Meiotic chromosome configurations in triploid progeny from reciprocal crosses between wild-type diploid and natural tetraploid loach Misgurnus anguillicaudatus in China
文献类型：期刊论文
| 作者 | Li, Ya-Juan; Gao, Yang-Chun; Zhou, He; Ma, Hai-Yan; Li, Jia-Qi; Arai, Katsutoshi |
| 刊名 | GENETICA
 |
| 出版日期 | 2015-10 |
| 卷号 | 143期号:5页码:555-562 |
| 关键词 | Bivalent Gamete Hybrid Polyploid Trivalent Univalent |
| 英文摘要 | Here, we showed meiotic chromosome configurations prepared from oocyte germinal vesicles and spermatocytes of triploid loaches produced from reciprocal crosses between wild-type diploids (2n = 50) obtained from Dalian, Liaoning Province, China and natural tetraploids (4n = 100) from Chibi, Hubei Province, China. Major meiotic cells in triploids comprised 25 bivalents and 25 univalents, but cells with one to five trivalents were also observed. When three homologous chromosomes bearing nucleolar organizing regions (NOR) were identified with the detection of signals or positive sites by silver staining, chromomycin A(3) staining and fluorescence in situ hybridization with a 5.8S + 28S rDNA probe, two third of selected triploid cells gave a configuration including one bivalent with two NORs (association of two homologous chromosomes) and one univalent with one NOR. However, other triploid cells showed three univalent each of which had one NOR, suggesting a failure of synapsis between homologous chromosomes. These results suggested that triploid female and male should produce aneuploid gametes with the theoretical mode at 1.5n (37 or 38 chromosomes). |
| WOS研究方向 | Genetics & Heredity |
| WOS记录号 | WOS:000360845800003 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32935]  |
| 专题 | 生态环境研究中心_中国科学院环境生物技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Li, Ya-Juan,Gao, Yang-Chun,Zhou, He,et al. Meiotic chromosome configurations in triploid progeny from reciprocal crosses between wild-type diploid and natural tetraploid loach Misgurnus anguillicaudatus in China[J]. GENETICA,2015,143(5):555-562. |
| APA | Li, Ya-Juan,Gao, Yang-Chun,Zhou, He,Ma, Hai-Yan,Li, Jia-Qi,&Arai, Katsutoshi.(2015).Meiotic chromosome configurations in triploid progeny from reciprocal crosses between wild-type diploid and natural tetraploid loach Misgurnus anguillicaudatus in China.GENETICA,143(5),555-562. |
| MLA | Li, Ya-Juan,et al."Meiotic chromosome configurations in triploid progeny from reciprocal crosses between wild-type diploid and natural tetraploid loach Misgurnus anguillicaudatus in China".GENETICA 143.5(2015):555-562. |
入库方式： OAI收割
来源：生态环境研究中心
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