| 蜘蛛的B染色体研究——Ⅰ.武汉地区粽管巢蛛的B染色体(蜘蛛目:管巢蛛科) |
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| 引用本文： | 曾庆韬,晏建章,刘凤想.蜘蛛的B染色体研究——Ⅰ.武汉地区粽管巢蛛的B染色体(蜘蛛目:管巢蛛科)[J].蛛形学报,1996(2). |
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| 作者姓名： | 曾庆韬 晏建章 刘凤想 |
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| 作者单位： | 湖北大学生命科学系，湖北大学生态学研究所，湖北大学生态学研究所 武汉 430062，武汉 430062，武汉 430062 |
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| 摘 要： | 首次发现武汉地区粽管巢蛛胚胎细胞中存在B染色体,观察数目为1～28条,B染色体数目从有丝分裂晚前期到中期逐渐减少,在非整倍体细胞中,随着A染色体的减少逐渐增多。B染色体形态稳定;大多数为等臂染色体,少数具亚端着丝点和端着丝点;外观上明显小于A染色体。
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| 关 键 词： | 蜘蛛 粽管巢蛛 胚胎细胞 B染色体 |
STUDY ON THE B CHROMOSOMES OF SPIDER I .B CHROMOSOMES OF CWBIONA JAPONICOLA (CLUBIONIDAE, ARANEIDA) IN WUHAN |
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| Zeng Qingtao.STUDY ON THE B CHROMOSOMES OF SPIDER I .B CHROMOSOMES OF CWBIONA JAPONICOLA (CLUBIONIDAE, ARANEIDA) IN WUHAN[J].Acta Arachnologica Sinica,1996(2). |
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| Authors: | Zeng Qingtao |
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| Abstract: | In this paper .embryonic cells of Clubiona japonicola containing B chromosomes was reported for the first time in Wuhan. The number of B chromosomes is from 1 to 28 and decreases gradually from mitosis prophase to metaphase. But in aneupioid, the number increases gradually with A chromosomes decreasing. The forms of B chromosomes are very stable. Most of B chromosomes are isochromosomes, while few of them are subtelocentri chromosomes or telochromosomes. B chromosomes are obviously smaller than A chromosomes in outward appearance. |
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| Keywords: | Spider Clubiona japordcoLa Embryonic cell B chromosome |
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