| 蒙古裸腹溞染色体组型研究 |
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| 引用本文： | 曹文清,林元烧,郭东晖,袁利庭.蒙古裸腹溞染色体组型研究[J].台湾海峡,1999,18(1):71-75. |
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| 作者姓名： | 曹文清 林元烧 郭东晖 袁利庭 |
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| 作者单位： | 厦门大学海洋学系、亚热带海洋研究所,厦门 361005 |
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| 摘 要： | 本文对驯养于实验室自然海水中的蒙古裸腹溞（Ｍｏｉｎａ ｍｏｎｇｏｌｉｃａＤａｄａｙ）染色体进行了分析、研究。结果表明：蒙古裸腹溞染色体数目为ｎ＝１２， ２ｎ＝２４。其中１０条为中部着丝点染色体，２条为亚中部着丝点染色体，１２条为端部着丝点染色体，总臂数ＮＦ＝３６。其核型公式为２Ｎ＝１０Ｍ＋２ＳＭ＋１２Ｔ。本文还与溞属（Ｄａｐｈｎｉａ）６个种类的染色体形态进行了比较，并对蒙古裸腹溞孤雌生殖与两性生殖及性转化的问题开展了讨论。
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| 关 键 词： | 蒙古裸腹溞 染色体 组型 |
| 修稿时间： | 1997年4月8日 |
Karyologic observation on Moina mongolica , a Cladocera |
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| Cao Wenqing, Lin Yuanshao, Guo Donghui, Yuan Liting.Karyologic observation on Moina mongolica , a Cladocera[J].Journal of Oceanography In Taiwan Strait,1999,18(1):71-75. |
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| Authors: | Cao Wenqing Lin Yuanshao Guo Donghui Yuan Liting |
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| Abstract: | An karyologic analytical study is carried on the chromosome of Moina mongolica Daday, by means of hot-dropping method, from the population that have been cultured in natural sea water under laboratory conditions. Observed results show that the chromosome number of this species is n=12, 2n=24, and that 10 of these chromosome group metacentric, 2 sub metacentric and 12 telocentric. The karyotypc formula of 2N=10M 2SM 12T is suggest ed. Chromosome morphology among 6 species of Daphnia is compared(Collcerning with aga- mocytogony, sexual reproduction and sexual differentiation of Moina mongoloca are discussed in the present paper. |
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| Keywords: | Moina mongolica chromosome karyotype |
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