| Autor: |
T.A. Craig-Cameron, P.E. Pell, D. I. Southern |
| Rok vydání: |
1972 |
| Předmět: |
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| Zdroj: |
Transactions of the Royal Society of Tropical Medicine and Hygiene. 66:145-149 |
| ISSN: |
0035-9203 |
| DOI: |
10.1016/0035-9203(72)90062-4 |
| Popis: |
The diploid chromosome number in those male G. m. morsitans examined is 2n = 8 ± 1 autosomes and the XY sex pair. Meiosis is almost certainly achiasmate and there is no recognizable diplotene or diakinesis. Only the 4 largest autosomes form bivalents (L1 and L2), the remaining small chromosomes appearing as univalents. These latter members are heterochromatic throughout prophase and they remain in close telomeric association throughout this phase. This is probably an adaptive mechanism ensuring their disjunction at 1st anaphase. The X and Y chromosomes differ both in length and centric location. They associate one with the other in an achiasmate manner via 2 small heterochromatic segments. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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