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蒙古裸腹溞染色体组型研究
Karyologic observation on Moina mongolica, a Cladocera

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Date
1999
Author
曹文清
林元烧
郭东晖
袁利庭
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  • 海洋环境-已发表论文 [5213]
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Abstract
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。
 
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.
 
Citation
台湾海峡,1999,(1):71-75
URI
https://dspace.xmu.edu.cn/handle/2288/105017

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