Polymorphism and Morphotype Transformations in the Rotifer(Brachionus calyciflorus)
萼花臂尾轮虫多态性及形态型转化(英文)作者机构：北京师范大学生命科学学院教育部生物多样性与生态工程重点实验室北京100875
出 版 物：《Zoological Research》 (动物学研究（英文）)
年 卷 期：2007年第28卷第1期
页 面：68-72页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 071002[理学-动物学]
主 题：Brachionus calyciflorus Morphotype Polymorphism Posterolateral spine
摘 要：The relationship of three Brachionus calyciflorus morphotypes （two short-spined, single-spined and spineless ones） was studied in the laboratory. Newly hatched females of each morphotype were cultured individually in an inorganic or Asplanchna-conditioned mediums, and the morphotype of their offspring were checked at 200 x magnification. Females of each morphotype, cultured in the inorganic medium, could produce offspring of these three morphotypes in a single generation. Females of all three morphotyes could respond to specific Asplanchna-substances when they were cultured in Asplanchna-conditioned medium. Moreover, we observed that these three morphotype females could coexist in the medium and had three types of egg-bearing females. Based on the above observations we suggest that B. calyciflorus was a morphotype complex and has three basic morphotypes.
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