›› 2002, Vol. 45 ›› Issue (5): 662-665.

• 研究论文 • 上一篇    下一篇

柑桔始叶螨与柑桔全爪螨染色体制备方法与核型探讨

邹方东,岳碧松,徐柳,张义正,曾宗永   

  • 出版日期:2002-10-20 发布日期:2002-10-20

Use of a new method to study karyotypes of Eotetranychus kankitus and Panonychus citri

ZOU Fang-Dong, YUE Bi-Song,XU Liu, ZHANG Yi-Zheng, ZENG Zong-Yong   

  • Online:2002-10-20 Published:2002-10-20

摘要: 采用一种新的染色体制备方法,成功地制备和观察了柑桔始叶螨和柑桔全爪螨的中期染色体。柑桔始叶螨的核型n=4、2n=8,柑桔全爪螨的核型n=3、2n=6或n=4、2n=8。C显带与扫描电镜结果显示,柑桔始叶螨与柑桔全爪螨为全着丝粒染色体,并存在混倍性现象。

关键词: 叶螨, 染色体制备, 核型, 全着丝粒染色体, 混倍性

Abstract: A new method had been developed to prepare the chromosomes of Eotetranychus kankitus Ehara and Panonychus citri (McGregor). It was found that the karyotype of Eotetranychus kankitus Ehara is n=4, 2n=8, and that of Panonychus citri is n=3, 2n=6 or n=4, 2n=8. The results of C-banding and scanning electromicroscope photographs indicated that chromosomes of these species were holokinetic. Mixoploidy was also discovered in the karyotypes of these mites.

Key words: leaf mite, chromosome preparation, karyotype, holokinetic chromosome, mixoploidy