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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences >
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Simultaneous formation of haploid, diploid and triploid eggs in diploid-triploid mosaic loaches
| Title: | Simultaneous formation of haploid, diploid and triploid eggs in diploid-triploid mosaic loaches |
| Other Titles: | 1N, 2N and 3N eggs of mosaic loaches |
| Authors: | Yoshikawa, H. Browse this author | | Morishima, K. Browse this author | | Fujimoto, T. Browse this author | | Yamaha, E. Browse this author | | Arai, K. Browse this author →KAKEN DB |
| Keywords: | Misgurnus anguillicaudatus | | mosaic | | clone | | polyploid |
| Issue Date: | Oct-2007 |
| Publisher: | Fisheries Society of the British Isles |
| Journal Title: | Journal of Fish Biology |
| Volume: | 71 |
| Issue: | sb |
| Start Page: | 250 |
| End Page: | 263 |
| Publisher DOI: | 10.1111/j.1095-8649.2007.01608.x |
| Abstract: | In the loach Misgurnus anguillicaudatus, very few diploid-triploid mosaic individuals, which are generated by accidental incorporation of the sperm nucleus into diploid eggs produced by clonal diploid loach, occur in nature. Ploidy examination of gynogenetic progeny induced by activation with UV-irradiated goldfish sperm indicated that diploid-triploid mosaic females laid haploid, diploid and triploid eggs, simultaneously. In addition, triploid eggs exhibited larger egg sizes. Microsatellite genotyping of diploid-triploid mosaics revealed that triploid genotypes of mosaic mothers consisted of two alleles specific to the clonal diploid and one allele from normal diploid male. Diploid eggs from mosaic mother had genotypes absolutely identical to the diploid clone. Most genotypes of triploid eggs were identical to the mosaic mother, and one of three alleles of the mosaic mother was transmitted to haploid eggs. These results suggested that diploid germ cells, which had a clonal genome, were differentiated into clonal diploid eggs, and triploid and haploid eggs were produced from triploid germ cells in the same ovary of mosaic individuals. |
| Rights: | The definitive version is available at www.blackwellsynergy.com |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/39392 |
| Appears in Collections: | 水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 荒井 克俊
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