRE |
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