| 银额果蝇的B染色体研究 2.昆明群体的生活力和B染色体的关系 |
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| 引用本文： | 凌发瑶,施立明.银额果蝇的B染色体研究 2.昆明群体的生活力和B染色体的关系[J].动物学研究,1992,13(3):271-275. |
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| 作者姓名： | 凌发瑶 施立明 |
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| 作者单位： | 中国科学院昆明动物研究所细胞与分子进化开放研究实验室 650107
(凌发瑶)，中国科学院昆明动物研究所细胞与分子进化开放研究实验室 650107(施立明) |
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| 摘 要： | 本文分析了钮额果蝇的生活力和B染色体的关系。结果表明,银额果蝇的B染色体在其生长和发育过程中具双重性调节作用。一方面,B染色体以单一的形式存在于单雌系核型中,即1B或2Bs,可刺激生长、发育,增强生活力。另一方面,在单雌系的细胞中存在多条B染色体,并形成核型多态性,这似乎对生长和发育又有一定的抑制作用而减弱其生活力。
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| 关 键 词： | 银额果蝇 B染色体 生长发育 |
THE STUDY OF B CHROMOSOMES IN Drosophila albomicans 2. THE REIATION BETWEEN B CHROMOSOMES ANDTHE VITALITY OF KUNMING POPULATION |
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| Ling Fayao Shi Liming.THE STUDY OF B CHROMOSOMES IN Drosophila albomicans 2. THE REIATION BETWEEN B CHROMOSOMES ANDTHE VITALITY OF KUNMING POPULATION[J].Zoological Research,1992,13(3):271-275. |
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| Authors: | Ling Fayao Shi Liming |
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| Abstract: | The relation between B chromosomes and the vitality of Drosophila albomicans were analysed. The results showed that B chromosomes of D. albomicans serves two regulated lunctions during growth and development process. Their characters showed that B chromosomes exist inkaryotype of iso-female line as unitary shape, 1B or 2Bs, that stimulate the action of growth and increase the vitality on the one hand, and multiple B chromosomes exist to form the karyotypc polymorphism resulted in restrictive action for growth and development on the other hand. |
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| Keywords: | Drosophila albomicans B chromosome Growth and development |
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