Jeun G, Locke M
Department of Zoology, University of Western Ontario, London, Canada.
Tissue Cell. 1993;25(2):295-304. doi: 10.1016/0040-8166(93)90027-i.
The fifth stage larval epidermis of Calpodes ethlius (Lepidoptera, Hesperiidae) is a syncytium of doublets where sibling cells are twins connected by residual midbodies between divisions. Twin cells resemble one another more than their other neighbours in such features as the shape and number of nucleolar particles, the number of actin bundles and the position of condensed female chromosomes. We have now found that they also resemble one another in the timing of cell division in preparation for pupation. Twins are more likely to divide together than at random. The paired timing of mitosis is presumed to be a result of the twins sharing a common cytoplasm.
黄襟蛱蝶（鳞翅目，弄蝶科）的五龄幼虫表皮是由双联体组成的合胞体，其中姐妹细胞是通过分裂之间的残留中间体相连的双胞胎细胞。在核仁颗粒的形状和数量、肌动蛋白束的数量以及浓缩的雌性染色体的位置等特征方面，双胞胎细胞彼此之间的相似性超过它们与其他邻居细胞的相似性。我们现在发现，在为化蛹做准备时，它们在细胞分裂时间上也彼此相似。双胞胎细胞比随机情况更有可能一起分裂。有丝分裂的配对时间被认为是双胞胎细胞共享共同细胞质的结果。
