Sympatric occurrence of triploid, aneuploid and tetraploid weatherfish Misgurnus fossilis (Cypriniformes, Cobitidae) |
| |
| Authors: | Drozd B Flajšhans M Ráb P |
| |
| Institution: | 1. University of South Bohemia in ?eské Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Záti?í 728/II, 389 25 Vodňany, Czech Republic;2. Institute of Animal Physiology and Genetics, AS CR, v.v.i., Department of Vertebrate Evolutionary Biology and Genetics, Laboratory of Fish Genetics, 277 21 Liběchov, Czech Republic |
| |
| Abstract: | Ploidy analyses of 116 weatherfish Misgurnus fossilis individuals revealed the sympatric occurrence of triploid, intermediate aneuploid and tetraploid specimens in a 1:1:4 ratio. No diploids were detected and the sex ratio of triploids and tetraploids was 1:1, while that of aneuploids was skewed at 3:1 for males. An origin of intermediate aneuploids from mating triploids with tetraploids is hypothesized. |
| |
| Keywords: | flow cytometry genome size loach sex ratio variation in natural polyploidy |
| 本文献已被 PubMed 等数据库收录！ |
|
